Method of and apparatus for continuous friction-actuated extrusi

Details Method of and apparatus for continuous friction-actuated extrusi Method of and apparatus for continuous friction-actuated extrusi

1981-02-06

1983-08-09

Hunt, Brooks H.

Powder metallurgy processes

Forming articles by uniting randomly associated metal particles

Consolidation of powders

72262, B22F 302, B21C 2301

Patent

active

043976220

ABSTRACT:
In a modified "Conform" machine for continuous friction-actuated extrusion of metals, especially particulate copper, the abutment at the outlet end of the working passageway does not fully block the end of the wheel groove. Instead a substantial clearance is left, and metal extruding through it adheres to the wheel to re-enter the working passageway at the entry end. Preferably the abutment is of semicircular cross-section. For a given output rate, a significant reduction in torque, and working stresses, is obtained.

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