Tig Welding Corner Joint

A corner joint consists of welding one piece of metal at a right angle to the edge of a second piece, thereby forming a corner. On light material up the 1/8” in thickness, no filler rod is required for a corner joint. With heavier metal the use of a filler rod is advisable. If the metal exceeds 1/4”, one of the two pieces of the joint should be beveled as in a single-V joint.