| Entries |
| Document | Title | Date |
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| 20080223840 | Squeezing detection control method for consumable electrode arc welding - A squeezing detection control method is provided for consumable electrode arc welding. The method includes a step of detecting a droplet squeezing phenomenon by checking that a change in a voltage or resistance between the consumable electrode and base material reaches a squeezing detection reference value, and a step of executing output control for rapidly decreasing a welding current passing through a short-circuited load when the squeezing phenomenon is detected, so that arc re-striking occurs in a state of low current. The squeezing detection reference value is set to a first value during the electrode positive polarity, and set to a second value during the electrode negative polarity. The second value is different from the absolute value of the first value, and each of the first and the second values is set such that the resultant welding state is satisfactory. (FIG . | 09-18-2008 |
| 20080308540 | Engine driven welding machine - An engine driven welding machine which is favorable in operability and has high reliability and reliably performs idle stop and restart is provided. An engine driven welding machine in which a welding generator is driven by an engine, and the aforesaid engine performs an idle operation when a welding operation is stopped is characterized by including an engine stop signal forming circuit IT which forms a stop signal for stopping an operation of the aforesaid engine when time of the aforesaid idle operation exceeds a predetermined time, a direct-current power supply PS connected to an output terminal of the aforesaid welding machine, voltage detecting means VS which detects a voltage change of the aforesaid output terminal, a restart detecting circuit RS which forms a restart signal for restarting the aforesaid engine when the detected voltage by the aforesaid voltage detecting means shows a predetermined change mode for starting the welding operation, and an engine control circuit EC which stops the aforesaid engine in response to the aforesaid stop signal, and restarts the aforesaid engine in response to the aforesaid restart signal. | 12-18-2008 |
| 20090008374 | Portable generator and battery charger verification control method and system - A system, in one embodiment, may include a portable welding unit having an engine, a generator coupled to the engine, a compressor coupled to the engine, and a smart battery charger coupled to the generator. A system, in another embodiment, may include a battery charger, wherein the battery charger is configured to monitor a temperature of a battery, an ambient temperature, a battery charge time, or a combination thereof. A system, in a further embodiment, may include at least one circuit having a welding control circuit and a battery charge circuit. The battery charge circuit may be configured to adjust an output based on a battery type, a battery voltage rating, a sensed feedback, a battery test, or a combination thereof. | 01-08-2009 |
| 20090057286 | WELDING DEVICE - A welding device has a welding source and a welding-source peripheral device. The welding source has a welding-source-side storage section for storing a welding condition item and a transmitter for transmitting the welding condition item. On the other hand, the welding-source peripheral device has a receiver for receiving the welding condition item; a peripheral-device-side storage section for storing the welding condition item; a display for displaying the welding condition item; and a selecting section for selecting a proper item from the welding condition item. The structure above allows the welding device to be connected to various types of welding sources. | 03-05-2009 |
| 20090266805 | Method And Apparatus For Receiving A Universal Input Voltage In A Welding Power Source - A method and apparatus for providing a welding current is disclosed. The power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier that rectifies the ac input into a dc signal. A dc voltage stage converts the dc signal to a desired dc voltage and an inverter inverts the dc signal into a second ac signal. An output transformer receives the second ac signal and provides a third ac signal that has a current magnitude suitable for welding. The welding current may be rectified and smoothed by an output inductor and an output rectifier. A controller provides control signals to the inverter and an auxiliary power controller that can receive a range of input voltages and provide a control power signal to the controller. | 10-29-2009 |
| 20100006552 | Method And Apparatus For Short Arc Welding - A short circuit arc welding system is disclosed. The control scheme uses a current command signal comprised of a long-term current command that sets the long-term current command level and a real-time or short-by-short current command to drive the output current. Feedback is used to determine if the desired arc length is present and to adjust the long-term command. The short-by-short current command is derived from real-time arc current feedback and is used to control the burn-off rate by adjustment of the current command. The short being about to clear is detected in real time. When the process is ending a very low current level is provided to avoid forming a ball. If a short is created, after the low current level, a burst of energy is provided to clear of burn off the short. After the short is cleared, very low current is again provided to avoid forming a large ball, until the wire stops and the process ends. | 01-14-2010 |
| 20100065540 | WELDING DEVICE AND SETTER OF THE SAME - Setter transmits information of an instruction that changes a content of a welding condition item to welder power supply, which then selects a content of the welding condition item from welding-condition-item memory & selector based on the information. At the same time, welder power supply selects data of the welding condition, which data corresponds to the content selected, and then transmits the selected content to setter, which displays the content on display section. The foregoing structure allows setter to set a content of a welding condition item for welder power supply without modifying or replacing setter presently used. | 03-18-2010 |
| 20100089887 | Method for Controlling a Protection Visor - The invention describes a method for controlling a protective shield ( | 04-15-2010 |
| 20100122973 | WELDING PROCESS - A method for repairing an article is provided, and includes an identifying step to identify the article to be repaired. A touch off step locates and marks a plurality of spatial coordinates on the article relative to a home position. A calculating step is performed to calculate a desired welding sequence to obtain a desired shape of the article. A verification step verifies the desired location of the plurality of spatial coordinates. A welding step deposits at least a first weld repair layer on a surface of the article, and the article is repaired by building up at least a portion of a surface of the article to a desired shape or profile. | 05-20-2010 |
