Capacitor discharge projection welding is a resistance welding process. In this process, a bank of capacitors is charged to a pre-set voltage and then discharged through the pulse transformer. This results into delivery of very high current through the component to be welded. The weld time is less as it is the time of discharging the capacitors.As the weld time is between 3 to12 milliseconds, there is negligible heating and blackening of components. Water cooling is not required for the machine due to less weld time. Capacitor discharge technology offers reliable weld quality along with excellent aesthetics.
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