Flange-forming tool

Details Flange-forming tool Flange-forming tool

1987-10-29

1989-02-07

Larson, Lowell A.

Metal deforming

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

Tool orbiting or rotating about an axis

72379, B21D 1902

Patent

active

048023558

ABSTRACT:
An apparatus and method for forming a conical flange about a circular opening in a malleable sheet material are provided. A plurality of flange-forming members are adapted to engage the circular opening in a material-opposing relationship. The members are then translated about the opening while maintaining the material-opposing relationship and varying the angular positions of the flange-forming members with respect to the material such that the conical flange is formed therein when the members are translated.

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