CUTTING WORK Metal fabrication is the creation of metal structures by cutting, bending and assembling processes. It is a value-added[1] process involving the creation of machines, parts, and structures from various raw materials. Typically, a fabrication shop bids on a job, usually based on engineering drawings, and if awarded the contract, builds the product. Large fab shops employ a multitude of value-added processes, including welding, cutting, forming and machining.