a fusion weld, other than a butt, edge or fusion spot weld, which is approximately triangular in transverse cross-section.

Joining method of filling an inside edge with welding metal.

A weld where two pieces of metal or other material are welded together at a right angle on the inside of the joint.

Triangular shaped weld, which is made at the meeting place of two metal pieces, which are joined to each other at angles.

A weld, approximately triangular in cross, section, joining two surfaces essentially at right angles to each other in a lap, T, or corner joint.