| 20100133249 | Method and device for controlling a power source and power source having such a device - The invention relates to a method for controlling the power source of a welding, cutting or plasma coating system, wherein the power source comprises a measuring part and a controllable clocked power part and wherein a measure value, which represents a measure of a characteristic variable, that is to be controlled, of the power part, is determined by means of the measuring part, and wherein the measure value is used for controlling the power part. In order to develop the method in such a way that a measure of the characteristic variable to be controlled can be determined within a short time, it is proposed according to the invention that a measured variable correlating with the characteristic variable to be controlled of the power part is at least approximately integrated starting from a prescribed initial value over a prescribed integration time, the duration of which corresponds to one or more clock periods of the clocked power part, and the measure value is determined from the integration value obtained in this way, and that this process is continuously repeated. A device for carrying out the method and a power source having such a device are also proposed. | 06-03-2010 |
| 20100140241 | Auto-darkening viewing modules and control modules for welding light protection - A welding machine having a first receiver for remote control of the operating parameters, a viewing module having a second receiver for remotely controlling the operating parameters of the viewing module, and a control module for controlling the operating parameters of the welding machine and the viewing module wherein the control modules and the viewing modules may be mounted in a helmet. A master control module is provided for remotely controlling a plurality of control modules wherein each control module controls a viewing module. Each pair of control module and viewing ,module controlled by the master control module may be mounted in a helmet. | 06-10-2010 |
| 20100176104 | METHOD AND APPARATUS FOR ADAPTIVE GMAW SHORT CIRCUIT FREQUENCY CONTROL AND METHOD OF HIGH DEPOSITION ARC WELDING - An electric arc welding device for performing a pulse welding process by a current between an advancing electrode and workpiece where the welder comprises a short detecting circuit for creating a short signal upon occurrence of a short circuit between the advancing electrode and the workpiece and a boost circuit to create a plasma boost pulse after the short circuit is cleared during the time period when the welder is not outputting the peak pulse current. The peak pulse current to background current ratio is high and the duration of the peak pulse is short. | 07-15-2010 |
| 20100224606 | SHORT CIRCUIT DETECTION SYSTEMS AND METHODS - A constant voltage (CV) welding process power supply is provided. The power supply includes a controller configured to detect a short circuit event in a CV welding process and increase a welding current based upon a periodically computed voltage error and a first gain to attempt to clear the short circuit event. The controller is further configured to detect whether the short circuit event has cleared after the first current increase. If the short circuit event has not cleared, the controller increases the welding current based upon the periodically computed voltage error and a second gain higher than the first gain. | 09-09-2010 |
| 20100224607 | WELDING PROCESS EMPLOYING VARIABLE MINIMUM CURRENT - A constant voltage (CV) welding process power supply including a controller that implements a variable minimum current is provided. The controller is configured to periodically compute a running current value during a welding operation. The controller is also configured to periodically compute a minimum current value based on a difference between the running current value and a preset offset value, wherein the preset offset value remains constant throughout the welding operation. | 09-09-2010 |
| 20100270278 | AUTOMATIC BURNBACK CONTROL IN AN ARC WELDING SYSTEM - An arc welding system and method where burnback time (BBT) is correlated to wire feed speed (WFS). Means for feeding a wire electrode toward a workpiece and means for selecting a wire feed speed (WFS) are provided. Also, means for automatically adjusting a burnback time (BBT) of the wire electrode in response to the selected wire feed speed (WFS) is provided. | 10-28-2010 |
| 20100308026 | WELDING POWER SUPPLY WITH DIGITAL CONTROL OF DUTY CYCLE - A welding power supply including power conversion circuitry adapted to receive a primary source of power, to utilize one or more power semiconductor switches to chop the primary source of power, and to convert the chopped power to a welding output is provided. The provided welding power supply includes a pulse width modulated (PWM) digital controller including gate drive circuitry that generates a PWM output signal that controls the switching of the one or more power semiconductor switches. The PWM output signal includes a duty cycle term corrected for one or more sources of error in the welding system. | 12-09-2010 |
| 20100308027 | SYSTEMS AND DEVICES FOR DETERMINING WELD CABLE INDUCTANCE - Systems, devices, and methods for measuring a peak to peak switching ripple in a voltage present on welding output terminals are provided. The systems, devices, and methods may also be utilized to determine, during a welding operation, a weld cable inductance based on the measured peak to peak voltage ripple. | 12-09-2010 |
| 20110011842 | Method and apparatus for receiving a universal 3 phase input voltage in a welding power source - A method and apparatus for providing 3 phase input to a welding type power source is disclosed. The power source is capable of receiving wide range of 3 phase input voltage and rectifies the ac input into a dc power capable for welding application. The power source consist of two stages, the first stage is a phase shifted full bridge inverter running near to maximum duty cycle to minimize the losses in the converter which is followed by the second stage buck chopper. This buck chopper deals with wide voltage levels and incorporates a power factor correction circuit | 01-20-2011 |
| 20110049115 | AUXILIARY POWER SUPPLY FOR A WELDING MACHINE - A electric welding machine having an auxiliary power output, and a method for controlling the auxiliary power output on a welding machine is provided. In one embodiment, the system includes a main transformer having a first secondary winding in circuit communication with a welder power output and a second secondary winding in circuit communication with an auxiliary power supply having an auxiliary power output. The auxiliary power supply includes an input for monitoring the welder power output to determine if the welder power output is on; circuitry for determining whether a surge or spike in demand is present at the auxiliary power output; and circuitry for limiting the available power to the auxiliary power output if certain conditions are satisfied. One method includes monitoring the demand on an auxiliary power output, monitoring a welding power output, determining whether there is a spike in the demand on the auxiliary power output that is above a first limit, and reducing the available power to the auxiliary power output if the spike is above the first limit and the welding power output is energized. | 03-03-2011 |
| 20110180522 | SMART GRID WELDING SYSTEM - Welding system and method permit exchange of data with Smart Grid monitors and/or controllers. The welding systems include a welding power supply configured to convert power between the power grid and the welding power supply. A grid interface cooperates with control circuitry to transmit data to and/or from the grid monitors and/or controllers on the grid side. The control circuitry may control operation of the welding power supply based upon data from the grid. The system may include power generation devices (e.g., engine-drive generators) and energy storage devices (e.g., batteries). The control circuitry may control operation of such devices, the exchange of power between them, and the draw of power from the grid or the application of power to the grid based upon the data exchanged with the grid monitors and/or controllers. | 07-28-2011 |
