Thin wall casting

Details Thin wall casting Thin wall casting

1985-12-24

1988-02-16

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164516, 164 34, B22D 2704

Patent

active

047248912

ABSTRACT:
An article having a thin wall portion with a thickness of 0.050 of an inch or less, and a surface area of at least 16 square inches is cast as one piece. A mold for the article has a pair of surface areas with a configuration corresponding to the configuration of the thin wall portion of the article and spaced apart by a distance of 0.050 of an inch or less. The mold surface areas have an extent of at least four inches along orthogonal axes with a total surface of at least 16 square inches. Although the extent of the surfaces may vary, depending upon the design of the article to be cast, the thin wall forming portion of the mold has a minimum extent or length, as measured from a center of the thin wall forming portion to the closest edge of the thin wall forming portion, such that the ratio of this minimum distance divided by the thickness is equal to at least 40.

REFERENCES:
patent: 4224976 (1980-09-01), Blazek
Casting Design Handbook, American Society for Metals, 1962, Chapter 3, pp. 21-34.

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