what is welding and fabrication

Welding is a fabrication process where two or more parts are fused together by means of heat, pressure, or both, forming a join as the parts cool. Welding is only one step in the process of fabrication, which is the overall process of manufacturing metal products. Fabrication involves taking raw stock material and creating an end product, which can include designing products, cutting, bending, forming, and finishing. Welding is often a part of the fabrication process, but fabrication can be done without welding. In most fabrication projects, welding is used during the assembly process to join the critical components shaped by cutting, bending, and forming.