Process for preparation of support tooling for extrusion dies

Details Process for preparation of support tooling for extrusion dies Process for preparation of support tooling for extrusion dies

1980-11-10

1983-08-09

Husar, Francis S.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

72467, 76107A, 164 34, 148 2, B22D 11126, B21K 520, B22C 902

Patent

active

043970800

ABSTRACT:
A process for preparation of support tooling for extruding dies is described in which a substantial reduction in machining is experienced by utilizing a pattern destroying precision casting system in which the pattern is adjusted to shrinkage and provided with a die orifice opening staged up in size to suit the particular support role of the tooling as in a backer or bolster. This is significant because such support elements are regarded as one-of-a-kind structures. Finish machining and treatment requires minimal time and at substantial energy reduction. The pattern is prepared from a destructible or vaporizable plastic material replaced by the molten metal conforming to the mold configuration.

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patent: 4241625 (1980-12-01), Corbin et al.

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