Extrusion press for manufacturing extruded sections from metal b

Details Extrusion press for manufacturing extruded sections from metal b Extrusion press for manufacturing extruded sections from metal b

1984-12-03

1986-08-19

Larson, Lowell A.

Metal deforming

By extruding through orifice

Expressing plural products

72272, 722735, B21C 2308, B21C 2700

Patent

active

046062106

ABSTRACT:
A process and apparatus for the indirect extrusion of hollow sections over a mandrel having a diameter d.sub.D from a plurality of billets each having a diameter d.sub.on wherein the volume throughput of metal is greater than that obtained by the indirect extrusion over a mandrel of said hollow sections from a single hollow billet under the same extrusion force thereby increasing productivity wherein the diameter of the mandrel d.sub.D with respect to the diameter d.sub.on of the billet to be extruded over the mandrel is d.sub.D <0.4 d.sub.on.

REFERENCES:
patent: 3178920 (1965-04-01), Buffet
patent: 3201966 (1965-08-01), Benteler et al.
patent: 3347079 (1967-10-01), Rowell
patent: 3391566 (1968-07-01), Linnerz et al.
patent: 3394579 (1968-07-01), Hall et al.
patent: 3468152 (1969-09-01), Croseck et al.
patent: 3528275 (1970-09-01), Sibler
patent: 3580038 (1971-05-01), Andreassian
patent: 3724254 (1973-04-01), Hubert
patent: 4084422 (1978-04-01), Zilges et al.
patent: 4159560 (1979-07-01), Wagner

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