发明授权
US06984801B2 Method of closing a hole in a gas turbine blade top by laser welding
有权
通过激光焊接封闭燃气轮机叶片顶部的孔的方法
- 专利标题： Method of closing a hole in a gas turbine blade top by laser welding
- 专利标题（中）： 通过激光焊接封闭燃气轮机叶片顶部的孔的方法
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申请号： US10467179申请日： 2002-08-29
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公开(公告)号： US06984801B2公开(公告)日： 2006-01-10
- 发明人: Masahiko Mega , Koji Takahashi , Yoshitaka Uemura , Kengo Yamaguchi , Masaya Kanikawa , Syuho Tsubota , Ken Fujita , Toshihiko Tsunatani , Minoru Ohara
- 申请人： Masahiko Mega , Koji Takahashi , Yoshitaka Uemura , Kengo Yamaguchi , Masaya Kanikawa , Syuho Tsubota , Ken Fujita , Toshihiko Tsunatani , Minoru Ohara
- 申请人地址： JP Tokyo
- 专利权人： Mitsubishi Heavy Industries, Ltd.
- 当前专利权人： Mitsubishi Heavy Industries, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2001-260134 20010829
- 国际申请： PCT/JP02/08730 WO 20020829
- 国际公布： WO03/018976 WO 20030306
- 主分类号： B23K26/20
- IPC分类号： B23K26/20
摘要：
A tip plug is capped on a boss section so as to fit to a hole which is used for detaching a core which is formed in a blade tip section of the gas turbine blade. A butt-section T is melted so as to form a butt-welding section by using a YAG laser beam. Also, parameters such as an interval between the butt-section T, a member for forming the tip plug, condition for a laser welding operation, and a defocus position of the laser beam are optimized.
公开/授权文献
- US20040169022A1 Method of closing working hole in gas turbine blade top 公开/授权日：2004-09-02
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