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Special 4-step
mode
Spot welding The “Spot welding” mode is suitable for welding joins on overlapped sheets.
Procedure for spot welding:
Hold welding torch in the vertical
Press and release the torch trigger
Keep the torch in the same position
Wait until the end of the gas post-flow time
Lift the torch off the workpiece
The welding operation can be aborted by pressing the torch trigger a second time.
“Special 4-step mode ” is particularly suitable for welding aluminium materials. The spe-
cial pattern of the welding current curve takes account of the high thermal conductivity of
aluminium.
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