Resistance welding

Resistance welding is used for joining two metals .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.

Pulse heat is an instantaneous heating method whereby heating is effected only when melting the solder or plastics melted by the resistance heat generated by flowing electric current to a heater tip/tool made of metal. Once the material is melted, electric current is stopped and cooled. Because he object is held down with pressure unit it is solidified, there is no lifting or shifting of parts, And as a result, highly reliable joining can be achieved.

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