The Short Cycle SC Process

The Short Cycle (SC) Process This process is the same as Drawn Arc (DA) but operates over a much shorter time period - up to 100 milliseconds. Ceramic Arc Shields (Ferrules) are not required with this process but shrouding with gas can improve weld fillet formation especially when welding Stainless Steel studs. Capacitor Discharge studs may be used with this process. Contact our office A Transformer rectifier supplies a fixed current power source. Triggering produces a pilot arc and the stud lifts to a pre-set height. The main arc melts the end of the stud, producing a molten pool in the parent material. Return spring pressure then forges the stud into the pool. Using a shrouding gas reduces weld spatter especially with stainless steel. -------------------------------------------------------------------------------- Process Short Cycle gives greater penetration into the work piece that CD. When the surface is uneven, and DA would burn through the parent material, then SC should be used. Material The sheet thickness for SC should be greater than 1.5mm. Main applications are with Mild Steel but can also be used with Stainless Steel. More suitable than CD where surface is uneven, coated with oxide, mill scale or dirt. Equipment Medium weight & hand portable controllers. Lower cost than DA but more than CD. Three phases 380/415 volt 50HZ Advantages Low cost studs. Greater stud design flexibility due to no pip on the weld end. Equipment can be bench mounted and automated. Tolerates surface irregularities. Easy to jig. No ferrules.

For more information on The Short Cycle SC Process talk to Taylor Studwelding Systems Ltd