发明名称 Verfahren zum behälterlosen Herstellen rissfreier Gegenstände aus Metall
摘要 A containerless method of producing a crack free metallic article of near-net shape includes melting a filler material into a metallic substrate or seed 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 beam diameter at the substrate surface for an extended length of time to produce a molten pool with a low aspect ratio. Near-net shape is achieved by applying the process in a closed-loop, multi-axis material deposition system. <IMAGE>
申请公布号 DE69617087(T2) 申请公布日期 2002.04.18
申请号 DE1996617087T 申请日期 1996.04.25
申请人 UNITED TECHNOLOGIES CORP., HARTFORD 发明人 MARCIN, JR.;NEUTRA, JUSTIN ANDREA;ABBOTT, DAVID HENRY;ADUSKEVICH, JAMES PETER;SHAH, DILIP M.;CARRAWAY, DOROTHEA NADETTE;LANGEVIN, RAYMOND PAUL;SAUERHOEFER, MARC R.;STONE, RICHARD ALAN
分类号 F02C7/00;B23K26/34;B23P6/00;C23C26/02;C30B11/00;C30B29/02;C30B29/52;F01D5/00;F01D5/14 主分类号 F02C7/00
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