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    • 60. 发明专利
    • High-powered laser beam welding and assembly therefor
    • 高功率激光束焊接及其组装
    • JP2010240741A
    • 2010-10-28
    • JP2010063514
    • 2010-03-19
    • General Electric Co ゼネラル・エレクトリック・カンパニイGeneral Electric Company
    • NOWAK DANIEL ANTHONY
    • B23K26/20B23K26/00B23K26/06
    • B23K26/26B23K26/211B23K2201/18B23K2203/02B23K2203/08B23K2203/10B23K2203/12B23K2203/14B23K2203/26
    • PROBLEM TO BE SOLVED: To provide a high-powered laser beam welding method capable of joining a comparatively thick metallic member. SOLUTION: In the welding method and an assembly for performing the method, articles to be welded are placed together so that faying surfaces thereof face each other, a joint region is defined by the faying surfaces and juxtaposed surfaces of the articles, a shim is disposed between and in contact with the faying surfaces, and an edge portion of the shim protrudes from the juxtaposed surfaces. The articles are welded together by projecting onto the joint region a high-powered laser beam. The high-powered laser beam is focused on the juxtaposed surfaces of the articles and intentionally unfocused on the edge portion of the shim, so that portions of the laser beam are diffracted by the edge portion onto the juxtaposed surfaces. The laser beam and its diffracted portions melt the shim and the faying and juxtaposed surfaces of the articles. Cooling of the articles yields a welded assembly having a weld joint entirely through a through-thickness of the welded assembly. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供能够连接较厚的金属构件的高功率激光束焊接方法。 解决方案:在焊接方法和用于执行该方法的组件中,待焊接的物品被放置在一起,使得其接合表面彼此面对,接合区域由物品的布置表面和并置表面限定, 垫片布置在接合表面之间并与接合表面接触,并且垫片的边缘部分从并置的表面突出。 通过在接合区域上突出高功率激光束将制品焊接在一起。 高功率激光束聚焦在物品的并列表面上,并且有意地不聚焦在垫片的边缘部分上,使得激光束的一部分被边缘部分衍射到并置的表面上。 激光束及其衍射部分融化物品的垫片和平行和并置的表面。 制品的冷却产生焊接组件,其具有完全通过焊接组件的贯穿厚度的焊接接头。 版权所有(C)2011,JPO&INPIT