Method of fabricating a slush mold and skin made therefrom

Details Method of fabricating a slush mold and skin made therefrom Method of fabricating a slush mold and skin made therefrom

1989-08-02

1990-06-26

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Surface finishing

264 13, 264219, 264226, 264227, 264302, B29C 4118

Patent

active

049370308

ABSTRACT:
A method of forming a slush mold and a synthetic resin skin utilizing the slush mold. The method includes the steps of roughing a foamed synthetic resin surface to define a prototype having a plurality of irregularly spaced and irregularly sized recesses, forming a metal mold to have a molding surface accurately complementary to the prototype surface and molding a skin of synthetic resin against the molding surface of the metal mold. The recesses preferably have a cross section dimension in the range of approximately 170 to 500 microns and a depth in the range of approximately 8 to 133 microns. Narrower preferred ranges are disclosed. The surface preferably has a regular unbiased variance of less than approximately 300 microns and preferably less than 200 microns.

REFERENCES:
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patent: 4500373 (1985-02-01), Kubota
patent: 4714424 (1987-12-01), Kinugasa
patent: 4716003 (1987-12-01), Gaudreau

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