Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1997-11-21
2000-08-15
Zimmerman, John J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428636, 148404, B32B 1500, C30B 1316, B23K 2634
Patent
active
061034029
ABSTRACT:
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.
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Abbott David Henry
Aduskevich James Peter
Carraway Dorothea Nadette
Langevin Raymond Paul
Marcin, Jr. John Joseph
Boyd, Esq. John E.
United Technologies Corporation
Zimmerman John J.
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