Energy storage capacitor stud welding

How does capacitor discharge stud welding work?

The capacitor discharge stud welding operates on the principle of capacitor stored energy. The weld gun and the stud are positioned against the workpiece and energy stored in the bank of capacitors is discharged through a special weld stud pip across the contact.

What is capacitor discharge welding?

Capacitor Discharge (CD) stud welding, using very short weld times, permits the welding of small-diameter studs to thin, lightweight materials. The weld cycle can be completed in 0.01 seconds on material as thin as 0.5mm. These fast weld times minimize heat buildup, resulting in welds with very little distortion, discoloration, or burning.

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.

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 gap CD stud welding?

Gap CD stud welding is ideal when welding aluminum or non-ferrous alloys, which have an excellent ability to conduct heat. With slower techniques, the base material can draw heat away too fast for a weld to occur; but Gap CD welding’s fast weld times overcome this phenomenon.

What is a CD 700 welder?

The CD 700 is a capacitor discharge stud welder. The weld energy is storedin capacitors located inside the control unit. The amount of stored energycan be controlled by rotating the voltage control knob located on the frontpanel. CD weld studs, or pins, used with the CD 700 must have a speciallydesigned projection at the weld end.