Class / Patent application number | Description | Number of patent applications / Date published |
219121440 | Methods | 49 |
20080302767 | Plasma Cutting Machine - A plasma cutting machine cuts stainless steel with good quality. An inactive gas (nitrogen) is supplied as a plasma gas, and a combustible gas (propane) having a specific gravity higher than that of air and having a reducing ability or a mixed gas of the combustible gas (propane) and an inactive gas (nitrogen) is supplied as an assist gas to a plasma torch. The combustible gas (propane) contained in the assist gas is not supplied in the pre-flow interval and after-flow interval, and is supplied only in the plasma arc generation interval. | 12-11-2008 |
20090026179 | Thermal Cutting Method - The invention pertains to a thermal cutting method, in which a cutting gas is introduced into a cutting nozzle and guided onto the work piece to be processed by means of the cutting nozzle, wherein the invention is characterized in that multiple changes of the cutting gas composition are realized during the cutting process. | 01-29-2009 |
20090032503 | Thermal Cutting Method - The invention pertains to a thermal cutting method, in which a cutting gas is introduced into a cutting nozzle and guided onto the work piece to be processed by means of the cutting nozzle, and in which the volumetric flow rate of the cutting gas is at least reduced in a periodically repeating fashion, wherein the invention is characterized in that the method is carried out with a periodicity that has a frequency between 700 Hz and 8000 Hz. | 02-05-2009 |
20090039059 | Articulated Thermal Processing Torch - A thermal processing torch can include a torch housing having a head portion pivotally coupled relative to a body portion with a joint portion. The torch also can include a pivotal connector simultaneously pivoting about a common axis with the joint portion of the torch housing. The pivotal connector can include an electrically conductive wall conducting an electrical current between the body portion of the torch housing and the head portion of the torch housing. The pivotal connector can also include a passage provide a processing gas between the body portion of the torch housing and the head portion of the torch housing. | 02-12-2009 |
20090200276 | WATER-VAPOR PLASMA TORCH, AND WEAR-DETECTION AND PROCESS-CONTROL METHOD TO BE USED WITH SUCH A WATER-VAPOR PLASMA TORCH - The invention relates to a water-vapor plasma torch ( | 08-13-2009 |
20090266799 | Method for Operating a Steam Plasma Burner and Steam Cutting Device - The invention relates to a method for operation of a steam plasma burner ( | 10-29-2009 |
20100018954 | ENHANCED PIERCING THROUGH CURRENT PROFILING - In general, the present invention provides a method of piercing a workpiece with a plasma arc torch of the type having a plasma gas flow path for directing a plasma gas through the torch and a secondary gas flow path for directing a secondary gas through the torch. The method comprises directing a flow of shield gas along a distal end portion of the plasma arc torch to deflect metal spatter generated from the piercing, and ramping a current provided to the plasma arc torch along a profile during piercing and controlling current ramp parameters as a function of a thickness of the workpiece and an operating current level, wherein the current ramp parameters comprise a length of time, a ramp rate, a shape factor, and a modulation. | 01-28-2010 |
20100155376 | High Quality Hole Cutting Using Variable Shield Gas Compositions - A method and apparatus for a plasma torch system having a plasma torch tip configuration that includes a nozzle, an electrode, and a control unit for controlling a composition of the shield gas flow, such that while cutting the contour the shield gas flow comprises a first shield gas composition and while cutting the hole the shield gas flow comprises a second shield gas composition. | 06-24-2010 |
20100155377 | Method And Apparatus For Cutting High Quality Internal Features And Contours - An automated method for cutting a plurality of hole features using a plasma arc torch system can be implemented on a computer numerical controller. The automated method can include the steps of: a) cutting a lead-in for a hole feature using a lead-in command speed based on a diameter of that hole feature and b) cutting a perimeter for the hole feature using a perimeter command speed greater than the corresponding lead-in command speed for the hole feature. The automated method can also include the step c) of repeating steps a) and b) for each additional hole feature having a same diameter or a different diameter. | 06-24-2010 |
