Method of making a composite casting

Details Method of making a composite casting Method of making a composite casting

1993-01-08

1993-09-07

Batten, Jr., J. Reed

Metal working

Method of mechanical manufacture

With separating, localizing, or eliminating of as-cast...

295275, 164 98, 164112, B22D 1902, B23P 1700

Patent

active

052417387

ABSTRACT:
A casting mold includes a melt-receiving mold cavity having a preformed metallic or intermetallic insert suspended therein by at least one elongated, slender suspension member fixed at one end to the insert and at another end to the mold. A melt of metallic or intermetallic material is introduced into the mold cavity about the suspended insert and the suspension member 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 member 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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