Aluminum surface treatment

Details Aluminum surface treatment Aluminum surface treatment

1995-04-17

1997-01-07

Hail, III, Joseph J.

Metal founding

Process

Shaping liquid metal against a forming surface

164477, B22D 1112

Patent

active

055907032

ABSTRACT:
A method for removing a surface layer from a solidified body of metal at an elevated temperature to remove surface defects therefrom. The method comprises providing a solidified body having a surface wherein the body can have a temperature greater than 200.degree. F. and below the solidus temperature of the metal. The metal surface is contacted with an abrasive material having a particle size in the range of 6 to 300 grit (U.S. Sieve Series). The abrasive material is applied at a flux sufficient to remove a surface layer from the body, the layer having a thickness in the range of 10 to 300 .mu.m to provide a surface substantially free of said surface defects.

REFERENCES:
patent: 2239044 (1938-12-01), Leighton
patent: 2310703 (1941-01-01), McGliney
patent: 3320701 (1967-05-01), Abrams et al.
patent: 3933532 (1976-01-01), Glomb
patent: 4420957 (1983-12-01), Weber
patent: 4532980 (1985-08-01), Miyawaki et al.
patent: 4705096 (1987-11-01), Chia

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