20100176096 | Plasma Cutting Method And Plasma Cutting Apparatus - The present invention relates to a cutting method for cutting an upper edge and a lower edge of a cutting plane into a curved shape, when a cutting object is cut by supplying plasma gas to the periphery of an electrode of a plasma torch and ejecting plasma arc from a nozzle. In order to melt the upper edge and the lower edge of the cutting plane to form a curved shape, at least one condition selected from plural conditions including a cutting electric current, cutting speed, height of a plasma torch, angle of the plasma torch, and flow rate of plasma gas upon performing the vertical cutting for forming the upper edge and the lower edge of the cutting object substantially at right angles is changed. | 07-15-2010 |
20100213178 | INTERNAL PART FEATURE CUTTING METHOD AND APPARATUS - A method for cutting an internal feature in a workpiece using a plasma cutting system can include cutting in a first zone using at least one cutting parameter from a first cutting parameter set, which can include a first cutting current and/or a first speed. The method can include cutting in a second zone using at least one cutting parameter from a second cutting parameter set that can be different from the first cutting parameter set. The second cutting parameter set can include a second cutting current and/or a second speed. The method can also include cutting in a third zone using at least one cutting parameter from a third cutting parameter set, which can be different from the first cutting parameter set or the second cutting parameter set. The third cutting parameter set can include a third cutting current and/or a third speed. | 08-26-2010 |
20100301020 | PLASMA TORCH CUTTING DEVICE AND PROCESS - A method of operating a plasma arc torch system includes placing a work piece to be cut on a table of the plasma arc torch system, wherein at least a portion of the work piece has a planer surface facing away from the table. A plasma arc torch is positioned adjacent the planer surface of the work piece using a positioning apparatus, wherein the positioning apparatus has at least five degrees of freedom about which it can move the plasma arc torch relative the work piece for cutting the work piece on the table. The method further includes angling the torch relative the planer surface of the work piece such that the torch is held at an angle of between about 1 and about 4 degrees from perpendicular with the planer surface to back burn a produced kerf such that a kerf edge is perpendicular relative the planer surface of the work piece. Additionally, the planer surface of the work piece is calculated by contacting the work piece with the torch at least three times. | 12-02-2010 |
20110073573 | METHOD AND SYSTEM FOR GENERATING GRAPHIC ELEMENTS - A method for cutting a graphic into a graphic material is disclosed. The method includes automatically controlling a cutting device to cut a desired graphic shape into a graphic material and automatically adjusting the cutting depth of the cutting device between at least a shallower cutting depth and a deeper cutting depth substantially contemporaneously with the cutting the desired graphic shape into the material. | 03-31-2011 |
20110210100 | CONTROLLABLE CUT BY A PLASMA ARC TORCH - Embodiments of methods of controlling the shape of a cut on a workpiece using a plasma arc torch are provided. The methods may control the resultant cut angle and the shape of a top of the cut. The top of the cut can have either a sharp edge, or have a rounded lip. The radius of the rounded lip can be adjusted. The standoff distance defined between the nozzle of the plasma arc torch and the top surface of the workpiece contributes to defining the resultant cut angle and the shape of the top of the cut. In particular, increasing the standoff results in a greater radius and increases the cut angle and decreasing the standoff distance does the opposite. Additionally, the angle of inclination of the plasma arc torch can be used to compensate for a resultant cut angle so as to produce a desired cut angle. | 09-01-2011 |
20110210101 | PROCESSES FOR USING A PLASMA ARC TORCH TO OPERATE UPON AN INSULATION-COATED WORKPIECE - A process for using a plasma arc torch is provided that includes operating a power source of the plasma arc torch to initiate an electric arc between an electrode of the plasma arc torch and a nozzle of the plasma arc torch at a starting arc current. A flow of argon-containing gas can be provided through the nozzle while the arc exists between the electrode and the nozzle, and the power source operated to cause the arc to extend out from the nozzle to a coating of insulation on a workpiece. The arc may ionize at least part of the argon-containing gas so as to burn through the insulation of the workpiece and attach the arc to metal of the workpiece. Thereafter, the flow of argon-containing gas can be halted and a flow of a different gas can be provided while increasing the arc current above the starting arc current. | 09-01-2011 |
