Patent application number | Description | Published |
20090285715 | Welding Additive Material, Welding Methods And Component - The invention relates to a welding additive material, a use of a welding additive material, welding methods and a component which significantly improves the weldability of some nickel-based superalloys by means of a welding additive material and comprises the following constituents (in wt %): 18.0%-20.0% of chromium, 9.0%-11.0% of cobalt, 7.0%-10.0% of molybdenum, 2.0%-2.5% of titanium, 1.0%-1.7% of aluminum, 0.04%-0.08% of carbon, balance nickel. | 11-19-2009 |
20090289624 | Method for determining and evaluating eddy-current displays, in particular cracks, in a test object made from an electrically conductive material - A method for determining and evaluating eddy-current displays, in particular cracks, in a test object made from an electrically conductive material is provided. The method uses the following steps, applying an alternating electromagnetic field of a predetermined constant or variable frequency to the test object, detecting the eddy currents induced in the test object along predetermined parallel measuring tracks, providing eddy-current signals each eddy-current signal is assigned to a measuring track, conditioning the eddy-current signals and providing conditioned measured variables, interpreting the conditioned measured variables using a predetermined evaluation algorithm, and providing synthetic crack signals. | 11-26-2009 |
20090297701 | Process for Repairing a Component with a Directional Microstructure - A method of repairing a component, in particular a gas turbine component, which is produced from a base material with an oriented microstructure, comprises the steps of: cleaning the repair site, filling the repair site with a filling material corresponding to the composition of the base material, carrying out a heat treatment in the region of the filled repair site, wherein the filling material has micro- and/or nano-scale particles, during the filling of the repair site measures which prevent the oxidation of the filling material are taken, an the temperatures and holding times of the heat treatment are set appropriately for the composition of the filling material and of the base material of the component in such a way that an epitaxial attachment of the filling material to the surrounding bas material takes place. | 12-03-2009 |
20100032414 | INERT GAS MIXTURE AND METHOD FOR WELDING - An inert gas mixture including helium and nitrogen or helium and hydrogen or helium, hydrogen, and nitrogen for use during the welding of a nickel-based or cobalt-based substrate is provided. Also provided is a method for the welding of a substrate in which an inert gas mixture is used. The substrate used in the method may be nickel-based or cobalt-based. | 02-11-2010 |
20100163142 | OSCILLATING HEAT TREATMENT METHOD FOR A SUPERALLOY - Superalloy solidified in a directional manner often cannot be subjected to heat treatment because the heat treatment leads to recrystallization. As a result of the temperature profile during a heat treatment according to the invention which oscillates in the manner of a pendulum, a recrystallization during heat treatment can be avoided because mechanical stresses are reduced thanks to the recurring succession of dissolutions and precipitations of the precipitate. The method can be applied to a Ni-based superalloy with γ-precipitates. After the cyclic heat treatment, the temperature can be adjusted to and maintained at a temperature which is the same as or higher than the complete dissolution temperature. An oscillating movement can also take place above the complete dissolution temperature. | 07-01-2010 |
20110000890 | Potential-Free Wire Heating During Welding and Apparatus Therefor - In conventional hot wire welding, the deposition rate and temperature cannot be adjusted. A process for welding a component in which a heated welding wire is fed to the component is provided. Through the potential-free heating of the welding wire, the deposition rate and temperature may be further increased. A welding apparatus is also provided. | 01-06-2011 |
20110089150 | Method and Apparatus for Welding Workpieces of High-Temperature Superalloys - A welding apparatus for welding workpieces of high-temperature superalloys is provided. The welding apparatus includes a heat source for producing a heat input zone on the workpiece surface, a supplying device for supplying welding filler into the heat input zone and a transporting device for producing a relative movement between the heat source and the supplying device on the one hand and the workpiece surface on the other hand. The welding apparatus further includes a control unit with a control program, which carries out the relative movement in such a way that the welding power and the diameter of the heat input zone are set such that the cooling rate during the solidifying of the material is at least 8000 Kelvins per second. | 04-21-2011 |
20130134069 | FLEXIBLE SHIPMENT PACKAGING - A shipment packaging for elongate components is provided. Turbine blades must be sent from remote locations of the world to another location. During shipment, the coating of the turbine blades must be protected. The turbine blades are fixed at both ends by means of shipment packaging so that the turbine blades are protected. | 05-30-2013 |
20130153548 | REOPENING OF COOLING-AIR BORES USING A NANOSECOND LASER IN THE MICROSECOND RANGE - A process for reopening cooling-air holes by a laser in order to remove coat down is provided. A nanosecond laser is provided and used for reopening the holes, wherein pulse times between 1 μs and 20 μs and a pulse frequency between 20 kHz and 40 kHz provided by the nanosecond laser are used. | 06-20-2013 |
