Figure 6. Corner, Edge, Lap , and Tee Joints.

Welding Operations, I
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little or no filler metal is added. In arc welding, only a very

light bead is required to make the joint. The open corner joint,

shown in figure 6, view C, is used on heavier sheets and plates;

the two edges are melted down and filler metal is added to fill

up the corner.

Corner joints on heavy plates are welded from

both sides as shown in figure 6, view D.

The joint is first

welded from the outside, then reinforced from the back side with

a seal bead.