20110290767 | Process of jet cutting arcuate openings - A process for the jet cutting of arcuate openings in a metal workpiece such as steel, by means of creating a jet along a predetermined axis, applying the jet to the workpiece, with the axis of the jet offset from the perpendicular, and rotating the jet around to describe the arc desired while maintaining the non perpendicular axis and terminating the cutting path just prior to completion of the opening. | 12-01-2011 |
20110297652 | Plasma Cutting Method - [PROBLEMS] To reduce the generation of fume in cutting a material to be cut typified by a steel plate with plasma. | 12-08-2011 |
20120018409 | HIGH QUALITY HOLE CUTTING USING VARIABLE SHIELD GAS COMPOSITIONS - A method and apparatus for a plasma torch system having a plasma torch tip configuration that includes a nozzle, an electrode, and a control unit for controlling a composition of the shield gas flow, such that while cutting the contour the shield gas flow comprises a first shield gas composition and while cutting the hole the shield gas flow comprises a second shield gas composition. | 01-26-2012 |
20120103947 | BEVEL HEAD ATTACHMENT FOR PLASMA AND OXY FUEL CUTTING MACHINES - A bevel head attachment comprises a rotation axis normal to a cutting plane and a rotary assembly having cylindrical inner and outer barrels and a bevel arm. The bevel arm carries a tilt arm having a torch clamp. The tilt arm rotates about a tilt axis forming an acute angle with the rotation axis. A rotation drive motor operable to rotate the bevel arm about the rotation axis and a tilt drive motor operable to rotate the tilt arm about the tilt axis are located remotely from the torch clamp. The tilt drive motor is connected to the tilt arm through the outer barrel. The motors are commanded according to only two transformation equations to rotate a torch held by the tilt arm about the rotation and tilt axes to achieve planer tilt adjustment. The lightweight attachment provides unlimited rotation, and locates sensitive electronic elements away from the torch. | 05-03-2012 |
20120145680 | Method and plasma arc torch system for marking and cutting workpieces with the same set of consumables - A plasma arc torch both cutting and marking of metal workpieces includes a plasma nozzle having a plasma nozzle orifice through which an electric arc from an electrode and a stream of plasma gas are emitted toward a workpiece, and a liquid-injection shield cup that injects liquid tangentially inwardly to the arc and stream of plasma gas. A power supply is operable to selectively deliver electrical power to the electrode at either a low power level suitable for marking of a workpiece or a high power level suitable for workpiece cutting. The torch may be selectively operated to mark at the low power level, with a plasma marking gas being delivered to the plasma gas passage, or to cut at the high power level, with a plasma cutting gas being delivered to the plasma gas passage, and liquid being delivered to the liquid injection passage for both cutting and marking. | 06-14-2012 |
20120199562 | METHOD FOR PLASMA-CUTTING A WORKPIECE BY MEANS OF A PLASMA-CUTTING SYSTEM AND PULSATING CURRENT - A method for plasma cutting a workpiece comprises providing a plasma cutting system having a plasma current source and a plasma torch, the plasma torch having an electrode and nozzle where the nozzle is a small distance from the electrode at a lower end of the plasma torch, forming a plasma chamber between the nozzle and the electrode. A current is produced with a plasma current source and the current flows through the plasma torch during the plasma cutting process. The current is then brought to pulsation during at least a partial time period during the plasma cutting process, with the pulsation occurring in a targeted or controlled manner with a freely selectable frequency. | 08-09-2012 |
20120234802 | Machining Work Pieces with a Laser Apparatus and an Electric Arc Apparatus - A technique for machining work pieces with a laser apparatus and an electric arc apparatus includes generating a plasma gas jet with the electric arc apparatus, generating a laser beam with the laser apparatus, generating an electric arc with the electric arc apparatus, guiding the electric arc through the laser beam to a machined spot inside or on a work piece, and cutting the work piece with the electric arc or the plasma gas jet. | 09-20-2012 |
20120298632 | ANGLED CUT HEIGHT CONTROL SYSTEM FOR A PLASMA ARCH TORCH - A method of controlling the position of a tilt/tilt style plasma arc torch relative to a workpiece for a bevel cutting operation is provided that includes: calculating a bevel pivot length, wherein the bevel pivot length is a function of a torch height; piercing the workpiece with the plasma arc torch; adjusting a position of the plasma arc torch by at least one linear offset value based on the bevel pivot length; rotating the plasma arc torch about its center of rotation to the desired cutting angle and maintaining a torch center point; and translating the plasma arc along its longitudinal axis to maintain a desired arc voltage between the plasma arc torch and the workpiece. | 11-29-2012 |