20130156966 | METHOD FOR REPROCESSING A TURBINE BLADE HAVING AT LEAST ONE PLATFORM - A method for reprocessing a turbine blade having at least one platform which due to the action of corrosion is undersized on at least one lateral platform face is provided. According to the method, the target dimension of the platform is restored by applying material to the at least one lateral platform face such that, after the material application, the platform is oversized and then the platform is given the target dimension by machining the at least one lateral platform face. The material application is carried out with the material of an adhesion promoter layer. | 06-20-2013 |
20140093669 | PROCESS FOR PROTECTING A COMPONENT, PROCESS FOR LASER DRILLING AND COMPONENT - A process is provided for protecting a component during a laser machining of the component with a hollow space. The process includes filling the hollow space with Teflon powder at least in the region of the region to be machined. The Teflon powder is introduced into the hollow space with a gelling agent. | 04-03-2014 |
20140123890 | SINGLE-CRYSTAL WELDING OF DIRECTIONALLY COMPACTED MATERIALS - A process for welding directionally solidified metallic materials is presented. Process parameters are targeted selected with respect to laser welding, advancement, laser power beam diameter and powder mass flow. The temperature gradient, which is fundamentally decisive for the single-crystal growth during laser cladding, may be set in a targeted manner. | 05-08-2014 |
Patent application number | Description | Published |
20090285715 | Welding Additive Material, Welding Methods And Component - The invention relates to a welding additive material, a use of a welding additive material, welding methods and a component which significantly improves the weldability of some nickel-based superalloys by means of a welding additive material and comprises the following constituents (in wt %): 18.0%-20.0% of chromium, 9.0%-11.0% of cobalt, 7.0%-10.0% of molybdenum, 2.0%-2.5% of titanium, 1.0%-1.7% of aluminum, 0.04%-0.08% of carbon, balance nickel. | 11-19-2009 |
20090297701 | Process for Repairing a Component with a Directional Microstructure - A method of repairing a component, in particular a gas turbine component, which is produced from a base material with an oriented microstructure, comprises the steps of: cleaning the repair site, filling the repair site with a filling material corresponding to the composition of the base material, carrying out a heat treatment in the region of the filled repair site, wherein the filling material has micro- and/or nano-scale particles, during the filling of the repair site measures which prevent the oxidation of the filling material are taken, an the temperatures and holding times of the heat treatment are set appropriately for the composition of the filling material and of the base material of the component in such a way that an epitaxial attachment of the filling material to the surrounding bas material takes place. | 12-03-2009 |
20100032414 | INERT GAS MIXTURE AND METHOD FOR WELDING - An inert gas mixture including helium and nitrogen or helium and hydrogen or helium, hydrogen, and nitrogen for use during the welding of a nickel-based or cobalt-based substrate is provided. Also provided is a method for the welding of a substrate in which an inert gas mixture is used. The substrate used in the method may be nickel-based or cobalt-based. | 02-11-2010 |
20100163142 | OSCILLATING HEAT TREATMENT METHOD FOR A SUPERALLOY - Superalloy solidified in a directional manner often cannot be subjected to heat treatment because the heat treatment leads to recrystallization. As a result of the temperature profile during a heat treatment according to the invention which oscillates in the manner of a pendulum, a recrystallization during heat treatment can be avoided because mechanical stresses are reduced thanks to the recurring succession of dissolutions and precipitations of the precipitate. The method can be applied to a Ni-based superalloy with γ-precipitates. After the cyclic heat treatment, the temperature can be adjusted to and maintained at a temperature which is the same as or higher than the complete dissolution temperature. An oscillating movement can also take place above the complete dissolution temperature. | 07-01-2010 |
20110000890 | Potential-Free Wire Heating During Welding and Apparatus Therefor - In conventional hot wire welding, the deposition rate and temperature cannot be adjusted. A process for welding a component in which a heated welding wire is fed to the component is provided. Through the potential-free heating of the welding wire, the deposition rate and temperature may be further increased. A welding apparatus is also provided. | 01-06-2011 |
20110089150 | Method and Apparatus for Welding Workpieces of High-Temperature Superalloys - A welding apparatus for welding workpieces of high-temperature superalloys is provided. The welding apparatus includes a heat source for producing a heat input zone on the workpiece surface, a supplying device for supplying welding filler into the heat input zone and a transporting device for producing a relative movement between the heat source and the supplying device on the one hand and the workpiece surface on the other hand. The welding apparatus further includes a control unit with a control program, which carries out the relative movement in such a way that the welding power and the diameter of the heat input zone are set such that the cooling rate during the solidifying of the material is at least 8000 Kelvins per second. | 04-21-2011 |
