Stock material or miscellaneous articles – All metal or with adjacent metals – Width or thickness variation or marginal cuts repeating...
Patent
1992-06-15
1993-06-22
Zimmerman, John
Stock material or miscellaneous articles
All metal or with adjacent metals
Width or thickness variation or marginal cuts repeating...
428582, 428586, 428594, 428598, E04C 234, B62D 2500, B62D 2504
Patent
active
052215857
ABSTRACT:
Two sheet metal panels are joined together to form a closed box section structure. The two panels are individually stamped from a blank and each has a flange along one edge and a toothed edge of alternating notches and tabs along the opposite edge. The two panels are assembled in box section forming relationship with the flanges of the two panels abutting with one another and the toothed edges abutting with one another with the tabs of the one panel interdigitating with the tabs of the other panel. Clamps are applied to the panels and urge the interdigitating tabs into tight fitting relationship. Then the panels are welded together at the interdigitating tabs and also at the abutting flanges to form the closed box section structure. The toothed edges of the panels preferably extend generally normal to one another and the length of the tab is not substantially less than the length of the notch which receives the tab so that the interlocking tabs and notches align the panels longitudinally relative one another pending the welding together of the panels. The weld may be a single sided spot resistance weld, an arc weld, or a laser weld.
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Kresse, Jr. Alfred L.
Nagel Gregory L.
General Motors Corporation
Leahy Charles E.
Zimmerman John
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