Design and function
MIG/MAG welding
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099-005545-EW501
17.12.2020
Interval
Figure 5-22
Start
• Press and hold torch trigger.
• Shielding gas is expelled (gas pre-flows).
Sequence
• Arc ignites after the wire electrode makes contact with the workpiece at creep speed.
• Welding current flows.
• Wire feed speed increases to the set nominal value.
• The wire feed stops after the spot time elapses.
• Arc is extinguished after the wire burn-back time elapses.
• The process is repeated when the pause time is over.
End
• Release torch trigger, wire feed stops, arc is extinguished, gas post-flow time elapses.
If the pause time is less than 3 s, wire creep only takes place in the first spot phase.
When the torch trigger is released, the welding process is also ended even before the spot time elapses.
5.2.8 Conventional MIG/MAG Welding (GMAW non synergic)
You can only change the JOB number when no welding current is flowing.
3s
Figure 5-23
