Invention Grant
- Patent Title: Method of repairing a blade of a one-piece bladed disc of a turbomachine and test piece for implementing the method
- Patent Title (中): 修复涡轮机的单片叶片的叶片和用于实施该方法的试件的方法
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Application No.: US11457992Application Date: 2006-07-17
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Publication No.: US07825348B2Publication Date: 2010-11-02
- Inventor: Bernard Bouet , Stephane Kerneis , Claude Andre Charles Pagnon , Eric Christian Jean Pinto
- Applicant: Bernard Bouet , Stephane Kerneis , Claude Andre Charles Pagnon , Eric Christian Jean Pinto
- Applicant Address: FR Paris FR Paris
- Assignee: SNECMA,SNECMA Services
- Current Assignee: SNECMA,SNECMA Services
- Current Assignee Address: FR Paris FR Paris
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0508151 20050729
- Main IPC: B23K26/20
- IPC: B23K26/20 ; B23P6/00 ; B23P15/00
Abstract:
To repair the blade, a patch is welded by an electron beam. The method starts by machining the damaged zone so as to obtain a zone to be repaired having a defined profile; welded on to a first test piece element corresponding to the blade, having said defined profile, is a second test piece element, corresponding to the patch, in order to obtain a start-of-run test piece; the quality of this test piece is verified and, if it corresponds to the repair acceptance criteria, the patch is welded on to the zone to be repaired using the same electron-beam welding machine without changing its operating parameters, and the repaired zone is reworked by machining.
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