Method of and apparatus for continuous friction-actuated extrusion.

摘要

IIn a modified "Conform" machine for continuous friction-actuated extrusion of metals, especially particulate copper, the abutment (11) at the outlet end of the working passageway does not fully block the end of the wheel groove (2). Instead a substantial clearance y 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.