发明授权
- 专利标题： Method for preventing crack formation and for slowing down the advancement of a crack in metal aircraft structures by means of laser shock rays
- 专利标题（中）： 通过激光冲击射线防止裂纹形成和减缓金属飞机结构中的裂纹进展的方法
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申请号： US13111405申请日： 2011-05-19
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公开(公告)号： US09150941B2公开(公告)日： 2015-10-06
- 发明人: Juergen Steinwandel , Domenico Furfari , Nikolaus Ohrloff , Claudio Dalle Donne
- 申请人： Juergen Steinwandel , Domenico Furfari , Nikolaus Ohrloff , Claudio Dalle Donne
- 申请人地址： DE Hamburg
- 专利权人： Airbus Operations GmbH
- 当前专利权人： Airbus Operations GmbH
- 当前专利权人地址： DE Hamburg
- 代理机构： Jenkins, Wilson, Taylor & Hunt, P.A.
- 优先权： DE102008044407 20081205
- 主分类号： B23K26/00
- IPC分类号： B23K26/00 ; C21D10/00 ; B64F5/00
摘要：
The present invention provides a method for preventing the forming of cracks and slowing the crack propagation in metallic airplane structural parts by laser shock peening with the following steps: Providing an airplane structural part having a crack; irradiating a first surface area of the airplane structural part close to the crack with a first pulsed laser beam having a first wavelength and a first pulsation frequency, wherein energy of the first laser beam is absorbed by the airplane structural part and a shock wave runs through the airplane structural part, which creates compressive prestressings in the airplane structural part.
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