20120298633 | ANGLED CUT HEIGHT CONTROL SYSTEM FOR A PLASMA ARCH TORCH - A method of controlling a position of a plasma arc torch relative to a workpiece for a bevel cutting operation is provided that includes: calculating a bevel pivot length, which is a function of a torch height; piercing the workpiece with the plasma arc torch; rotating the plasma arc torch about its center of rotation to a desired cutting angle; translating the plasma arc torch along at least one of X, Y, and Z axes to maintain a torch center point; and translating the plasma arc torch along at least one of the X, Y and Z axes to achieve a resultant displacement along a longitudinal axis of the plasma arc torch to maintain a desired torch height. | 11-29-2012 |
20130119024 | Method and Apparatus for Cutting High Quality Internal Features and Contours - An automated method for cutting a plurality of hole features using a plasma arc torch system can be implemented on a computer numerical controller. The automated method can include the steps of: a) cutting a lead-in for a hole feature using a lead-in command speed based on a diameter of that hole feature and b) cutting a perimeter for the hole feature using a perimeter command speed greater than the corresponding lead-in command speed for the hole feature. The automated method can also include the step c) of repeating steps a) and b) for each additional hole feature having a same diameter or a different diameter. | 05-16-2013 |
20130186870 | PLASMA TORCH CUTTING DEVICE AND PROCESS - A method of operating a plasma arc torch system includes placing a work piece to be cut on a table of the plasma arc torch system, wherein at least a portion of the work piece has a planer surface facing away from the table. A plasma arc torch is positioned adjacent the planer surface of the work piece using a positioning apparatus, wherein the positioning apparatus has at least five degrees of freedom about which it can move the plasma arc torch relative the work piece for cutting the work piece on the table. The method further includes angling the torch relative the planer surface of the work piece such that the torch is held at an angle of between about 1 and about 4 degrees from perpendicular with the planer surface to back burn a produced kerf such that a kerf edge is perpendicular relative the planer surface of the work piece. Additionally, the planer surface of the work piece is calculated by contacting the work piece with the torch at least three times. | 07-25-2013 |
20130240491 | TEMPLATE DEVICES FOR CUTTING AND MARKING SHEET METAL - The embodiments disclosed herein provide a device suitable for assisting cutting and/or marking metal, such as sheet metal, comprising a template member, and optionally, an attachment component such as a magnetic component. The template member may further comprises a solid substrate material or a solid component and an outer edge and/or a window component. The device is configured so that the magnetic component allows the template member to be affixed to a metal object so that the outer edge and/or the window component may be used as a guide for cutting the metal, and allows the component to be removed from the metal when it is no longer needed for cutting. | 09-19-2013 |
20130319978 | Plasma Cutting Method and System - A plasma cutting system for measuring or monitoring the voltage between a plasma torch and the material being cut to determine a voltage or voltage signature and comparing that measurement against predetermined values to indicate that an initial pierce of the material is complete, and based on the measurement, moving the torch or the material to a different location for additional cutting. | 12-05-2013 |
20140069895 | AUTOMATED CARTRIDGE DETECTION FOR A PLASMA ARC CUTTING SYSTEM - The invention features methods and apparatuses for establishing operational settings of a plasma arc cutting system automatically using replaceable cartridges. A replaceable cartridge for use with a plasma arc cutting system includes a housing, a connection mechanism for coupling the housing to a plasma arc torch, an arc constrictor connected to the housing, an arc emitter connected to the housing, and an identification mechanism disposed relative to the housing and configured to communicate information to a reader of the plasma arc cutting system and automatically set at least one operating parameter of the plasma arc cutting system. | 03-13-2014 |
