weld types

Stitch welding is not a continuous weld across a joint, but a weld broken up by space gaps in between welds, which results in a “stitch” look. It is not as robust and durable as a seam weld. It is used to prevent heat distortion and to also reduce the cost of welding if a long continuous weld is not necessary.

What is a stitch weld?

It is used to prevent heat distortion and to also reduce the cost of welding if a long continuous weld is not necessary. There are two common types of stitch welds, filletweld and butt joint weld. A fillet weld is a triangular seam weld that joins two surfaces at right angles to each other.

What does stitch weld mean?

Definition of stitch welding. : resistance welding in which the weld is made linearly (as between rotating wheels) by a series of spot welds that are spaced rather than overlapping (as in seam welding).

What is a tack welding?

After items to be welded together have been positioned as required, generally by clamping them on suitable fixtures, tack welds are used as a temporarymeans to hold the components in the proper location, alignment, and distance apart, until finalwelding can be completed.