Means and method for reducing radius expansion in the bending of

Details Means and method for reducing radius expansion in the bending of Means and method for reducing radius expansion in the bending of

1976-07-29

1978-10-31

Combs, E. M.

Metal deforming

By deflecting successively-presented portions of work during...

With modification or control of temperature or work, tool or...

72342, 72364, 72702, 72369, B21D 716, B21D 7024

Patent

active

041226976

ABSTRACT:
A means and method is provided for reducing radius expansion of bent, elongated materials due to "spring-back" occurring after the material is released from the bender clamps of a hot bending apparatus, wherein the longitudinal axis of the unbent portion of the material is displaced by a small angle from a perpendicular to a line running through the center of the bend and the bender heating means.

REFERENCES:
patent: 2812004 (1957-11-01), Huet
patent: 3156287 (1964-11-01), Munro
patent: 3352136 (1967-11-01), Clarke
patent: 3368377 (1968-02-01), Hirayama et al.
patent: 3896649 (1975-07-01), Stuart
patent: 3902344 (1975-09-01), Stuart

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