Method and apparatus for bending the flange of a workpiece

Details Method and apparatus for bending the flange of a workpiece Method and apparatus for bending the flange of a workpiece

1990-07-02

1991-08-06

Jones, David

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72322, 72373, 72375, 72381, 72413, 72473, B21D 501

Patent

active

050366947

ABSTRACT:
A device for bending a workpiece having a substantially planar leg fixed to a substantially planar cap at an initial angle comprises a block bar having a rounded bending surface for contacting the leg of a workpiece and a punch for urging the leg of the workpiece against the rounded bending surface to vary the angle between the cap and the leg from the initial angle to a desired angle while simultaneously maintaining the substantially planar shape of the cap and the leg. A method for bending a workpiece having a substantially planar leg fixed to a substantially planar cap at an initial angle comprises positioning the workpiece adjacent a block having a rounded bending surface and urging the leg of the workpiece against the bending surface.

REFERENCES:
patent: 2971224 (1961-02-01), Overholser
patent: 3400567 (1968-09-01), Sirantoine
patent: 3442114 (1969-05-01), Snowden
patent: 4356718 (1982-11-01), Makino

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