The different types of joints used for TIG welding are as follows:

Butt Joint:

Square-edge butt joint can be easily prepared and welded without filler rod. This Butt joint is mostly preferred for lighter materials. If you want to weld without filler rod, see to it that you avoid burning through the metal. Single-V butt joints are mostly used in materials that have thickness ranging from 3/8” to 1/2” to secure complete penetration. Double-V butt joint is preferable in metal that exceeds ½” thickness. Welding can be done on both sides.

Lap Joint:

Lap Joints are mostly preferred for metals that are ¼” or less in thickness. It can be welded with or without filler rod. This joint is not preferred for metals that exceed ¼” in thickness.

Corner Joint:

Filler rod is not required in corner joint on lighter metals that is upto 1/8” in thickness. But for heavy metals filler rod is required.

T-Joint:

A T-joint can be formed by inserting a piece of metal perpendicular to another to form a T-shape. Filler rod is very important to weld T-joints despite thickness of metal.

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Tags: TIG welding equipment, Welders, welding equipment