Method of repairing single crystal metallic articles
摘要
The invention includes melting a filler material into a metallic substrate having a defect under conditions chosen to preclude cracking. In a preferred embodiment of the invention, a laser beam is operated at a relatively low power density and at a relatively large diameter for an extended length of time to produce a molten pool with a low aspect ratio. <IMAGE>
申请公布号
EP0740976(B1)
申请公布日期
2001.11.21
申请号
EP19960630025
申请日期
1996.04.25
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
MARCIN, JOHN JOSEPH, JR.;NEUTRA, JUSTIN ANDREA;ABBOTT, DAVID HENRY;ADUSKEVICH, JAMES PETER;SHAH, DILIP M.;CARRAWAY, DOROTHEA NADETTE;LANGEVIN, RAYMOND PAUL;SAUERHOFFER, MARC R.;STONE, RICHARD ALAN