| 20110204032 | Automatic shutoff system and method for workspace enclosure environment - An emergency shut off system for a workspace enclosure, wherein a sensor array is provided for detecting hazardous conditions within the workspace enclosure. A control module is coupled to the sensor array. A pneumatic shutoff line is provided, extending between the control module and a hot work apparatus used in connection with the workspace enclosure. The hot work apparatus is responsive to pressurization of the pneumatic shutoff line to remain in an operational state. The control module is responsive to a signal from the sensor array indicating the existence of a hazardous condition inside the workspace enclosure to depressurize the pneumatic shutoff line. The hot work apparatus is responsive to depressurization of the shutoff line to be rendered non-operational. In one embodiment, an external sensor is provided for detecting a hazardous condition outside of the workspace enclosure. A second pneumatic shutoff line is provided between the control module and an intake blower for the workspace enclosure. The intake blower is responsive to pressurization of the second shutoff line to remain operational. In response to detection of an external hazardous condition, the external sensor triggers the control module to depressurize the second pneumatic shutoff line. The intake blower is responsive to depressurization of the second pneumatic shutoff line to be rendered non-operational. | 08-25-2011 |
| 20110204033 | WELDING SYSTEM WITH TORQUE MOTOR WIRE DRIVE - A welding system for welding with wire is disclosed that includes a torque motor in a wire feeder and a pull motor in a welding torch. A wire feed speed may be set by an operator at a power supply or on a wire feeder. Based upon calibration of the pull motor in the torch, upon startup of the welding operation, signals are provided to a pull motor and the torch in an open loop manner with respect to the speed of the pull motor, while the torque motor is driven to maintain a feed force on the welding wire to ensure that the pull motor has welding wire available for feeding. No other coordination is required between the torque motor and the pull motor. | 08-25-2011 |
| 20120006800 | WELD BEAD FEATURE COMMUNICATION SYSTEMS AND DEVICES - A welding system including an operator interface having a weld bead feature indicator and a weld parameter adjustment selector is provided. The weld parameter adjustment selector is adapted to receive a desired weld parameter adjustment from an operator. The welding system also includes control circuitry communicatively coupled to the operator interface and adapted to receive data encoding the desired weld parameter adjustment, to determine a change in a weld bead feature corresponding to the desired weld parameter adjustment, and to control the visual weld bead feature indicator to visually communicate the change in the weld bead feature to the operator. | 01-12-2012 |
| 20120074114 | CONSUMABLE ELECTRODE ARC WELDING METHOD AND CONSUMABLE ELECTRODE ARC WELDING DEVICE - If a short circuit does not occur during deceleration of a wire feed speed in forward feed of a welding wire before the wire feed speed reaches a predetermined wire feed speed, a cyclic change is stopped and the wire feed speed is constantly controlled at the first feed speed. If a short circuit occurs during forward feed at the first feed speed, deceleration from the first feed speed starts, and the cyclic change is resumed for welding. This achieves uniform weld bead without increasing spatters even if any external disturbance such as change of distance between a tip and base material occurs. | 03-29-2012 |
| 20120097655 | METHOD TO CONTROL AN ARC WELDING SYSTEM TO REDUCE SPATTER - An electric arc welder and a method for performing a pulse welding process producing reduced spatter. The welder produces a current between an advancing electrode and a workpiece. The welder includes a short-detecting capability for detecting a short condition upon occurrence of a short circuit between the advancing electrode and the workpiece. The welder may also include a switching module in the welding circuit path of the welder having an electrical switch and a resistive path. Times of occurrence of short intervals can be tracked and a blanking signal can be generated based on the tracked short intervals to anticipate a next short interval in a next pulse period of the pulsed welding process. The blanking signal can be used to reduce a welding current in the welding circuit path by introducing additional resistance into the welding circuit path via the switching module, for example. | 04-26-2012 |
| 20120132632 | METHOD FOR DISCONNECTING A SHORT CIRCUIT DURING SHORT-ARC WELDING AND WELDING DEVICE FOR SHORT-ARC WELDING - The invention relates to a method for disconnecting a short circuit ( | 05-31-2012 |
| 20120152923 | SPOOL GUN ADAPTER - The present disclosure provides a welding system having a welder, a welding gun, and a welding gun adapter, the welding gun being a spool gun with an attached motor. The welding gun adapter receives welding power from the welder, and converts it to output power suitable for driving the motor of the welding gun. The welding gun adapter also uses received welding power from the welder for control power. The present techniques allow for the use of welding guns requiring motor power to be used with any ordinary welder. | 06-21-2012 |
| 20120175356 | ENERGY CONVERSION METHOD AND APPARATUS, AND WELDING DEVICE - The invention relates to a method and an apparatus for converting the energy of an energy storage ( | 07-12-2012 |
| 20120193334 | FUME EXTRACTOR FOR WELDING APPLICATIONS - A welding system having a welding power supply coupled to a fume extractor is provided. The fume extractor may be coupled to control circuitry configured to operate the welding power supply. The control circuitry may be configured to begin, terminate or modify the operation of the fume extractor prior to the establishment of a welding arc, after the termination of the welding arc, or both. The control circuitry may be further configured to modify the operation of the fume extractor based upon a type of welding process used. | 08-02-2012 |
| 20120234812 | METHOD AND APPARATUS TO MAINTAIN WELDING CURRENT TO COMPENSATE FOR DETERIORATION OF WELDING CONTACT TIP - A method of maintaining welding current to compensate for deterioration of a welding contact tip includes: monitoring in real time at least one of welding current and welding voltage during welding production; comparing the at least one of the welding current and the welding voltage to a reference value for a given set of parameters; and adjusting one or more welding parameters in real time to increase energy output in response to the comparison so that consistent energy is consumed across the welding arc, whereby the quality of the welding production is maintained as the welding contact tip is consumed. | 09-20-2012 |
