Metal working – Method of mechanical manufacture – With separating – localizing – or eliminating of as-cast...
Patent
1992-09-01
1993-09-07
Batten,, Jr.,
Metal working
Method of mechanical manufacture
With separating, localizing, or eliminating of as-cast...
295275, 164 98, 164112, B22D 1902, B23P 1700
Patent
active
052417379
ABSTRACT:
A casting mold includes a melt-receiving mold cavity having a preformed metallic or intermetallic insert suspended therein by one or more first elongated, slender suspension members fixed at one end to the insert and at another end to the mold to locate the insert in a first direction in the mold and by one or more second elongated, slender suspension members fixed at one end to the insert and abutting the mold at another end to locate the insert in a second direction in the mold. A melt of metallic or intermetallic material is introduced into the mold cavity about the suspended insert and the suspension members and is solidified to form a composite casting. The casting is subjected to elevated temperature/elevated isostatic gas pressure conditions wherein the interface between the suspension members and the cast melt is effective to inhibit gas penetration between the insert and cast melt, thereby allowing a sound, void-free, contamination-free metallurgical bond to be produced between the insert and the cast melt.
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Batten, Jr.,
Howmet Corporation
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