Press for hydrostatic extrusion of tubes

Details Press for hydrostatic extrusion of tubes Press for hydrostatic extrusion of tubes

1975-05-22

1976-11-30

Mehr, Milton S.

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72264, B21C 2504

Patent

active

039941493

ABSTRACT:
A press for hydrostatic extrusion of tubes includes a die having a die opening therein and a mandrel projecting into the die opening and forming therewith a gap for shaping the tubular billet into a tube. The mandrel includes a carrier with a bore therein and a tip inserted in and filling the bore of the carrier. The tip includes an outer sleeve of hard metal and a core filling the sleeve formed of a material which has approximately the same E-modulus of the material of the carrier, such as steel. The inner end of the sleeve is enlarged and the front part of the carrier is compressed around the tip to fix the tip axially in the carrier.

REFERENCES:
patent: 2063563 (1936-12-01), Sparks
patent: 2809750 (1957-10-01), Arenz
patent: 3178920 (1965-04-01), Buffet
patent: 3475942 (1969-11-01), Murphy et al.
patent: 3541831 (1970-11-01), Simonton
patent: 3751958 (1973-08-01), Nilsson
patent: 3826122 (1974-07-01), Braeuninger

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