What are the parts of the groove face that lie within the joint root referred to as?

The parts of the groove face that lie within the joint root are referred to as root faces. This terminology specifically identifies the area where two pieces of metal meet at their closest point, known as the root of the weld joint. The root face is critical because it is where the initial fusion occurs during the welding process, ensuring a proper bond between the materials being joined. Understanding this distinction is important for welders and engineers as it affects weld quality and strength.

The other terms listed refer to different aspects of the welding joint. For example, weld faces pertain to the surface left after welding, groove edges refer to the edges of the prepped joint, and base material refers to the original material before any welding takes place. Each of these components has its significance, but when specifically discussing the area within the joint root, the designation of root faces is the most accurate.