Patent ID: 9676421
Date: 2017-06-13
CPC Classifications: B23K,B62D,Y10T

Claim:
1. A welded structure for a vehicle body panel in which 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 first seam weld is made using a roller electrode in a first section in which the first joining flange and the second joining flange are overlapped to form two layers, the first seam weld disposed substantially at a fixed distance in relation to a longitudinal edge of the first joining flange, a second seam weld is made using a roller electrode in a second section in which the first joining flange and the third joining flange are overlapped to form two layers, the second seam weld also disposed substantially at a fixed distance in relation to the longitudinal edge of the first joining flange, and a spot weld is made in an intermediate section situated between the first and second sections, in which: end parts of the second joining flange and the third joining flange overlap one another on a side of the second joining flange opposite the first joining flange and the third joining flange bends outwardly away from the first joining flange to form a gap portion or a step portion therebetween, and the first joining flange, the second joining flange and the third joining flange all overlap one another to form three layers.