Lap Joint

Lap Joint

• A. Edge Joint
• B. Lap Joint
• C. Butt Joint
• D. Tee Joint

Answer: (B)

A lap joint is formed when two pieces overlap each other and are joined with welds along the overlapped area. This overlap creates a larger weld surface, making it easy to align parts and to accommodate different thicknesses or material access from one side. It’s a practical choice when you need a stronger weld path or when you’re joining sheets that may not lay perfectly flat. This differs from other common joints: an edge joint welds along the facing edges with no overlap, a butt joint has the pieces end-to-end and welded in the plane of the joint, and a tee joint connects a piece at a right angle to the surface of another. The key clue for recognizing a lap joint is the overlap of the pieces being welded together.

A lap joint is formed when two pieces overlap each other and are joined with welds along the overlapped area. This overlap creates a larger weld surface, making it easy to align parts and to accommodate different thicknesses or material access from one side. It’s a practical choice when you need a stronger weld path or when you’re joining sheets that may not lay perfectly flat.

This differs from other common joints: an edge joint welds along the facing edges with no overlap, a butt joint has the pieces end-to-end and welded in the plane of the joint, and a tee joint connects a piece at a right angle to the surface of another. The key clue for recognizing a lap joint is the overlap of the pieces being welded together.