Pullback type double-acting indirect extrusion press

Details Pullback type double-acting indirect extrusion press Pullback type double-acting indirect extrusion press

1986-01-23

1987-09-29

Larson, Lowell A.

Metal deforming

By extruding through orifice

Indirect extrusion

72265, B21C 2321, B21C 3504

Patent

active

046961763

ABSTRACT:
A pullback type indirect extrusion press capable of extruding a tubular article, the press including first and second movable platens connected to each other by columns, the movable platens being arranged in front of and behind a fixed platen, a mechanism for producing a extruding force provided above and below or the left and right between the fixed platen and the first movable platen, and a container device and a die stem arranged between the fixed platen and the second movable platen. A piercing cylinder mechanism is provided on the axis of the press on the side of the non-extrusion zone, the piercing cylinder mechanism being provided independently of the mechanism for producing the extruding force.

REFERENCES:
patent: 4230661 (1980-10-01), Asari et al.
patent: 4345450 (1982-07-01), Doudet
patent: 4365497 (1982-12-01), Asari
patent: 4379398 (1983-04-01), Asari et al.
patent: 4399676 (1983-08-01), Tatsuhiko et al.
patent: 4522052 (1985-06-01), Doudet

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