Projection Welding Machine

Projection welding machine is mainly used for projection welding processes. Projection welding process is a variation of spot welding. These machines are widely used for welding steel wire, shopping carts, assembling nuts and bolts and many other industrial applications. They are most suited for welding thick materials.

Working Principle
These machines are best suited if one desires to create a part with very little heat surface marks on one side of the panel. The process involves designing a projection on the alternate part of the panel and using large electrodes joined to the finished part. These projections act as the source of current for the welding process. When the two parts are joined together, these projections help to make contact between two parts. With the circulation of power, projections carry the current concurrently and are welded. Projections are generally semi-spherical or blunt conical type. This process is also known as Resistance Projection Welding.

Uses & Applications
Projection welding equipments are used for welding various materials including:

• Stainless steel
• Aluminium
• Low carbon steel
• Low alloy steel
• Crosswire products
• Metalworking