Method of casting a metal article

Details Method of casting a metal article Method of casting a metal article

1989-02-16

1990-03-06

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164125, 164127, B22D 2704

Patent

active

049057529

ABSTRACT:
A long thin article having an enlarged end portion, such as a vane having a long thin airfoil and a shroud at the end of the airfoil, is cast by using a chill at the enlarged end portion of an article mold cavity. The chill is engaged by molten metal at the enlarged end portion of the article mold cavity. The molten metal quickly solidifies adjacent to the chill to eliminate the formation of defects. The chill is advantageously located in a pocket disposed at one end of the article mold cavity. The chills are placed in the pockets with the molds in an up-side-down orientation. The mold is then turned right-side-up and placed on a chill plate. The chills project from the mold and support the mold above the chill plate. During casting of an article, heat is transmitted from the enlarged end portion of the article through chill to the chill plate.

REFERENCES:
patent: 486327 (1892-11-01), Cushing et al.
patent: 3598167 (1971-08-01), Snyderman
patent: 3847203 (1974-11-01), Northwood
patent: 4202400 (1980-05-01), Gigliotti, Jr. et al.
patent: 4469161 (1984-09-01), Higginbotham et al.
patent: 4714101 (1987-12-01), Terkelsen
patent: 4724891 (1988-02-01), Brookes

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