|Capacitor Discharge Stud Welding is a
semi-automatic arc welding process that, in general, is used to attach
small diameter studs to thin gauge material.|
This CD process
operates on the principal of electrical energy stored in a bank of
capacitors that is instantaneously discharged by the power/control
equipment, through a special weld timing tip that is vaporized,
creating an arc. This allows the stud to melt and under
spring pressure is plunged into a molten puddle of parent material.
The entire process takes place in just a few milliseconds, thereby
allowing the fastener to be welded to thin sheet without pronounced
distortion, burn-through or discoloration.