20140097160 | Helical Bar Concave - A method of manufacturing a helical bar concave from a flat, rolled laser cut arrangement that provides a net helical concave functionality. Laser cutting a flat metal sheet to form helical cutouts defining a percent open area having a helical geometry in combination with configurable rub bars mounted in a helical fashion results in a configurable helical bar concave in which the number or aggressiveness of the threshing surface on the inside radius of the grate may be changed and/or the rub bars may be moved to the outside of the grate to change the percent open area and hence the separation characteristics of the concave. | 04-10-2014 |
20140110381 | Thermal Torch Lead Gas Delivery Methods and Related Systems and Devices - In some aspects, methods of initiating a plasma arc in a plasma cutting system can include providing a plasma gas supply lead line extending between a power supply and a plasma arc cutting torch, where the lead line has a first segment proximate to the power supply and a second segment proximate to the torch, and an in-line valve within the lead line between the first segment and the second segment; selectively closing the in-line valve to capture a static volume of gas in the first segment; establishing a decayable volume of gas in the second segment; and initiating the plasma arc when a pressure of the decayable volume reaches a pressure value within a predetermined range. | 04-24-2014 |
20140131324 | Battery-Controlled Plasma Arc Torch System - A method is provided for operating a plasma arc torch system having a power supply and a plasma arc torch. The method includes supplying power to the power supply from a battery. The battery provides at least a portion of the power to generate a plasma arc by the plasma arc torch. The method also includes communicating a first signal, indicating at least one parameter of the battery, between the battery and a control unit of the power supply, generating a second signal, by the control unit, based on the at least one parameter of the battery, and controlling, using the control circuit, operation of the plasma arc torch based on the second signal. | 05-15-2014 |
20140138360 | Articulating Thermal Processing Torches and Related Systems and Methods - In some aspects, a plasma processing torch can include an end portion that receives at least one gas and at least one power input; a first joint coupled to the end portion, the first joint conveying the gas and power through the first joint; a middle portion coupled to the first joint, the middle portion conveying the gas and power through the middle portion; a second joint coupled to the middle portion at an end opposite the first joint, the pivot joint conveying the gas and power through the pivot joint; and a head portion coupled to the second joint, the head portion conveying the gas and power to a torch tip to generate a plasma arc. | 05-22-2014 |
20140144891 | METHOD FOR THE PLASMA CUTTING OF WORKPIECES - The invention relates to a method for the plasma cutting of workpieces. It is the object of the invention to provide possibilities with which improved cutting surfaces can be achieved in plasma cutting which do not require any reworking, or at least only a reduced reworking. In the method in accordance with the invention, a plasma cutting torch having at least one torch body, an electrode and a nozzle is used and the plasma jet is inclined or deflected at least before the traveling over of a workpiece edge at an angle δ with respect to the axis aligned perpendicular to the workpiece surface such that the emission position of the plasma jet from the workpiece is arranged at a spacing in the feed movement direction which is at most half the amount than is the case with a plasma jet incident perpendicular on the workpiece surface. | 05-29-2014 |
20140190944 | METHOD AND APPARATUS FOR AUTOMATICALLY CONTROLLING GAS PRESSURE FOR A PLASMA CUTTER - A system for providing a dynamically controlled plasma cutting system. The plasma cutting system includes a proportional valve and a sensing device arrangement and a controller connected to this arrangement. The system is configured to dynamically control gas flow in a plasma torch. The system measures gas pressure at a proportional valve and makes necessary gas pressure adjustments in the system by way of controlling a drive signal sent to the proportional valve to control gas flow. | 07-10-2014 |
20140246409 | INTEGRATED CONSUMABLE STORAGE SPACE WITHIN A PLASMA CUTTING SYSTEM - Methods and systems for housing a consumable storage bin in addition to structural, thermal management, pneumatic, and/or electronic system components in a single multifunctional component within a plasma cutting power supply are provided. One embodiment of the present disclosure relates to a consumable storage bin, which fits into a consumable storage area in the power supply unit and is accessible to a user. In one embodiment, the consumable storage bin may be eliminated, leaving only the consumable storage area in which racks, snaps, friction-fit retention features, and so forth, may be placed to hold the consumables and ensure easy user access. | 09-04-2014 |
