Which joint configuration is commonly used when two pieces overlap one another?

The choice of lap joints for the configuration where two pieces overlap one another is rooted in both the strength and ease of fabrication associated with this joint type. In a lap joint, one piece is laid over another, creating a surface area where they are bonded together. This overlapping nature not only helps in distributing loads across a broader area but also increases the overall strength of the assembly.

Lap joints are particularly advantageous when dealing with materials of different thicknesses, as they allow for joints that can be welded without requiring extensive preparation of the edges. This makes them ideal for various applications in welding, where time and material costs need to be considered. Additionally, lap joints have a higher resistance to shear forces compared to other joint configurations, further enhancing their use in structural applications.

In contrast to other joints, such as T-joints which connect at right angles, corner joints that meet at edges, and edge joints where pieces are aligned in the same plane but are joined along their edges, lap joints are specifically designed for situations where overlapping is a primary feature. This makes them the most suitable choice for scenarios requiring a robust and reliable connection between two overlapping pieces.