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 0.020″ (0.5mm). These fast weld times minimize heat buildup, resulting in welds with very little distortion, discoloration, or burning. Therefore, this type of process is often used when appearance is a critical product feature. The CD stud welding method, used mainly for welding mild steel, stainless steel, and aluminum studs, includes two primary techniques: contact and gap. Both require a specially designed stud with a projection, or ignition tip, on its weld end. This tip provides accurate welding time control with precise repeatability.
This process creates high integrity welds even on thin gauge materials. Additionally, it allows the welding of dissimilar metals because the weld penetration is so slight that metallurgical problems are prevented. The quality, productivity, and cost advantages include: attractive appearance with minimal burn, strength in lightweight applications, minimal backside marking, a fast process with fewer assembly steps, labor savings, and fabrication savings.
Providing quick welds on lightweight or thin gauge materials with little to no distortion, CD welding can be used for: jewelry, hardware, cookware, electrical, houseware, electrical/electronic, and doors. More information is available on our capacitor discharge (CD) equipment, accessories, and consumables.
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