Capacitors for Welding Technology

Capacitors are used for the storage of electrical energy in numerous welding processes – for example, in resistance welding, induction welding, stud welding, ultrasonic welding, tungsten inert gas welding and capacitor spot welding. 

The impulsive discharge of the capacitors results in high energy input at the start of the welding up to a peak value and subsequent decrease of the current. For these applications the capacitors must have good pulse resistance and high power density.