Method of and apparatus for forming a unitary heat sink body

Details Method of and apparatus for forming a unitary heat sink body Method of and apparatus for forming a unitary heat sink body

1995-02-24

1996-10-08

Hail, III, Joseph J.

Metal founding

Process

Shaping liquid metal against a forming surface

164333, B22D 1900

Patent

active

055621465

ABSTRACT:
A method of forming a unitary heat sink metal body by supporting one end of each plurality of flat metal plates or fins in a row so that the plates are spaced and parallel and casting a base about the freely extending ends of the plates. More specifically, the base is formed by die casting. Apparatus for carrying out the above method is also provided which includes a fixed base and a support for supporting a plurality of flat metal plates or fins in spaced parallel relationship so that one end of each plate engages the fixed base and the opposite end of each plate extends freely from the support. The freely extending ends of the plates are positioned within the cavity of a mold such as a die cast mold. The cavity of the mold is filled with molten metal for filling the spaces between the freely extending ends of the plates and forming the base of the heat sink when the molten metal solidifies.

REFERENCES:
patent: 4369838 (1983-01-01), Asanuma et al.
patent: 4899210 (1990-02-01), Lorenzetti et al.
patent: 5215140 (1993-06-01), Beane
patent: 5302853 (1994-04-01), Volz et al.

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