Die coating

Details Die coating Die coating

1992-11-13

1994-06-07

Bradley, Paula A.

Metal founding

Process

Shaping a forming surface

427135, 2491141, 249135, B22D 1722

Patent

active

053180917

ABSTRACT:
A metal casting die, and a method for its production, are described. By the method the die has provided over at least a part of its internal cavity forming surfaces, indentations of predetermined depth, area and distribution, by employing a technique selected from the group comprising photoetching, electrochemical etching and grit blasting. The die cavity forming surfaces also have thereon, over at least those surfaces with indentations, a coating of a hard, corrosion and erosion resistant material which extends into and between each indentation as a continuous layer.

REFERENCES:
patent: 3848847 (1974-11-01), Komatsu et al.
patent: 4085792 (1978-04-01), Eberle
patent: 4250950 (1981-02-01), Buxmann et al.
patent: 4533568 (1985-08-01), McClinton et al.
patent: 4636285 (1987-01-01), Tarumoto et al.
patent: 4668607 (1987-05-01), Wojcik
patent: 4726412 (1988-02-01), Magnan et al.
patent: 5092558 (1992-03-01), Katsura
patent: 5108668 (1992-04-01), Kallup
Metals Handbook, 9th ed, vol. 5, ASM International, 1982, pp. 334, 367-368.

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