| 20120248080 | WELDING ELECTRODE STICKOUT MONITORING AND CONTROL - Stickout of a welding electrode wire from a welding torch is determined during welding, and based upon a welding parameter, such as welding current. Different relationships are used for the determination depending upon whether the welding wire is in a short-circuit condition or an arc condition. The stickout may be converted to a standardized unit of measure to make it readily understandable to an operator. The stickout may be logged and associated with other parameters and information, such as workpiece, operator, welding system, date and time. The stickout may be used as the basis for an alarm or a disabling operation. Moreover, the stickout may be provided on a readout for the operator. It may also be used as a basis for controlling a wire feeding apparatus that retracts the welding wire to a desired stickout following a weld. | 10-04-2012 |
| 20120298642 | INITIATION OF WELDING ARC BY RESTRICTING OUTPUT - Systems and methods for providing an improved start in a welding process are provided. The system may include a power circuit and a control circuit. The power circuit can generate a welding output power. The control circuit may be in communication with the power circuit to control, during the start of the welding process, at least one welding parameter until the control circuit determines that welding energy output exceeds an energy output threshold. | 11-29-2012 |
| 20120298643 | METHOD FOR SELECTION OF WELD CONTROL ALGORITHMS - A system and method for generating a weld are provided. The system receives a selection of a magnitude of a voltage. The system selects a first weld control algorithm when the magnitude of the voltage is in a first range of values. The system may also select a second weld control algorithm when the magnitude of the voltage is in a second range of values. The system may generate welding output power based on the first and second weld control algorithms. | 11-29-2012 |
| 20120325791 | WELDING SYSTEM WITH CONTROLLED WIRE FEED SPEED DURING ARC INITATION - A welding system including a power supply, a torch electrically connected to said power supply, a wire feeder that provides a welding consumable to the torch, a controller that communicates with a motor associated the wire feeder and the power supply. The controller obtains a wire feed speed of said motor as it accelerates from a run-in speed to a pre-set speed and controls the power supplied to the torch based on this wire feed speed to reduce stubbing or spattering during arc initiation. | 12-27-2012 |
| 20130015170 | METHOD AND SYSTEM TO INCREASE HEAT INPUT TO A WELD DURING A SHORT-CIRCUIT ARC WELDING PROCESS - A method and a system to control heat input to a weld during an arc welding process. A series of electric arc pulses are generated between an advancing welding electrode and a metal workpiece using an electric arc welding system capable of generating an electric welding waveform to produce the electric arc pulses. The welding waveform has droplet transfer pulses and at least one heat input pulse which is generated during a background portion of the waveform. The at least one heat-increasing current pulse is above the background current level and has a polarity opposite of that of the droplet transfer pulse. | 01-17-2013 |
| 20130043226 | SYSTEM AND DEVICE OPERATING USING A WELDING POWER BUS - A system and device operating using a welding power bus are provided. One welding power supply includes control circuitry configured to control the operation of the welding power supply and power conversion circuitry configured to convert input power to output welding power. The welding power supply also includes welding terminals configured to receive the output welding power from the power conversion circuitry and to provide the output welding power to a device that does not use the welding power for a welding operation. The control circuitry is configured to adapt the output welding power to the device. | 02-21-2013 |
| 20130119036 | SYSTEMS AND METHODS FOR ASSOCIATING DATA TO A WELDER POWER SOURCE - The invention described herein generally pertains to a system and method for welder system that associates a set of data to a portion of data collected by a welder power source based on a first indicia and a second indicia. The welder system includes an input device that collects a first input based on the first indicia to identify a type of the set of data and a welder power source to relate the set of data. Moreover, the input device collects a second input based on the second indicia that indicates a location for the set of data. Based on the first indicia and the second indicia, the set of data can be associated with a welder power source or a portion of data collected by the welder power source. | 05-16-2013 |
| 20130119037 | SYSTEMS AND METHODS FOR UTILIZING WELDER POWER SOURCE DATA - The invention described herein generally pertains to a system and method for aggregating welder parameters (e.g., power consumption parameter, welder process parameters, among others) from a first environment that includes one or more welder power sources and utilizing a portion of the aggregated welder parameters in at least one of a disparate welder power source or a second environment that includes one or more welder power sources. A parameter from a first welder power source in a first environment can be aggregated and collected in which a processing component evaluates such parameter to configure an additional welder power source in the first environment or one or more welder power sources in a second environment. | 05-16-2013 |
| 20130126498 | ADAPTIVELY CONTROLLED SHORT CIRCUITING DRAWN-ARC FASTENER WELDING - In one aspect, there is disclosed a drawn arc fastener welding process that includes the steps of providing a fastener positioned in a welding tool, providing a weld control, providing a work piece, contacting the fastener against the work piece, energizing a pilot current, lifting the fastener from the work piece and drawing a pilot arc, energizing a main arc for a predetermined duration, short circuiting the fastener relative to the work piece, cyclically redrawing an arc and short circuiting the fastener relative to the work piece at least one additional cycle, dynamically sensing an arc voltage and calculating a derivative signal of the voltage over time for each drawn arc and short circuit of the cycle wherein a position and motion of the fastener relative to the work piece is controlled and the energizing of the arc is controlled, and plunging the fastener into the work piece forming a weld. | 05-23-2013 |
| 20130126499 | SYSTEMS AND METHODS FOR DIAGNOSING SECONDARY WELD ERRORS - A controller for a welding system adapted to determine a value of a weld secondary parameter across a weld secondary component based on a sensed parameter is provided. The controller may also be adapted to compare the determined value to a reference value range and to alert a user to a presence and location of a weld secondary error when the determined value is outside the referenced value range. | 05-23-2013 |
| 20130200055 | POWER SOURCE AND WIRE FEEDER MATCHING - The subject embodiments relate to identifying connectivity of a power source and a wire feeder within a weld system. The weld system includes at least one wire feeder, which delivers a welding consumable to a weld location. At least one power source is connected to deliver power to each wire feeder. An input component is associated with each wire feeder, the input component is utilized to initiate a data transmission between the wire feeder and the power source connected to the wire feeder. An output component is associated with each power source. The output component generates an output in response to data transmission initiated by the input component to identify connectivity of the wire feeder and the power source. | 08-08-2013 |
