You’ll often hear the terms fabrication and welding if you work in the metalworking sector. Although people often use the terms interchangeably, there is a clear distinction between welding and fabrication. What is the difference between fabrication and welding? One way to explain it is that fabrication refers to the entire process of making metal. Welding is just one part of the fabrication process. Although fabrication can include welding, welding is still apart. While you can make metal parts without welding, welding is a necessary part of fabricating your final product.