Stud welding, also known as “drawn arc stud welding”, joins a welding stud and another piece of metal together by heating both parts with an arc. The welding stud is usually joined to a flat plate by using the stud as one of the electrodes.
The polarity used in stud welding depends on the type of metal being used. Welding aluminum, for example, would usually require direct current electrode positive (DCEP). Welding steel would require direct current electrode negative (DCEN).(https://en.wikipedia.org/wiki/Stud_welding)
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Normally there is three types stud welding technique:
- Drawn arc stud welding with ceramic ferrule or shielding gas
- Short-cycle drawn arc stud welding
- Stud welding with tip ignition