How are stitch welds characterized?

Stitch welds are characterized by their specific length, which is a crucial factor in understanding their application in welding practices. Stitch welds are defined as welds that consist of short beads stitched together at intervals, designed to provide adequate strength while reducing the amount of heat input, which can minimize distortion and damage to the materials being joined.

The standard for stitch welds indicates that each weld bead should be approximately 25 mm in length or more. This length not only provides sufficient bonding strength but also meets the engineering requirements for structural integrity in the applications where stitch welds are used. The size of these beads is fundamental to differentiating them from other weld types, allowing for effective inspection and quality assurance in welding practices.

Understanding the specifications of stitch welds is vital for ensuring proper application in various construction scenarios, primarily in metal structures rather than wooden ones, as indicated in the incorrect choices.