A second joining flange formed along an edge of a second panel and a third joining flange formed along an edge of a third panel are superimposed on a first joining flange formed along an edge of a first panel, a seam weld is made in a section in which the first joining flange and the second joining flange form two layers and a section in which the first joining flange and the third joining flange form two layers, and a spot weld is made in a section in which the first joining flange, the second joining flange and the third joining flange form three layers. Such structure enhances the production efficiency by increasing welding speed and makes it possible to spot weld in the section having three layers, for which seam welding is difficult due to the large number of superimposed sheets, thus enhancing the strength against peel-off.
WELDED STRUCTURE FOR VEHICLE BODY PANEL
2015-10-08
Patent
Electronic Resource
English