Sheet metal hemming method and apparatus

Details Sheet metal hemming method and apparatus Sheet metal hemming method and apparatus

B - Operations, Transporting

21

D

B21D 39/02 (2006.01) F16B 5/00 (2006.01)

Patent

CA 2382583

A sheet metal hemming method and apparatus for securing inner and outer sheet metal panels together by forming a generally flat hem along respective peripheries of the two panels. A fixture receives and holds an outer sheet metal panel that is formed to include an upstanding border flange. An inner sheet metal panel is stacked on top of the outer panel. A hemming tool movably supported adjacent the fixture bends the upstanding border flange of the outer sheet metal panel over a periphery of the inner panel and into a position forming an acute angle relative to an underlying portion of the outer panel. The hemming tool also bends an outer portion of the border flange down onto the periphery of the inner panel and into a position over and generally parallel to the underlying portion of the outer sheet metal panel.

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