20110259363 | PROCESS FOR REMOVING A COATING FROM SURFACES OF COMPONENTS USING ONLY HYDROCHLORIC ACID - The removal of a coating from components after they have been used is often achieved using various acid baths and salt melts. A coating removal process that includes only using hydrochloric acid is provided. The duration of the process in which the coating is treated with the hydrochloric acids has a duration of between 2 and 2.5 hours. The process includes treated the coating with the hydrochloric acid at least twice. | 10-27-2011 |
20120103950 | WELDING METHOD AND COMPONENT - A process for welding a component in which a recess is filled by welding tracks is provided. The process includes providing a recess with a contour which delimits an outer upper surface of the component with respect to the recess. The welding tracks are laid such that the welding tracks also reach the surface outside a contour of the recess and that a plurality of welding layers are used in order to fill the recess until a last layer protrudes completely beyond the surface. | 05-03-2012 |
20120179285 | AUTOMATED REPAIR METHOD AND SYSTEM - A method and system for automated repair of a machine component is provided. According to the proposed method, a first geometry of the component, including a damaged portion of the component, is digitalized. A trough is then machined over the damaged portion of the component. The machining is numerically controlled using digitalized geometrical data of the first geometry of the component. A second geometry of the component is then digitalized subsequent to the machining, the second geometry including the trough. Subsequently, a material is deposited over the trough. The deposition of the material is numerically controlled digitalized geometrical data of the second geometry of the component. | 07-12-2012 |
20120267347 | Method for welding workpieces made of highly heat-resistant superalloys, including a particular mass feed rate of the welding filler material - A welding method for welding workpieces made of highly heat-resistant superalloys is provided. The method includes generating a heat input zone on the workpiece surface by means of a heat source, feeding welding filler material into the heat input zone by means of a feeding device, and generating a relative motion between the heat source and the feeding device on one hand and the workpiece surface on the other hand by means of a conveying device. Furthermore, according to the welding method, the mass feed rate is ≦350 mg/min. | 10-25-2012 |
20120273468 | SINGLE CRYSTAL WELDING OF DIRECTIONALLY SOLIDIFIED MATERIALS - A process for the directional solidification of a weld seam during build up welding is provided which includes the targeted selection of process parameters for laser welding, feeding, laser power beam diameter, and powder mass flow. The temperature gradient substantially decisive for single crystal growth during laser application welding can be set deliberately. | 11-01-2012 |
20120285933 | MONOCRYSTALLINE WELDING OF DIRECTIONALLY COMPACTED MATERIALS - A method for directionally compacting a weld seam during build-up welding is provided. The method is used for the build-up welding of a component substrate that is compacted in a directional manner and comprises dendrites which extend in a substrate dendrite direction. The method parameters with respect to feed, laser power, weld beam diameter, powder beam focus and/or powder mass flow are designed such that they result in a local orientation of the temperature gradient to the solidification front, which is smaller than 45° with respect to the substrate dendrite direction of the dendrites in the substrate, wherein the relative speed is between 30 mm/mm and 100 mm/mm, and/or the power is between 200 W and 500 W, and/or the diameter of the laser beam on the surface of the substrate is between 3 mm and 6 mm, and/or the mass feed rate is between 30 mg/mm and 600 mg/mm. | 11-15-2012 |
20130134069 | FLEXIBLE SHIPMENT PACKAGING - A shipment packaging for elongate components is provided. Turbine blades must be sent from remote locations of the world to another location. During shipment, the coating of the turbine blades must be protected. The turbine blades are fixed at both ends by means of shipment packaging so that the turbine blades are protected. | 05-30-2013 |
20130153548 | REOPENING OF COOLING-AIR BORES USING A NANOSECOND LASER IN THE MICROSECOND RANGE - A process for reopening cooling-air holes by a laser in order to remove coat down is provided. A nanosecond laser is provided and used for reopening the holes, wherein pulse times between 1 μs and 20 μs and a pulse frequency between 20 kHz and 40 kHz provided by the nanosecond laser are used. | 06-20-2013 |
20130156966 | METHOD FOR REPROCESSING A TURBINE BLADE HAVING AT LEAST ONE PLATFORM - A method for reprocessing a turbine blade having at least one platform which due to the action of corrosion is undersized on at least one lateral platform face is provided. According to the method, the target dimension of the platform is restored by applying material to the at least one lateral platform face such that, after the material application, the platform is oversized and then the platform is given the target dimension by machining the at least one lateral platform face. The material application is carried out with the material of an adhesion promoter layer. | 06-20-2013 |