| 20130200056 | TORCH FOR ELECTRIC ARC WELDING SYSTEM - A torch for connection to an electric arc welding system having a wire feeder, a power source and a weld process controller for the power source. The torch being connected to the front end of a welding gun, which gun has a rear end with a first unique component of a connector. The welding system has a second component of the connector matching the first component. The gun has a communication channel extending from the torch to the first component for transmitting data to the welding system through the connector. The torch has a memory with an identification code outputted on the communication channel to the first component and the system has a decoder circuit connected to the second component and responsive to a selected identification code. | 08-08-2013 |
| 20130220986 | AUXILIARY POWER SUPPLY FOR A WELDING MACHINE - A electric welding machine having an auxiliary power output, and a method for controlling the auxiliary power output on a welding machine is provided. In one embodiment, the system includes a main transformer having a first secondary winding in circuit communication with a welder power output and a second secondary winding in circuit communication with an auxiliary power supply having an auxiliary power output. The auxiliary power supply includes an input for monitoring the welder power output to determine if the welder power output is on; circuitry for determining whether a surge or spike in demand is present at the auxiliary power output; and circuitry for limiting the available power to the auxiliary power output if certain conditions are satisfied. One method includes monitoring the demand on an auxiliary power output, monitoring a welding power output, determining whether there is a spike in the demand on the auxiliary power output that is above a first limit, and reducing the available power to the auxiliary power output if the spike is above the first limit and the welding power output is energized. | 08-29-2013 |
| 20130228558 | Work current switching to eliminate arc blow - A system and method of welding is provided where welding power supply has a first output electrically coupled to a welding electrode and a second output electrically coupled to a switching mechanism. The welding power supply provides a welding current through either of the first and second outputs to weld at least one work piece. The switching mechanism has at least a first and second switch position, where the first switch position is coupled to a first position on the at least one work piece and the second switch position is coupled to a second position on the at least one work piece, which is remote from the first position. During welding the switching mechanism switches between the first and second switch positions to change a current path for the welding current during through the at least one work piece. | 09-05-2013 |
| 20130256289 | SYSTEM AND METHOD FOR DETERMINING ATTACHMENT AND POLARITY OF A WELDING ELECTRODE - A welding system includes a power source configured to generate power and deliver the power to a welding electrode. The power source comprises a positive stud and a negative stud. The welding system also includes control circuitry configured to determine whether the welding electrode is properly connected to the positive and negative studs of the power source. | 10-03-2013 |
| 20130256290 | WELDING POWER SUPPLY WITH DIGITAL CONTROL OF DUTY CYCLE - A welding power supply including power conversion circuitry adapted to receive a primary source of power, to utilize one or more power semiconductor switches to chop the primary source of power, and to convert the chopped power to a welding output is provided. The provided welding power supply includes a pulse width modulated (PWM) digital controller including gate drive circuitry that generates a PWM output signal that controls the switching of the one or more power semiconductor switches. The PWM output signal includes a duty cycle term corrected for one or more sources of error in the welding system. | 10-03-2013 |
| 20130327747 | WELDING DEVICE FOR REMOTELY CONTROLLING WELDING POWER SUPPLY SETTINGS - A welding device for remotely controlling welding power supply settings is provided. One embodiment of the welding device includes a welding pendant having a control panel configured to control a plurality of settings of a welding power supply. The control panel is not part of the welding power supply and the plurality of settings includes a welding current output by the welding power supply. The welding pendant also includes a welding power input configured to receive welding power and data from the welding power supply via a welding power cable. The welding power is combined with the data such that the data is provided over the welding power cable. | 12-12-2013 |
| 20130327748 | WELDING SYSTEM INRUSH CURRENT CONTROL SYSTEM AND METHOD - A welding component, such as a remote pendant or wire feeder includes an inrush current control circuit. The welding component may be coupled to a welding power source when the power sources is live and outputting power. Power is stored in the component, such as in capacitors, for operation of a local power supply, such as for an operator interface, display, and the like. Upon connection to the power source, the current application to the capacitors may be delayed to reduce or prevent arcing. The inrush current may also be limited, as may the voltage, to similarly reduce arcing and to provide additional benefits. | 12-12-2013 |
| 20130334188 | POWER ROUTING FOR WELDING SUITE - The invention described herein generally pertains to an apparatus for a welding operation having two or more welding tools and a switching device which directs the current to the appropriate welding device for a welding operation. One or more switch devices having two or more settings can be employed to control which device or devices receive current. Moreover, varying remote control techniques can be utilized to control a welding power source or other operatively coupled devices. Powered devices other than welding tools may be used with the switch in embodiments. | 12-19-2013 |
| 20140001167 | WELDING SYSTEM UTILIZING A DISTRIBUTED POWER BUS | 01-02-2014 |
| 20140008342 | APPARATUS AND METHOD FOR ENERGY REPLACEMENT IN A WELDING WAVEFORM DURING WELDING - A system and method is provided which uses a power supply which receives an input signal and provides an output signal to an electrode, where the output signal generates an arc between the electrode and at least one workpiece, and the output signal has a desired output power profile. The power supply has at least an output power circuit which determines an output power of the output signal, a power differential calculator which determines a difference between the determined output power and the desired output power profile, and a waveform generator which changes a power output of the output signal based on the determined difference between the desired output power profile and the determined output power. | 01-09-2014 |
| 20140021182 | APPARATUS AND METHOD FOR MODULATING HEAT INPUT DURING WELDING - A system and method is provided in which a welding system modulates the heat input into a weld joint during welding by changing between a high heat input welding waveform and a low heat input welding waveform. The system can utilize detected weld joint geometry and thickness to vary the utilization of the high heat and low heat waveform portions to change the weld bead profile during welding. Additionally, the wire feed speed is changed with the changes between the high heat input and low heat input portions of the welding waveform. | 01-23-2014 |
