Sheet metal hem forming process

Details Sheet metal hem forming process Sheet metal hem forming process

2008-03-25

2008-03-25

Tolan, Ed (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

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

C072S220000, C029S243580

Reexamination Certificate

active

07347072

ABSTRACT:
A method for hemming an inner panel and an outer sheet metal panel together. The inner panel has an outwardly extending perimeter flange comprising an end surface, an inboard surface, and a beveled surface located between the end surface and the inboard surface. The outer sheet metal panel has a peripheral edge comprising a bend portion, an intermediate portion, and an end portion. The method provides a reduced radius hem by providing the beveled surface, assembling the inner and outer panels together, prehemming the peripheral edge to a spaced relationship relative to the beveled surface, and hemming the peripheral edge of the outer panel into engagement with the perimeter flange of the inner panel.

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