Capacitor energy storage stud welding

What is capacitor discharge stud welding?

Capacitor Discharge stud welding is a process that eliminates the need for drilling, tapping, punching, riveting, gluing, and screwing. It is especially beneficial for working with thin gauge materials due to the absence of reverse-side marring or discoloration. This process is suitable for studs ranging in size from #4-40 (M3) thru 3/8-16 (M10).

What power sources are used in arc stud welding?

One type uses dc power sources similar to those used for shielded metal arc welding. The other type uses a capacitor storage bank to supply the arc power. The arc stud welding processes using these power sources are commonly known as arc stud welding and capacitor discharge stud welding respectively.

What are the different stud welding methods?

Learn more about the differences between Drawn Arc, Short Cycle, and Capacitor Discharge (CD) stud welding methods. Capacitors are charged to a predetermined setting on the power supply. When triggered, the stored energy is "discharged" and the burst of electricity creates the molten pool. The gun pushes the stud down into the molten pool.

What is stud welding?

Stud welding is a general term for joining a metal stud or similar part to a workpiece.1 Welding can be done by a number of welding processes including arc, resistance, friction, and percussion. The arc stud welding process (SW), including capacitor discharge methods, will be covered in this document.

What is CD stud welding?

CD studs have a special tip on the end that is consumed during the weld. Application Recommendations: For non-structural applications with a rapid attachment and an undisturbed backside finish. With drawn arc stud welding, the operator uses a weld tool, or gun, to place the stud against the base metal.

How do stud welding guns work?

Stud welding guns are used to hold the studs and move them in proper sequence during welding. There are two basic power supplies used to create the arc for welding studs. One type uses dc power sources similar to those used for shielded metal arc welding. The other type uses a capacitor storage bank to supply the arc power.