Metal forming process

Details Metal forming process Metal forming process

1997-03-24

1999-09-14

Utech, Benjamin

Coating processes

Spray coating utilizing flame or plasma heat

Metal or metal alloy coating

4274192, 427404, 427422, 427424, 427425, 427427, 427426, C23C 408

Patent

active

059520566

ABSTRACT:
Atomized metal is deposited metal onto a substrate so as to cause at least partial solidification of the deposited metal; further atomized metal is deposited onto the partially solidified deposited metal on the substrate; and the metal deposited onto the partially solidified deposited metal is allowed to fully solidify on the substrate; the cooling of the further deposited metal, and the composition of the metal and/or of a gas used in the atomization of the further atomized metal being tailored such that volumetric contraction on solidification and cooling of the further deposited metal is compensated for, when the deposited metal has been cooled to ambient temperature, by volumetric expansion in a reaction or phase change in the further deposited metal.

REFERENCES:
patent: 3976809 (1976-08-01), Dowell
patent: 4297135 (1981-10-01), Giessen et al.
patent: 4655852 (1987-04-01), Rollis
patent: 4666733 (1987-05-01), Wlodek
patent: 5338577 (1994-08-01), Burdette
patent: 5607779 (1997-03-01), Naoi
patent: 5656787 (1997-08-01), Shivanath et al.
patent: 5658506 (1997-08-01), White et al.
"Thermal Stability of NiCrAlY/PSZ FGM by Plasma Twin Torches Method" by Shinohara et al., ISIJ International, vol. 32 No. 8 (1992).

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