Method for reducing extrusion start-up pressure

Details Method for reducing extrusion start-up pressure Method for reducing extrusion start-up pressure

B - Operations, Transporting

21

D

205/22

B21D 22/10 (2006.01) B21C 23/00 (2006.01) B21C 31/00 (2006.01)

Patent

CA 1041946

METHOD FOR REDUCING EXTRUSION START-UP PRESSURE Abstract of the Disclosure Extrusion start-up or peak pressure requirement is reduced by initially commencing extrusion of the billet through a multiple aperture die and then closing off all but one of the said apertures in the die (FIG. 5).

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