Tube bending apparatus and method

Details Tube bending apparatus and method Tube bending apparatus and method

1993-12-20

1996-01-09

Jones, David

Metal deforming

With use of control means energized in response to activator...

Sensing tool or tool-linked part

72149, 72151, 72369, B21B 3712

Patent

active

054818915

ABSTRACT:
The invention provides an apparatus for the rotary draw bending of pipe and tube having means to apply an axial boost force to the trailing end of the tube during the bending operation, which force assists in controlling the flow of tube material into the bend. The apparatus has means to monitor the amount of material being used during each bending operation and means to control the amount of boost applied to the tube whereby the bending operation can be controlled to better achieve desired elongation characteristics. Bent tubes to a consistent standard and quality are obtained.

REFERENCES:
patent: 4126030 (1978-11-01), Zollweg et al.
patent: 5142895 (1992-09-01), Schuchert
patent: 5259224 (1993-11-01), Schwarze

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