Roller hemming apparatus and method

Details Roller hemming apparatus and method Roller hemming apparatus and method

2007-11-06

2007-11-06

Banks, Derris H. (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

Comprising tool movable relative to stationary work-portion...

C072S128000

Reexamination Certificate

active

11093383

ABSTRACT:
Various embodiments of roller hemming apparatus and methods are disclosed including one wherein multiple rollers are carried on a single mount to hem a flange in a single pass, another including induction heating and air quenching means movable with a roller to anneal the flange just prior to hem forming, and another in which friction from a rotatably driven roller heats the flange to reduce bending stresses during hemming of the flange.

REFERENCES:
patent: 3834199 (1974-09-01), Rouyer et al.
patent: 5948185 (1999-09-01), Krajewski et al.
patent: 6477879 (2002-11-01), Sawa
patent: 6672121 (2004-01-01), Carsley et al.

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