Spray forming process for producing molds, dies and related tool

Details Spray forming process for producing molds, dies and related tool Spray forming process for producing molds, dies and related tool

1994-10-07

1998-02-17

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

164 19, 164 20, 164 21, 264220, 264225, 425175, B29C 4108

Patent

active

057188637

ABSTRACT:
A method for spray forming manufacturing of near-net-shape molds, dies and related toolings, wherein liquid material such as molten metal, metallic alloys, or polymers are atomized into fine droplets by a high temperature, high velocity gas and deposited onto a pattern. Quenching of the atomized droplets provides a heat sink, thereby allowing undercooled and partially solidified droplets to be formed in-flight. Composites can be formed by combining the atomized droplets with solid particles such as whiskers or fibers.

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Watson et al., "Nozzle-Aspirated Metal Forming", Paper presented at International Symposium of Casting of Near Net Shape Products, sponsored by the Metallurgical Society, Honolulu, EG & G Idaho, Inc., Idaho Falls, ID, Nov. 1988.

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