| 20140042138 | HOT-WIRE WELDING POWER SUPPLY - A low voltage, low inductance power supply for supplying a current through a filler wire in order to resistance-heat at least an extended portion of the filler wire. The power supply is configured to have an output inductance in a range of 40 to 70 micro henries, a saturation current in a range of 20 to 50 amps, and an open circuit voltage that is less than or equal to 13 volts. | 02-13-2014 |
| 20140131331 | SYSTEMS AND METHODS PROVIDING ARC RE-IGNITION FOR AC ARC WELDING PROCESSES - Systems and methods providing an energy limited arc re-ignition voltage for AC arc welding processes to re-ignite an arc during polarity transitions. In arc welding power source embodiments, configurations of bridge and superposition circuits allow for the directional switching of the welding output current through the welding output circuit path and provide a voltage between the electrode and the workpiece of the welding output circuit path that is sufficient to re-ignite the arc during polarity transition of the output current. The superposition circuit provides a capacitor for storing energy from a dedicated charging source which produces the voltage level for re-igniting the arc during the zero crossing of the output current in both polarities. | 05-15-2014 |
| 20140131332 | SYSTEMS AND METHODS TO FACILITATE THE STARTING AND STOPPING OF ARC WELDING PROCESSES - Systems and methods for facilitating the starting and stopping of arc welding processes, as well as for responding to events in mid-weld. Specially designed signals may be briefly applied between a welding electrode and a welding workpiece at the start and end of a welding process to gracefully and properly start and stop a weld. Furthermore, specially designed signals may be briefly applied in the middle of a welding process, if determined events occur, to counter the undesirable effects of the events. | 05-15-2014 |
| 20140166633 | WIRELESS SYSTEM CONTROL AND INVENTORY MONITORING FOR WELDING-TYPE DEVICES - A welding-type system is designed for wireless control and for inventory monitoring of welding consumables. The welding-type system includes a power source to produce a welding-type power, wherein the power source is operable in a plurality of operating modes. The welding-type system also includes a controller configured to set a plurality of operating parameters within the power source, at least one wireless monitoring device coupled to the controller, and at least one welding-type consumable associated with a wireless transmitter. The wireless transmitter is configured to emit low frequency magnetic signals having consumable data encoded therein that is indicative of the at least one welding-type consumable. The wireless monitoring device is arranged to communicate with the wireless transmitter by receiving and transmitting the low frequency magnetic signals, with the low frequency magnetic signals being transmitted at a frequency of approximately 131 kHz. | 06-19-2014 |
| 20140231399 | CONNECTION FITTING AND CONNECTION METHOD USING THE SAME - Provided is connection fitting and method. The connection fitting is to connect each of two connection portions of a two-electrode-integrated welding torch unit to each of two attachment ports of a shock sensor unit while fixed to the connection portion using tubular fastening parts, comprising: a tubular fitting body including a first end to be connected to the unit and a second end having a spherical shaft-shaped connection portion with first and second partial spherical surfaces to be connected to the connection portion; a first bearing member having a first sliding surface slidable against the first partial spherical surface; a second bearing member having a second sliding surface slidable against the second partial spherical surface. The second bearing member has a sliding contact portion having an outer diameter smaller than an inner diameter of the fastening parts and adapted to slidably contact an end surface of the connection portion. | 08-21-2014 |
| 20140251967 | ARC WELDING WITH WAVEFORM CONTROL FUNCTION - A power supply with a waveform control function is provided. The power supply includes a waveform type selector that selects a desired shape for an output waveform and a setpoint selector that sets an output setpoint for the power supply. The power supply further includes a waveform generator that generates a reference waveform signal. The waveform generator includes a target generation circuit that generates a plurality of target values corresponding to the reference waveform signal. The waveform generator also includes a transition circuit that performs a series of transitions between the plurality of target values to generate the reference waveform signal, and a ramp circuit that controls a ramp speed of at least one transition of the series of transitions based on the desired shape. The generation of a target value corresponding to a peak value of the reference waveform signal is based on at least the output setpoint. | 09-11-2014 |
| 20140251968 | ARC WELDING WITH SYNCHRONIZED HIGH FREQUENCY ASSIST ARC INITIATION - A method of and system for controlling high frequency arc initiation in a power supply is provided. The power supply includes an output circuit that outputs at least one of a voltage waveform and a current waveform. High frequency, high voltage pulses are induced across a gap between an electrode and a workpiece to create an arc. The method and system further include monitoring at least one of a voltage reading and a current reading across the gap to determine a condition of the arc and controlling the high frequency, high voltage pulses based on the condition of the arc and the type of process, which can be, e.g., SMAW, GTAW, GMAW, FCAW, etc. | 09-11-2014 |
| 20140251969 | Automated System for Machine Set-Up of Welding Power Sources and Welding Systems - A system for re-configuring a welding system provides the ability to download applications to a welding power source or system, and to store the configuration data and applications to one or more of a series of welders, thereby simplifying configuration and re-configuration of power sources. | 09-11-2014 |
| 20140263237 | METHOD AND SYSTEM OF WELDING WITH A POWER SUPPLY HAVING A SINGLE WELDING MODE - A welding power supply and method are provided with a single welding mode in its controller such that the power supply can change from full DCEN output to AC output to a full DCEP output without having to change welding modes. | 09-18-2014 |
| 20140263238 | HYBRID WELDING CONTROL TECHNIQUE - A hybrid welding system is provided. In one embodiment, the welding system includes an engine-driven generator, an energy storage device, a contactor, and a controller. The controller may be configured to control delivery of weld power from the generator when a commanded output is below a threshold level, and from both the generator and the energy storage when the commanded output is above the threshold level. Closing of the contactor enables the energy storage device to contribute to weld power during welding operations and to be charged by the generator output independent of charging between weld operations. Additional hybrid welding systems and methods are also disclosed. | 09-18-2014 |
