6 TIG WELDING
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6 TIG WELDING
Main menu → Process
TIG welding
TIG welding melts the metal of the workpiece, using an arc struck from a
tungsten electrode, which does not melt itself. The weld pool and the electrode
are protected by shielding gas.
Pulsed current
Pulsing is used for improved control of the weld pool and the solidification
process. The pulse frequency is set so slow that the weld pool has time to
solidify at least partially between each pulse. In order to set pulsing, four
parameters are required: pulse current, pulse time, background current and
background time.
6.1 Settings in the weld data setting menu
6.1.1 TIG welding without pulsing DC
Settings Setting range In steps of
HF/LiftArc™ HF or LiftArc™ -
Live TIG-start* - -
2/4 stroke 2 stroke or 4 stroke -
Current* 4 - 500 A 1 A
Slope up time 0 - 25 s 0.1 s
Slope down time 0 - 25 s 0.1 s
Gas pre-flow 0 - 25 s 0.1 s
Gas post-flow 0 - 25 s 0.1 s
HF automatic start pulse OFF or ON -
HF start pulse 4 - 500 A 1 A
Setting limits 0 - 50 1
Measure limits 0 - 50 1
*) Depending on which machine type is being used.
6.1.2 TIG welding with pulsing DC
Settings Setting range In steps of
HF/LiftArc™ HF or LiftArc™ -
2/4 stroke 2 stroke or 4 stroke -
Pulse current* 4 - 500 A 1 A
Background current 4 - 500 A 1 A
Pulse time 0.001 - 5 s 0.001 s
Background time 0.001 - 5 s 0.001 s
Slope up time 0 - 25 s 0.1 s
Slope down time 0 - 25 s 0.1 s
Gas pre-flow 0 - 25 s 0.1 s
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