What is the purpose of tack welding?

Tack welding serves the specific purpose of temporarily holding components in place before the final welding process is carried out. This technique involves making small, short welds that effectively secure the pieces together, preventing movement during the subsequent welding phases. By maintaining the alignment and positioning of the components, tack welding ensures that the final welds are accurate and properly placed, resulting in a stronger and more precise finished product. This step is critical in ensuring that the pieces do not shift or misalign, which can occur due to the heat and stress involved in the welding processes that follow.