PRO-POINT 9085986 Mode D'emploi page 36

9085986
Weld sits on top, lack of fusion.
1. Insufficient heat input.
2. Workpiece dirty,
contaminated or moisture.
3. Poor welding technique.
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.
36
AC/DC Inverter TIG/Arc Welder
1. Increase the amperage or choose a larger electrode.
2. Remove moisture and materials like paint, grease, oil
and dirt, including mill scale from base metal.
3. Use the correct welding technique or seek assistance
for the correct technique.
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.
For technical questions call 1-800-665-8685
V1.0