Invention Grant
US08357429B2 Methods for forming articles having apertures and articles having substantially reduced residual compressive stress
有权
用于形成具有孔和制品的制品的方法具有显着降低的残余压应力
- Patent Title: Methods for forming articles having apertures and articles having substantially reduced residual compressive stress
- Patent Title (中): 用于形成具有孔和制品的制品的方法具有显着降低的残余压应力
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Application No.: US12979916Application Date: 2010-12-28
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Publication No.: US08357429B2Publication Date: 2013-01-22
- Inventor: Leonid C. Lev , Jon T. Carter , Yang T. Cheng , Carolina C. Ang
- Applicant: Leonid C. Lev , Jon T. Carter , Yang T. Cheng , Carolina C. Ang
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Dierker & Associates, P.C.
- Main IPC: C23C16/00
- IPC: C23C16/00 ; C23C16/27
Abstract:
A method for forming an aperture includes stamping an aperture into the article using a pellet, and refining aperture shape(s) and/or aperture dimensions. Methods for forming articles having reduced residual compressive stress are also disclosed. Very generally, the methods include establishing a diamond coating on at least a portion of a substrate, and applying a stress-relief process to the diamond coating, the substrate, or combinations thereof.
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