Document Type and Number:
Japanese Patent JPH0115325
Kind Code:
B2
Abstract:
A rotary wheel member for use in a friction type, conform extrusion apparatus is made by producing a rotary wheel 10 having formed in its peripheral parts a continuous radially-extending groove, and securing in that groove an annular metal mass 76; rotating the wheel about its axis; and applying to the periphery of the annular metal mass an abutment members (36, Fig. 1) of predetermined end shape, and progressively advancing the abutment member in a radial direction as the wheel rotates whereby to machine in the peripheral parts of the metal mass a working groove 12 of predetermined cross-section, the peripheral parts of the annular metal mass being a composition which is substantially the same as that of a feedstock metal that is to be extruded in a said apparatus when equipped with the wheel member so produced.
Inventors:
JON IISUTO
IAN MATSUKUSUERU
IAN MATSUKUSUERU
Application Number:
JP1618384A
Publication Date:
March 16, 1989
Filing Date:
February 02, 1984
Export Citation:
Assignee:
METAL BOX PLC
International Classes:
B21C23/01; B21C23/00; B21C23/21; B21C23/30; B21C25/10; B21C29/00; B21C29/02; B21C31/00; B21C35/02; B21C35/06; B22F3/20
Next Patent: METHOD FOR RECORDING CARD AND CARD-ISSUING APPARATUS