Device for extruding hollow and semi-hollow sections

Details Device for extruding hollow and semi-hollow sections Device for extruding hollow and semi-hollow sections

1976-12-06

1979-10-02

Lanham, C. W.

Metal deforming

By extruding through orifice

Utilizing internal forming means

72261, 72264, 72467, B21C 2308, B21C 2504, B21C 316

Patent

active

041693663

ABSTRACT:
The invention concerns a device for the extrusion of hollow or semi-hollow sections which are made in particular of a light metal. The device has at least one mandrel head on a mandrel support projecting into a die opening, the mandrel head being a special insert-type mandrel which is held in place on the mandrel support by a connecting device.

REFERENCES:
patent: 2266189 (1941-12-01), Ganoe
patent: 2698684 (1955-01-01), Guiney
patent: 3240047 (1966-03-01), Long et al.
patent: 3380129 (1968-04-01), Magruder
patent: 3527079 (1970-09-01), Braeuninger
patent: 3792951 (1974-02-01), Meyers
patent: 3858426 (1975-01-01), Kuske
Nickel Topics: published by International Nickel, vol. 22, No. 1; pp. 6 and 7 (1969) "For Unusual Strength and Toughness . . . Maraging Steel."

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