20140312010 | PLASMA TORCH CUTTING DEVICE AND PROCESS - A method of operating a plasma arc torch system includes placing a work piece to be cut on a table of the plasma arc torch system, wherein at least a portion of the work piece has a planer surface facing away from the table. A plasma arc torch is positioned adjacent the planer surface of the work piece using a positioning apparatus, wherein the positioning apparatus has at least five degrees of freedom about which it can move the plasma arc torch relative the work piece for cutting the work piece on the table. The method further includes angling the torch relative the planer surface of the work piece such that the torch is held at an angle of between about 1 and about 4 degrees from perpendicular with the planer surface to back burn a produced kerf such that a kerf edge is perpendicular relative the planer surface of the work piece. Additionally, the planer surface of the work piece is calculated by contacting the work piece with the torch at least three times. | 10-23-2014 |
20140332505 | METHOD OF MANUFACTURING TRACK SHOE - A method of manufacturing an undercarriage track shoe is provided. The method includes positioning a track shoe longbar at a workstation. The track shoe longbar has a sectional profile for a plurality of track shoes thereon. The method also includes engaging one end of the track shoe longbar in a first chuck and a second end of the track shoe longbar in a second chuck. The method also includes cutting at least one of a hole and a notch into the track shoe longbar using a laser cutter. The method includes cutting a single track shoe from the track shoe longbar using a plasma cutter. | 11-13-2014 |
20140353294 | PLASMA CUTTING METHOD AND PLASMA CUTTING DEVICE - A plurality of cutout members are cut out from a plate blank by a plasma arc generated from a plasma torch by a method including a piercing step and a cutting step. In the piercing step, an aperture is formed on an outer peripheral side of a cutout member by maintaining the plasma torch at a first height from the plate blank on the outer peripheral side of the cutout member while the plasma arc is generated from the plasma torch and by moving the plasma torch relative to the plate blank in a horizontal direction. In the cutting step, a continuous cutting groove is formed along an outer contour of the cutout member by setting the plasma torch at a second height lower than the first height and by moving the plasma torch in the horizontal direction along an incision part and a processing line continuing to the incision part. | 12-04-2014 |
20150027998 | PLASMA ARC CUTTING SYSTEM AND PERSONA SELECTION PROCESS - The invention features methods and apparatuses for establishing operational settings of a plasma arc cutting system. A plasma power supply includes a user selectable control. The user selectable control enables selection of a single cutting persona that establishes at least a current, a gas pressure or gas flow rate, and an operational mode of the plasma arc cutting system. | 01-29-2015 |
20150027999 | COMBINED MACHINING METHOD AND COMBINED MACHINING DEVICE - A method of cutting a cut member out of an original sheet by means of thermal cutting and machining, and includes a hole-cutting process, a finishing process, and an outer periphery-cutting process. During the hole-cutting process, a hole is created in the original sheet by means of thermal cutting while leaving a machining allowance in addition to the finished size of the hole. During the finishing process, a cutting tool is inserted into the hole which has been created through the hole-cutting process, and the cutting tool is guided along the inner circumference of the hole so as to cut the thermally-cut end surface in order to machine the hole to the finished size. During the outer periphery-cutting process, the outer periphery of the cut member is cut by means of thermal cutting to take the cut member out of the original sheet. | 01-29-2015 |
20150053656 | Laser-Supported Plasma Processing - Methods, devices and systems for laser-supported plasma cutting or plasma welding of a workpiece. In one aspect, a method includes producing a plasma beam which extends in an expansion direction between an electrode and a processing location on the workpiece, the plasma beam having, with respect to a center axis of the plasma beam that extends in the expansion direction, an inner central region and an outer edge region, and supplying laser radiation to the outer edge region of the plasma beam. The laser radiation supplied to the outer edge region extends parallel with the center axis of the plasma beam. | 02-26-2015 |
