Continuous extrusion of metals

Details Continuous extrusion of metals Continuous extrusion of metals

1979-07-30

1981-04-21

Larson, Lowell A.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

72 60, 72262, 72270, B21C 2332

Patent

active

042625130

ABSTRACT:
A method and apparatus are provided for continuously extruding rod feedstock through a die orifice while gripping two opposed sides of the feedstock to a pressure greater than the yield strength of the material with means for applying lubricant to the ungripped surfaces, constraining walls between which the feedstock is fed in the gripped condition, a stop at one end of the constraining walls, and a die orifice near the stop through which the feedstock is extruded, said lubricant applying means including at least two cylinders each having an open end facing a respective one of the ungripped surface when the apparatus is in use and means for introducing compressed gas into each of the cylinders.

REFERENCES:
patent: Re28795 (1976-05-01), Fuchs
patent: 3740985 (1973-06-01), Fuchs
patent: 3922898 (1975-12-01), Voorhes
patent: 4027514 (1977-06-01), Moreau
patent: 4041745 (1977-08-01), Moreau
The Reactor Group Report 2530(S), United Kingdom Atomic Energy Authority, Apr., 1974, "Conform--A New Concept for the Continuous Extrusion Forming of Metals", TRG Headquarters Risley Warrington WA3 6AT.
The Reactor Group Report 2945(S), United Kingdom Atomic Energy Authority, Apr., 1977, "The UKAEA `Conform` Method of Continuous Extrusion Forming", TRG Headquarters Risley Warrington WA3 6AT.

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