10.10 Lap Joint

The lap joint or the fillet joint is obtained by overlapping the plates and then welding the edges of the plates. The cross-section of the fillet is approximately triangular. The fillet joints may be 1. Single transverse fillet, 2. Double transverse fillet, and 3. Parallel fillet joints.

図10.10-1　すみ肉溶接

The fillet joints are shown in Fig. 1. A single transverse fillet joint has the disadvantage that the edge of the plate which is not welded can buckle or warp out of shape.