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Arc welding problems
1.
Stick electrode ‘blasts off’ when arc is struck
Welding current set too high, reduce welding current
Materials are dirty – clean before welding
2.
Excessive Splatter
Long arc – get electrode closer to work
Welding current too high, reduce welding current
3.
Insufficient penetration
Too fast welding speed, slow down travel speed
Welding current set too low, increase welding power
4.
Porosity in weld
Humidity in electrodes
Long arc – get electrode closer to work
TIG welding problems
1.
Tungsten electrode ‘blasts off’ when arc is started
Welding current set too high, reduce welding current or use larger diameter tungsten
No shielding gas present, check gas supply
2.
Tungsten electrode melts back towards torch when arc is started
Ensure torch is in the negative (-) power outlet
3.
Insufficient penetration
To fast welding speed, slow down travel speed
Welding current set too low, increase welding power
4.
Porosity in weld
No shielding gas present, check gas supply
Contamination on work piece, clean with suitable brush etc
