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Oxidation
Tungsten inclusions
Porosity
Hot cracking
1. lnsufficient gas.
2. No protection on the back side.
1. lncorrect electrode sharpening.
2. Electrode too small.
3. Operating failure (contact of the
tip with the workpiece).
1. Dirt on the edges.
2. Dirt on the filler material.
3. Excessive travel speed.
4. Current intensity too low.
1 Unsuitable filler material.
2. High heat supply.
3. Dirty materials.
If all recommended possible areas of
misadjustment have been checked
and the problem persists, >=C02C
H>DA;>20; 8=2>;=DC7>A8I43
84;3'4AE824028;8CH
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