PRO-POINT ARC 170 Manuel D'utilisation page 41

V1.0
Lack of penetration.
1. Insufficient heat
input.
2. Poor welding
technique.
3. Poor joint
preparation.
Excessive penetration - burn through.
1. Excessive heat input.
2. Incorrect travel
speed.
Uneven weld appearance.
Unsteady hand,
wavering hand.
Electrode welds with different or unusual arc characteristic.
Incorrect polarity.
Distortion − movement of base metal during welding
1. Excessive heat input.
2. Poor welding
technique.
3. Poor joint
preparation and or
joint design.
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ARC 170 DUAL VOLTAGE ARC/TIG WELDER
1. Increase the amperage or choose a larger
electrode.
2. Use the correct welding technique or seek
assistance for the correct technique.
3. Check the joint design and fit up, make sure
the material is not too thick. Seek assistance
for the correct joint design and fit up.
1. Reduce the amperage or use a smaller
electrode.
2. Try increasing the weld travel speed.
Use two hands where possible to steady up,
practice your technique.
Change the polarity, check the electrode
manufacturer for correct polarity.
1. Reduce the amperage or use a smaller
electrode.
2. Use the correct welding technique or seek
assistance for the correct technique.
3. Check the joint design and fit up, make sure
the material is not too thick. Seek assistance
for the correct joint design and fit up.
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