Repair method for the additive repair of a component

Patent metadata

Field	Value
Publication number	US-10035223-B2
Application number	US-201514919416-A
Country	US
Kind code	B2
Filing date	Oct 21, 2015
Priority date	Oct 30, 2014
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

The invention relates to a repair method for a component and includes the steps of removal of a damaged region of the component with the formation of at least one separating surface; arrangement of the component in a processing chamber of a device for the additive restoration of at least the region of the component that has been removed; determining first structural data of the component disposed in the processing chamber; providing second structural data of the component; determining third structural data based on the first and the second structural data; and additive restoration of the component region that has been removed on the at least one separating surface of the component. In addition, the invention relates to a device for the additive repair of a component.

First claim

What is claimed is:

1. A repair method for a component, comprising the steps of:
removing a damaged region of the component with the formation of at least one separating surface;
arranging the component in a processing chamber of a device for the additive restoration of at least the region of the component that has been removed;
determining first structural data of the component disposed in the processing chamber by a measurement system of the device, wherein the first structural data characterize an actual geometry of the component;
providing second structural data of the component by a computing device of the device, wherein the second structural data characterize a target geometry of the component;
determining third structural data based on the first and the second structural data by the computing device, wherein the third structural data characterize a target geometry of the region of the component that has been removed; and
additively restoring the component region that has been removed on the at least one separating surface of the component based on the third structural data by a construction apparatus of the device.

2. The repair method according to claim 1 , wherein the damaged region of the component is separated outside the device by a separating process.

3. The repair method according to claim 1 , wherein the component is fixed in place in a predetermined spatial orientation in the processing chamber by a retaining device.

4. The repair method according to claim 1 , wherein the first structural data are determined by a contact-free measurement system of the device.

5. The repair method according to claim 1 , wherein the step of determining the third structural data comprises adjusting first structural data and/or second structural data by the computing device.

6. The repair method according to claim 5 , wherein the adjusting comprises the triangulation and/or the translation and/or the rotation and/or the scaling of first and/or second structural data by the computing device.

7. The repair method according to claim 5 , wherein the adjusting is carried out based on at least one undamaged region of the component and/or based on surface focal points of the component and/or based on nodal points and/or based on an equilibration calculation by the computing device.

8. The repair method according to claim 5 , wherein the adjusting comprises determining a transition profile between the actual geometry and the target geometry by the computing device.

9. The repair method according to claim 8 , wherein the transition profile is determined by taking into consideration geometric parameters of the component and/or parameters of the material and/or parameters dependent on the device by the computing device.

10. The repair method according to claim 1 , wherein, for the step of additively restoring the component region that has been removed, a transformation of the third structural data into layer data is provided by the computing device, on the basis of which a layer-by-layer construction of the removed region of the component is carried out by the construction apparatus.

11. The repair method according to claim 1 , wherein at least the additively produced component region is post-processed by a separating process and/or a coating method.

Assignees

• MTU Aero Engines AG

Inventors

• Ladewig Alexander
• Schlothauer Steffen
• Hess Thomas
• Liebl Christian

Classifications

• B23P6/007 Primary

  using only additive methods, e.g. build-up welding · CPC title

• B23P6/00 Primary

  Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D1/00, B21D3/00; repairing defective or damaged objects by casting techniques B22D19/10) · CPC title

• B22F12/90

  Means for process control, e.g. cameras or sensors · CPC title

• B22F12/43

  pulsed; frequency modulated · CPC title

• B22F10/80

  Data acquisition or data processing · CPC title