What is Resistance Welding?


A force and an electrical current are sent through an electrode that comes into contact with metal that is going to be welded. Where the electrode comes into contact with the metal, both resistance heat and a nugget are produced. The end result is a metal joint. Despite a large current coming from the power source, no shock hazard exists because only low voltages are being dealt with. Check out the video below of a resistance weld.

Resistance Welding Properties

It is extremely efficient in small amounts of time. Hence, it is ideal for large quantities of cheap products.

Compared to other forms of welding, resistance welding is a lot simpler because many times it just requires pressing a button to perform the process.

Heat affects less areas on the piece being worked on, which results in aesthetically pleasing products.

It is hard to see the quality of the product during the actual weld because it cannot be viewed from the outside.

Because of a large current, sometimes an electric facility is needed.

The welding parameters must be configured correctly before the actual weld is done. Parameters fluctuate because of the material used and how thick the product is that is being welded.