B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 39/02 (2006.01) B23P 11/00 (2006.01)
Patent
CA 2511211
A hemming method for performing a 180 degree hem between an inner panel and outer metal panel. A curvilinear prehemming tool is then moved in a direction substantially parallel to the plane of the inner and outer panels so that the prehemming tool contacts a protruding coupon on the outer panel and creates a bend line in the coupon at a position spaced outwardly from the outer edge of the inner panel. Thereafter, a final hemming tool moves relative to the panels in a direction substantially parallel to the original plane of the inner and outer panels. This final hemming tool includes a first curvilinear surface which initially contacts the coupon and rolls the coupon such that the edge of the coupon contacts the inner panel. Thereafter, a generally planar wedge section of the final hemming tool contacts the coupon and compresses the coupon against the inner panel thus completing the hemming operation.
Baulier Dominique
Gheorghita Darius
Sztvorecz Gabor
Ridout & Maybee Llp
Valiant Corporation
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