Equipment and method for the generative manufacture and/or repair of components

Patent metadata

Field	Value
Publication number	US-2016016336-A1
Application number	US-201514797309-A
Country	US
Kind code	A1
Filing date	Jul 13, 2015
Priority date	Jul 17, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

The present invention relates to equipment for the generative manufacture and/or repair of components, in particular of gas turbines, having a solidifying means ( 3 ) for the layer-by-layer, local, particularly optical, thermal, and/or chemical solidification of particularly powdered, granular, and/or fluid material, and an electrodeposition means ( 1.1, 7 - 10 ) for the electrostatic deposition of particles ( 6 ) and/or gas from a region between a layer ( 2.1 ) of material, which is to be solidified or is solidified, and the solidifying means ( 3 ), as well as a method for the generative manufacture and/or repair of components, in particular of gas turbines, by means of such equipment.

First claim

What is claimed is:

1 . Equipment for the generative manufacture and/or repair of components of gas turbines, having a solidifying means ( 3 ) for the layer-by-layer, local, optical, thermal, and/or chemical, solidification of particularly powdered, granular, and/or fluid material, wherein an electrodeposition means ( 1 . 1 , 7 - 10 ) for the electrostatic deposition of particles ( 6 ) and/or gas from a region between a layer ( 2 . 1 ) of material, which is to be solidified or is solidified, and the solidifying means ( 3 ).

2 . The equipment according to claim 1 , wherein a container ( 1 ) and/or a platform ( 4 ) and/or a layering means ( 5 ) for successive arrangement of layers of material to be solidified on layers of already solidified material having a dispensing means ( 5 ), which, can be displaced with respect to the holder, for dispensing material to be solidified, and/or a distributing means ( 5 ) for distribution of material for a layer of material to be solidified.

3 . The equipment according to claim 2 , wherein at least one electrode ( 1 . 1 , 7 ) of the electrodeposition means is fixed in position at the container or platform, or relative to the holder.

4 . The equipment according to claim 1 , wherein a displaceable electrode is fixed in position at the solidifying means.

5 . The equipment according to claim 1 , wherein the electrodeposition means has a one-part or multipart deposition electrode ( 7 ), a one-part or multipart counter electrode ( 1 . 1 ), which is spaced at least 1 cm and/or at most 100 cm from the deposition electrode, a voltage source ( 8 ) for application of a DC or AC voltage between the deposition electrode and the counter electrode, of at least 15 kV and/or at most 85 kV, and/or a control means ( 9 ) for controlling a voltage applied between the deposition electrode and the counter electrode.

6 . The equipment according to claim 5 , wherein the electrodeposition means has a cleaning means ( 10 ) for particularly continuous or intermittent cleaning of the deposition electrode ( 7 ).

7 . The equipment according to claim 1 , wherein the electrodeposition means has an ionization means ( 1 . 1 , 7 - 9 ) for ionization of gas in the region between a layer ( 2 . 1 ) of the material that is to be solidified and/or is solidified and the solidifying means ( 3 ).

8 . A method for the generative manufacture and/or repair of components of gas turbines, comprising the steps of:
providing a solidifying means ( 3 ) for the layer-by-layer, local, optical, thermal, and/or chemical, solidification of particularly powdered, granular, and/or fluid material, wherein an electrodeposition means ( 1 . 1 , 7 - 10 ) for the electrostatic deposition of particles ( 6 ) and/or gas from a region between a layer ( 2 . 1 ) of material, which is to be solidified or is solidified, and the solidifying means ( 3 ); wherein successive layers of particularly powdered, granular, and/or fluid material are arranged on layers of already solidified material and the solidifying means ( 3 ) solidifies this optically, thermally, and/or chemically, and bonds it with the respectively adjacent layer of already solidified material, and wherein the electrodeposition means ( 1 . 1 , 7 - 10 ) electrostatically deposits particles ( 6 ) and/or gas from the region between a layer ( 2 . 1 ) of material that is to be solidified and/or is solidified and the solidifying means ( 3 ).

9 . The method according to claim 8 , wherein the electrodeposition means electrostatically deposits particles and/or gas from the region before, during, and/or after local solidification of a layer of material.

10 . The method according to claim 8 , wherein a control means ( 9 ) of the electrodeposition means controls a voltage applied between a deposition electrode and a counter electrode ( 7 , 1 . 1 ) of the electrodeposition means as a function of a local solidification of a layer of the material and/or of a concentration, a measured concentration, of particles to be deposited and/or gas to be deposited in the region.

11 . The method according to claim 10 , wherein a cleaning means ( 10 ) of the electrodeposition means cleans a deposition electrode ( 7 ) of the electrodeposition means, continuously or intermittently.

12 . The method according to claim 8 , further comprising the step of:
providing an ionization means ( 1 . 1 , 7 - 9 ) of the electrodeposition means; ionizing gas in the region by the ionization means before, during, and/or after local solidification of a layer of material.

13 . The method according to claim 8 , where at least one electrode of the electrodeposition means is displaced with respect to the holder ( 1 , 4 ) for the material ( 2 ), during, and/or after local solidification of a layer of material.

Assignees

• MTU Aero Engines AG

Inventors

• Hess Thomas
• Schlick Georg
• Ladewig Alexander

Classifications

• B29C35/0805

  using electromagnetic radiation · CPC title

• B29C64/153

  using layers of powder being selectively joined, e.g. by selective laser sintering or melting · CPC title

• B05B14/42

  using electrostatic means · CPC title

• C25D13/00

  Electrophoretic coating characterised by the process (C25D15/00 takes precedence; compositions for electrophoretic coating C09D5/44) · CPC title

• B29C35/0266 Primary

  Local curing (for repairing B29C73/34) · CPC title