It is possible with this machine to adjust the frequency of the AC Square Wave output. It means that the amount of time that it takes the AC square wave to complete a full
cycle switch from positive (+) to negative (-) can be adjusted from 20Hz (20 times per second) to 200Hz
Increasing frequency (Hz) causes the current to change direction more often, which means that it spends less time per cycle in both DC electrode negative and DC electrode
positive mode. By spending less time at each polarity, the arc cone has less time to expand.
A higher frequency produces a narrower arc cone producing an arc that is tighter with more focus at the exact spot the electrode is pointing. The result is improved arc stability,
ideal for fillet welds and other fit ups requiring precise penetration. Decreasing the frequency softens the arc and broadens the weld pool producing a wider bead, produces
good overall penetration and ideal for build up applications.
Current
Increasing Square Wave Frequency
Slower AC Square Wave Hz
Wider Arc
Broader Weld Pool
Wider Weld Bead
Wider Cleaning
Action
Faster AC Square Wave Hz
Narrow Arc
Narrower Weld Pool
Narrower Weld Bead
Faster Weld Speed
Narrower Cleaning
Action
Current
Current
Slower AC Square Wave Hz
Faster AC Square Wave Hz
AC Square Wave Hz
20
| VIPER TIG 180 AC/DC Manual
AC SQUARE WAVE FREQUENCY
CONTROL
0342 VIPER TIG 180 ACDC Product Manual SEP19 v4.indd 20
26/09/2019 1:14:58 PM
AC Square Wave Frequency Control
It is possible with this machine to adjust the frequency of the AC Square Wave output. It means that the
amount of time that it takes the AC square wave to complete a full cycle switch from positive (+) to negative (-)
can be adjusted from 20Hz (20 times per second) to 200Hz
Increasing frequency (Hz) causes the current to change direction more often, which means that it spends less
time per cycle in both DC electrode negative and DC electrode positive mode. By spending less time at each
polarity, the arc cone has less time to expand.
A higher frequency produces a narrower arc cone producing an arc that is tighter with more focus at the
exact spot the electrode is pointing. The result is improved arc stability, ideal for fillet welds and other fit
ups requiring precise penetration. Decreasing the frequency softens the arc and broadens the weld pool
producing a wider bead, produces good overall penetration and ideal for build up applications.
AC TIG WELDING GUIDE
52
Содержание Xcel-Arc MULTI 230 AC/DC
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