Extrusion machinery

Details Extrusion machinery Extrusion machinery

1990-04-30

1991-03-19

Spruill, Robert L.

Metal deforming

By extruding through orifice

By plural impellers operating into one extrusion chamber

72262, 72268, 72467, B21C 2324, B21C 2506

Patent

active

050000250

ABSTRACT:
A two wheel conform type aluminum extrusion machine and a die assembly and subassembly for extruding tubing and/or cladding a core material. The die subassembly permits lateral adjustment of a die ring relative to a mandrel to assure uniform wall thickness in the extruded tubing. A method of utilizing the die subassembly comprises assembly thereof and prefilling the subassembly with molten aluminum.

REFERENCES:
patent: Re32399 (1987-04-01), Nagai et al.
patent: 4208898 (1980-06-01), Ames et al.
patent: 4564347 (1986-01-01), Vaughan
patent: 4831859 (1989-05-01), Cleve et al.

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