Metal deforming – By application of fluent medium – or energy field – By kinetic energy of fluid or field
Patent
1975-12-22
1976-12-28
Gilden, Leon
Metal deforming
By application of fluent medium, or energy field
By kinetic energy of fluid or field
72467, 72DIG31, 72253R, B21D 2602, B30B 938
Patent
active
039994155
ABSTRACT:
Die arrangement for use with conventional and hydrostatic extrusion presses consisting of a first die for providing a first extruded section of a billet and a second die cooperating with the first die to further extrude said first extruded section to final shape. Successive dies beyond the second die are contemplated to provide successive step-wise extrusion for greater reductions, especially of large billets. The method of the invention comprises step-wise incremental sequential extrusion of the billet and extruded portions of the billet until the final shape is achieved.
REFERENCES:
patent: 1922770 (1933-08-01), Kornbrath
patent: 3527079 (1970-09-01), Braeuninger
patent: 3540259 (1970-11-01), Hinshaw
Gilden Leon
Simmons James C.
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