Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1992-09-25
1994-06-07
Bradley, Paula A.
Metal founding
Process
Shaping liquid metal against a forming surface
164 34, 164 761, 164 45, B22C 904, B22D 1916
Patent
active
053180941
ABSTRACT:
The production of complex cavities inside castings or semi solid forms is effected by forming a core pattern (10) of a low melting point metal in order to provide a rigid metal core pattern (10). The pattern (10) is then nickel coated using either electroplating or electroless nickel plating. The metal core pattern (10) is melted out of the nickel plating to provide a nickel liner core (16). The nickel liner core (16) is placed within a mold or die cavity, and molten metal introduced into the cavity in order to provide a casting or form (30). The casting or form (30) is removed from the cavity and includes therein a plurality of passageways (20) each of which is defined and surrounded by a corrosion resistent nickel liner surface (22).
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Design-Effective Production-Prove Leachable Core Technology Ross Aluminum Foundaries Advertising Brochure dated Jul. 7, 1978.
Joy Theodore J.
McCray David M.
Allied-Signal Inc.
Bradley Paula A.
Decker Ken C.
Palguta Larry J.
Pelto Rex E.
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