What is another term for a fillet weld?

A fillet weld is specifically designed to join two pieces of metal at an angle, often forming a triangular cross-section. The term "T-weld" is commonly used to refer to this type of weld because it forms a "T" shape between the two joined metal parts. This terminology helps differentiate it from other types of welds, such as spot welds, seam welds, or parent welds, which serve different functions and have different geometries.

"Spot weld" refers to a weld that is localized to a small area, often used in sheet metal fabrication. "Seam weld" is a continuous weld along the length of a joint, typically used for welding sheets or strips together. "Parent weld" could imply the original pieces being joined before any welding takes place, and this terminology is less common and does not specifically describe the type of weld being referenced. Therefore, "T-weld" is the most accurate alternative term for a fillet weld.