| 20140263239 | SYSTEM FOR AND METHOD OF NARROW-GROOVE JOINING OF METALS - A system and method is provided for narrow groove joining of metals. The method includes feeding a wire to a weld joint formed by the metals to be joined and transmitting a welding current through a length of the wire. The method also includes creating a molten puddle in the weld joint with the welding current. The method further includes performing a low heat transfer process on the wire for a predetermined low heat duration to transfer a first portion of the wire to the molten puddle, and performing a high heat transfer process on the wire for a predetermined high heat duration to transfer a second portion of the wire to the molten puddle. The low heat transfer process creates the molten puddle at a root of the weld joint. The high heat transfer process creates an arc that climbs sidewalls of the weld joint and the molten puddle follows the arc up the sidewalls to a top of the weld joint. | 09-18-2014 |
| 20140263240 | Method and Apparatus For Providing Welding Power - A method and apparatus for providing welding type power is disclosed. A welding type power supply includes an input circuit, a controller and an output circuit. The input circuit receives an input power signal and provides an intermediate power signal. The output circuit receives the intermediate power signal and provides a welding type power output. The output circuit has an inverter with at least two inverter switches, and a clamp circuit that limits the voltage across the inverter. The clamp circuit captures and buffers the excess energy, and returns the excess energy to an input of the inverter over a plurality of switching cycles. The controller has control outputs connected to the input circuit and the output circuit, to control them. | 09-18-2014 |
| 20140360995 | ARC WELDING APPARATUS, ARC WELDING SYSTEM, AND ARC WELDING METHOD - An arc welding apparatus includes: a driver for advancing and retreating a welding consumable with respect to a workpiece to generate a short circuit condition and an arc condition; a state detector for detecting respective starts of the short circuit condition and the arc condition based on a voltage between the workpiece and the welding consumable; a time detector for detecting that an elapsed time from the start of the short circuit condition reaches a reference time using a time shorter than an estimated continuation time of the short circuit condition as the reference time; and a power controller for reducing an electric current between the workpiece and the welding consumable corresponding to a state where the elapsed time reaches the reference time and raising the electric current after the start of the arc condition. | 12-11-2014 |
| 20140360996 | ARC WELDING APPARATUS, ARC WELDING SYSTEM, AND ARC WELDING METHOD - An arc welding apparatus includes: a welding-condition acquirer configured to acquire a welding condition; a heat-input calculator configured to calculate a required heat input corresponding to the welding condition; a frequency setter configured to set a smaller frequency for a short circuit condition and an arc condition corresponding to an increase in the required heat input; and a driver configured to repeatedly perform a process at the frequency, the process including advancing and retreating a welding consumable with respect to a workpiece to generate the short circuit condition and the arc condition. | 12-11-2014 |
| 20140374398 | WELDING POWER SUPPLY EXTENDED RANGE SYSTEM AND METHOD - A power supply for welding, cutting and similar operations includes one or more power converters that are controlled by PWM signals applied by control circuitry. The signals may be applied for a period greater than 50% duty cycle. The duty cycle may be determined by monitoring power or current draw by a welding or cutting operation load. Where more than one converters is used, each may have the same or different duty cycles, and each may be extended beyond a 50% maximum. | 12-25-2014 |
| 20150034618 | WELDING APPARATUS COMPRISING A WELDING ASSISTANCE - A welding apparatus comprises a welding unit for welding a workpiece. The welding unit comprises a welding assistance system for generating control commands by evaluating a voice dialogue performed with a welder, and a weld control unit for setting weld control parameters in dependence upon the control commands. A welding system includes a plurality of such welding apparatuses, wherein the welding assistance system is connected to the weld control units of the welding apparatuses via a data network. A method for welding a workpiece by means of a welding unit comprises providing a welding assistance system, evaluating a voice dialogue performed with a welder operating the welding unit, producing control commands for a weld control unit, and setting weld control parameters in dependence upon the produced control commands. | 02-05-2015 |
| 20150041449 | ARC-WELDING METHOD AND ARC-WELDING APPARATUS - An arc-welding method in welding by repeating a short circuit and an arc. When the sign of opening of the short circuit is detected, the welding current is reduced from a first current value at the detection of the sign to a second current value, which is lower than the first current value. When the opening of the short circuit is detected, a pulse current having a peak value higher than the first current value is supplied at a plurality of times in the arc period. This suppresses porosities and spatters when galvanized steel sheets are welded. | 02-12-2015 |
| 20150060426 | Method and Apparatus For Providing Welding Type Power With Balanced Bus - A welding-type power supply includes a controller, bus (that can, but need not be preregulated), and an output converter. The controller has a preregulator control output and an output converter control output. The controller may receive bus feedback indicative of a plurality of bus voltages. A bus voltage balancing module in the converter includes a scaled correction module responsive to the bus feedback signal, and the converter control output is responsive to the bus voltage balancing module. The controller may receive load feedback indicative of a load output, have a bus voltage balancing module that includes a load proportional gain module responsive to the load. | 03-05-2015 |
| 20150069031 | METHOD FOR PERFORMING A WELDING PROCESS, WELDING DEVICE AND WIRE COIL FOR SUCH A WELDING DEVICE - A method and a welding device for performing a welding process on a workpiece by a welding torch, uses a melting welding wire, which is arranged on a wire coil and may be supplied to the welding torch via a hose package, wherein different welding wires and different welding parameters are used depending on the geometry of the workpiece. A welding wire formed by the different interconnected welding wires in lengths depending on the geometry of the workpiece is arranged on the wire coil, so the welding process may be performed without interruptions using the different welding wires and the different welding parameters by supplying to the welding torch the welding wire formed by the different interconnected welding wires from the wire coil. | 03-12-2015 |
| 20150076128 | WELD MONITORING APPARATUS - A welding apparatus for applying consecutive welding beads during a welding operation includes a welding unit including a torch head and a power circuit. The welding apparatus further includes a first pyrometer and a second pyrometer positioned respectively at a first and second pre-determined distance from a tip portion of the torch head, the first and second pyrometers are configured to respectively generate a first temperature signal and a second temperature signal indicative of temperatures of a portion of successive welds. The welding apparatus further includes a controller configured to receive the first temperature signal and the second temperature signal, determine a difference between the first and second temperature signals, set a predetermined threshold based, at least in part, on the determined difference, and adjust a welding parameter of the power circuit, wherein the adjusted welding parameter is lesser than the predetermined threshold. | 03-19-2015 |
