Metal working – Method of mechanical manufacture – With separating – localizing – or eliminating of as-cast...
Patent
1986-02-10
1987-12-01
Godici, Nicholas P.
Metal working
Method of mechanical manufacture
With separating, localizing, or eliminating of as-cast...
295275, 295276, 164122, 164125, 164136, B23P 1700
Patent
active
047094613
ABSTRACT:
A method of forming a fine grained equiaxed ingot by melting metal and placing it in a mold having a restriction at the entrance disposed to solidify the metal in the entrance to the mold prior to complete solidification of the metal in the mold such that a shrinkage void is formed below the entrance to the mold. The ingot is then hot isostatically pressed (HIPped) to fully densify the ingot and eliminate the shrinkage void.
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patent: 4054170 (1977-10-01), Kraai et al.
patent: 4580616 (1986-04-01), Watts
Batten, Jr. J. Reed
Godici Nicholas P.
Howmet Turbine Components Corporation
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