Sculpture fabricating method

Details Sculpture fabricating method Sculpture fabricating method

1975-02-24

1976-12-14

Lazarus, Richard B.

Metal founding

Process

Shaping a forming surface

33 1G, 164 34, B22C 904, G01B 314

Patent

active

039969908

ABSTRACT:
A method for producing sculptures which have a thin-walled outer metal shell and an internal soft core made of plaster, for example. A mold of the sculpture to be fabricated is constructed smaller by the thickness of the metallic outer shell. A substance which can withstand high temperatures when coming into contact with molten metal, such as plaster, is then poured into the mold. After the plaster cast is removed from the mold, a layer of wax is applied with a thickness exceeding the thickness of the final metallic shell. The final shape of the sculpture is then cut on the exterior surface of the wax, so that the wax layer has a thickness corresponding to the thickness of the outer metallic shell. The cut wax layer is then covered with plaster, and heat is applied to melt the wax and allow the wax to drip out through an opening in the outer plaster layer. Metal is afterwards poured in molten state, into the space left vacant by the wax, and the outer plaster is removed after solidification of the metal to leave a thin-walled metal shell of the sculpture with an interior soft core.

REFERENCES:
patent: 3041688 (1962-07-01), Wilder
patent: 3259949 (1966-07-01), Moore
patent: 3424226 (1969-01-01), Steele

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