Spot welding

The primary use of resistance spot welding is to join overlapping sheets of metal when the joint does not have to be gas or liquid tight.

Manufacturing using this process is inexpensive and fast as no separate fasteners are required.
Although commercial assembly production is generally limited to sheet thicknesses up to about 0,125 inches, plates of up to 0,25 inches or more.

Spot welding is used to manufacture many sheet metal products, like household appliances, car bodies, enclosures and furniture. The process can be easily automated and a variety of resistance welding machines are available from various sources.. Most metals can be resistance welded if required equipment is used and proper welding programs are followed.

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