Question

How is the principle of regelation applicable for welding?

Answer 1

Resistance welding is used for joining two metals.

It consists of a welding head, which holds the metal between its electrodes and applies pressure, and a welding power supply, which applies electric current to the metal to be welded.

Resistance generates friction heat when force is applied. Resistance welding utilizes this heat.

Similarly, when an electric current tries to move forward through two metals, heat is generated due to the resistance of the metal itself and the friction at the contact point.

Resistance welding welds a metal to another metal utilizing this heat and pressure.