Difference Between Spot & Seam Welding

Spot Welding

• Spot welding is most often used to connect metal parts that are usually around 3 mm thick. The material to be welded is put between two copper electrodes. Electric current flows through the material to weld the two metals while pressure on them is maintained.

Seam Welding

• Seam welding is more complicated than spot welding. Two copper wheels replace the electrodes present in spot welding. The wheels create seams along two pieces of metal that bind them together. Seam welding is used to make items such as fuel tanks.

Benefits

• Spot and seam welding have been used for many years to help make many different kinds of objects. Metal enclosures and other complex metal creations can be made more structurally sound due to spot and seam welding.