Invention Grant
- Patent Title: Method of producing blades or blade arrangements of a turbomachine with erosion protection layers and correspondingly produced component
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Application No.: US15599567Application Date: 2017-05-19
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Publication No.: US10400613B2Publication Date: 2019-09-03
- Inventor: Joerg Windprechtinger , Ralf Stolle , Philipp Utz , Thomas Uihlein , Markus Gether
- Applicant: MTU Aero Engines AG
- Applicant Address: DE Munich
- Assignee: MTU AERO ENGINES AG
- Current Assignee: MTU AERO ENGINES AG
- Current Assignee Address: DE Munich
- Agency: Abel Schillinger, LLP
- Priority: EP16170521 20160520
- Main IPC: F01D5/28
- IPC: F01D5/28 ; C23C28/02 ; C23C28/00 ; C23C14/02 ; C23C14/06 ; C23C14/58 ; C23C14/16 ; C23C14/22
Abstract:
The present invention relates to a method for producing a blade or blade arrangement of a turbomachine, which features the following steps: producing a blade (4) from at least one blade material, machining the blade in at least one region of the blade by a surface machining process, cleaning the surface of the blade depositing an erosion protection coating (10) of at least two layers of different hardness by physical vapor deposition in the at least one region, machining the erosion protection coating (10) by a coating smoothing process in order to establish a defined surface roughness. Furthermore, the invention relates to correspondingly produced blades or blade arrangements.
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