GMA (MIG) Welding: Understanding Fusion Welding Process

What type of welding process is GMA (MIG) welding?

A) laser welding process

B) fusion welding process

C) pressure welding process

D) resistance welding process

Answer:

The correct answer is Option B) - fusion welding process.

GMA (Gas Metal Arc) welding, also known as MIG (Metal Inert Gas) welding, is a fusion welding process. This means that the process involves melting and fusing materials together to create a strong bond.

In GMA/MIG welding, a consumable electrode wire is used to create an electric arc between the wire and the workpiece. The heat generated by the arc melts the base metals, and a shielding gas is used to protect the weld pool from contamination.

During the welding process, the molten electrode wire and the base metal merge together, forming a solid weld joint. This fusion of materials is the defining characteristic of fusion welding processes like GMA/MIG welding.

Overall, GMA/MIG welding is a versatile and widely used process in various industries due to its ability to create high-quality welds efficiently. Understanding the fusion welding nature of GMA/MIG welding can help in optimizing its application for different projects.