20150129563 | METHODS AND SYSTEMS FOR PLASMA CUTTING HOLES AND CONTOURS IN WORKPIECES - Embodiments of the present invention include systems and methods of using a plasma arc torch to cut holes and contours in workpieces having varying thickness and material properties. The systems and methods of the present invention allow for the cutting of holes and contours without the need for using secondary processing by using particular overburn, tail out and/or cutting parameters. | 05-14-2015 |
20150296605 | PLASMA CUTTING MACHINE AND CUTTING METHOD - A plasma torch is provided with an electrode for generating a plasma arc, a nozzle having an opening through which the plasma arc passes, and a cover member. The cover member is arranged to cover the nozzle in the jetting direction of the plasma arc from the nozzle. The cover member has an opening through which the plasma arc passes. The cover member is made from a magnetic material. | 10-15-2015 |
20150342019 | METHOD OF IMPROVING ELECTRODE LIFE BY SIMULTANEOUSLY CONTROLLING PLASMA GAS COMPOSITION AND GAS FLOW - A method of operating a plasma arc torch system is provided. A first plasma gas supply source, a second plasma gas supply source, and a control unit are provided. A first plasma gas composition is flowed through a first plasma gas flow path, and a plasma arc is generated using the first plasma gas composition. After arc generation, the plasma gas composition is changed to a second plasma gas composition, and the plasma gas flow path is changed to a second plasma gas flow path, wherein the second plasma gas flow path is different from the first plasma gas flow path. The plasma arc is sustained using the second plasma gas composition. The first and second plasma gas flow paths are both at least partially disposed within the plasma arc torch. | 11-26-2015 |
20160023295 | AUTOMATED GAS CUTTING SYSTEM WITH AUXILIARY TORCH - An automated plasma cutting system is provided that includes a positioning system mounted to a support, an automated plasma arc torch mounted to the positioning system, and at least one power supply operatively connected to the automated plasma arc torch. The power supply may provide electrical power and fluid flow to the automated plasma arc torch for operation. The system further includes a controller in communication with the automated plasma arc torch and the power supply, and an auxiliary plasma arc torch operatively connected to the power supply, wherein the power supply provides electrical power and fluid flow to both the automated plasma arc torch and the auxiliary plasma arc torch. The automated plasma arc torch may process the workpiece to generate a set of features, while the auxiliary plasma arc torch may process/cut a residual framework of the workpiece remaining after formation of the set of features. | 01-28-2016 |
20160039048 | Guiding Assembly for a Workpiece Cutting Apparatus, Workpiece Cutting Apparatus Including the Same, and Method for Displacing a Cutting Assembly Along a Workpiece Cutting Table - A workpiece cutting apparatus includes a cutting table with a workpiece receiving surface, at least two longitudinally-extending rails extending longitudinally on opposed sides of the cutting table and substantially parallel to one another, a bridge with an elongated cutting assembly support and engagement arms at opposed ends thereof, and at least two driving assemblies. Each one of the engagement arms includes a bridge engagement member engageable with a corresponding one of the at least two longitudinally-extending rails, from below. Each one of the driving assemblies operatively connects each one of the engagement arms to the corresponding one of the at least two longitudinally-extending rails. The at least two driving assemblies are actuable to translate the engagement arms along the at least two longitudinally-extending rails. A method of cutting a workpiece using the workpiece cutting apparatus and a method for assembling a workpiece cutting apparatus are also provided. | 02-11-2016 |
20160129515 | METHOD AND APPARATUS FOR ELIMINATING CUT TAPER - Methods and apparatus for a material cutting system are provided. The system has a table for receiving a work piece. A cutting head cuts the work piece on the table and includes a positioning apparatus. The positioning apparatus moves the cutting head relative to the work piece at an angle relative to a planar surface of the work piece. The material cutting system also includes a computerized numeric controller (CNC) controlling the positioning apparatus. The CNC references a table of values within application software to find a material value and a work piece thickness value within the table to determine the angle from the perpendicular to produce a kerf edge that is formed at a particular angle to the work piece planar surface. | 05-12-2016 |
20160174353 | Water Injection and Venting of a Plasma Arc Torch | 06-16-2016 |