| 20150090703 | METHOD AND SYSTEM TO USE COMBINATION FILLER WIRE FEED AND HIGH INTENSITY ENERGY SOURCE FOR WELDING WITH CONTROLLED ARCING FREQUENCY - Systems and methods consistent with embodiments of the present invention are directed to depositing a consumable onto a workpiece using a hot-wire welding technique which employs a combination of hot wire and arc welding. The waveform creates arc events during the hot wire welding operation to add/control heat in the welding process. The hot-wire welding process can be used by itself, with a laser or in conjunction with other welding processes. | 04-02-2015 |
| 20150096965 | ARC WELDING CONTROL METHOD - As a conventional problem, welding on surface-treated material, such as a zinc-coated steel plate, considerably generates air holes including blowholes and also generates lots of spatters. Present invention provides a method of controlling arc welding performed in a manner that a short-circuit period, in which a short circuit is generated between a welding wire and an object to be welded, and an arc period, in which an arc is generated after release of the short circuit, are repeated alternately. According to the method, welding current is increased from an arc-regeneration-before current to a first welding current at a detection of release of the short circuit such that an increase gradient of the welding current becomes not less than 750 A/msec. This suppresses generation of air holes and spatters in welding work on a surface-treated material, such as a zinc-coated steel plate. | 04-09-2015 |
| 20150129566 | APPARATUS AND METHOD FOR SHORT CIRCUIT WELDING WITH AC WAVEFORM - A system and method is provided in which a surface tension transfer welding function is employed where the welding waveform switches polarity during welding when a short circuit event is detected. | 05-14-2015 |
| 20150136745 | System and Method for Welding Using Super Capacitors - Disclosed herein is a capacitive discharge welder that comprises a series of super capacitors (or ultra-capacitors) used as a power source. The capacitive discharge welder disclosed herein also comprises a dual function circuit that serves as an emergency stop circuit that is capable of redirecting or disconnecting the weld path in certain applications and situations and a drain circuit to drain a filter capacitor. The capacitive discharge welder disclosed herein is configured to use the super capacitor power supply in a direct discharge configuration as a CD welder. Additionally, the super capacitors are switched at frequency through a filter capacitor to produce a shaped DC welding waveform suitable for a wide variety of welding applications. | 05-21-2015 |
| 20150136746 | SYSTEMS AND METHODS FOR SELECTING A WELDING PROCESS - A method includes detecting whether a wire feeder is in communication with a welding power supply. The method also includes detecting a current welding process of the welding power supply if the wire feeder is in communication with the welding power supply. The method includes determining, at the wire feeder, a welding output polarity. The method also includes setting a new welding process based on the current welding process and the welding output polarity without a user selecting the new welding process. | 05-21-2015 |
| 20150306692 | SMART GRID WELDING SYSTEM - Welding system and method permit exchange of data with Smart Grid monitors and/or controllers. The welding systems include a welding power supply configured to convert power between the power grid and the welding power supply. A grid interface cooperates with control circuitry to transmit data to and/or from the grid monitors and/or controllers on the grid side. The control circuitry may control operation of the welding power supply based upon data from the grid. The system may include power generation devices (e.g., engine-drive generators) and energy storage devices (e.g., batteries). The control circuitry may control operation of such devices, the exchange of power between them, and the draw of power from the grid or the application of power to the grid based upon the data exchanged with the grid monitors and/or controllers. | 10-29-2015 |
| 20150375329 | MODULAR DIRECT CURRENT POWER SOURCE - A modular direct current power source is provided. One welding power supply system includes a plurality of hysteretic buck converters coupled in parallel. The hysteretic buck converters are configured to receive a common input and to provide combined output power to a common load based upon the common input. | 12-31-2015 |
| 20160101480 | ELECTRODE DIAMETER SENSING CONSUMABLES - The present disclosure provides a welding system capable of detecting a size of a welding material and automatically implementing appropriate arc starting parameters. The welding system includes a welder, a welding torch, and a sensor, in which the sensor is configured to detect the size of the welding material, directly or indirectly. The welder is automatically configured to produce an arc having the arc starting parameters determined from the size of the welding material detected by the sensor. The present disclosure decreases operational error by automatically changing arc starting parameters and/or welding parameters based upon a change in welding material size, rather than requiring an operator to manually change the arc starting parameters and/or welding parameters. | 04-14-2016 |
| 20160129521 | POWER SOURCE FOR REDUCING ELECTROMAGNETIC INTERFERENCE AND POWER CONSUMPTION - A welding power source configured to receive an input power includes a plurality of components and supervising circuitry configurable in a plurality of modes. The plurality of components include power conversion circuitry and background power supply. The supervising circuitry is configured to distribute the input power to the plurality of components based at least in part on a mode of the plurality of modes. The plurality of modes include a welding mode configured to distribute the input power to the power conversion circuitry and to the background power supply. The plurality of modes also include a monitoring mode configured to distribute the input power to the background power supply, and to not distribute the input power to the power conversion circuitry. | 05-12-2016 |
| 20160144443 | WELDING SYSTEM - The invention described herein generally pertains to a system and method related to reducing magnetic arc blow during a welding operation performed by a welding system. In accordance with one embodiment of the invention, a welding system including a waveform generator generates a waveform that is switched from a positive current to a negative current, while passing through zero, in a step-wise fashion to resist the magnetic field within the material (e.g., the workpiece). In accordance of another embodiment of the invention, the welding system includes a nickel flux cord welding wire. | 05-26-2016 |
| 20160167151 | REDUCED ENERGY WELDING SYSTEM AND METHOD | 06-16-2016 |
| 20160175966 | ENERGY STORAGE CADDY FOR WELDING SYSTEM | 06-23-2016 |
| 20160175969 | SYSTEMS AND METHODS FOR ADAPTIVELY CONTROLLING WELD CABLE COMMUNICATIONS | 06-23-2016 |
| 20190143435 | AUTOMATED SYSTEM FOR MACHINE SET-UP OF WELDING POWER SOURCES AND WELDING SYSTEMS | 05-16-2019 |
| 20190143436 | Automatic Process and/or Set Up Of Welding Type System | 05-16-2019 |
