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

B - Operations, Transporting

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B21C 25/10 (2006.01) B21C 3/18 (2006.01) B22C 9/04 (2006.01) B23P 15/24 (2006.01)

Patent

CA 1169272

ABSTRACT OF THE DISCLOSURE The process for preparation of support tooling for extrusion dies leads to substantial reduction in machining by utilizing a precision full mould casting method in which a destructible pattern is adjusted for 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. Finished machining and treatment requires minimal time and at substantial energy reduction. The pattern is prepared from a destructible or vapourizable plastics material replaced by the molten metal conforming to the mould configuration.

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