Straightening machines and methods

Details Straightening machines and methods Straightening machines and methods

1984-10-10

1987-12-08

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 99, B21D 304

Patent

active

047111127

ABSTRACT:
A cross-roll straightener adapted to straighten round metal stock, wire, rods, bars and tubes by rotatingly advancing the stock through a central curved pass such that it is flexed beyond the yield point in a substantially uniform and gradual manner. A three pair roll arrangement provides uniform guidance and flexure while avoiding marking or collapsing of the stock. Also provided is a method for maintaining the stock in the pass line of a cross-roll straightener having a female roll of larger diameter than the male roll.

REFERENCES:
patent: 2314953 (1943-03-01), Siegerist
patent: 2655194 (1953-10-01), Nilsson
patent: 2940503 (1960-06-01), Abramsen
patent: 3047046 (1962-07-01), Nilsson
patent: 3533257 (1970-10-01), Alfred
patent: 3540251 (1970-11-01), Page
patent: 3777533 (1973-12-01), Munchbach
patent: 3858425 (1975-01-01), Thompson
patent: 4061008 (1977-12-01), Semenenko

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