Mig/Mag

Problem Possible cause

Porosity

Wire, gas or moisture on work pieceGas flow to lowTo much gas (turbulance)Gas nozle filled with spatters, diffuser dirty.Stick out to longGas leakageTo much arc voltageWorkpiece conterminatedDraftWork piece to hot

Slag inclusionsTravel speed tolowTo much wire speedWelding pushing (pulling with slag wires)

Binding failuresArc voltage to high / to lowTravel speed to high / to lowLow currentAngle of torch

CracksWrong welding technick (heat input to high)Wrong filler metal(stainles steel) ferrite to low

To much spatters

Arc voltage to lowTo much wire speedBad current carrying capacity (worn outcontact-tip)Inductance to lowWrong torch angleStick out to long

Irregular weld seam Scale wire speed / arc voltage wrongIrregular travelspeedIrregular stick out

Feeding problems

Worn out wire feed rollers Diameter wire does not fit the rollersBad conductivity (worn out contact tip)Demaged torch or torch to longRoller presure to lowReplace liner

Mig/Mag | Ceweld http://www.ceweld.com/en/content/migmag

1 of 2 31.01.2014 15:13

Mig/Mag | Ceweld http://www.ceweld.com/en/content/migmag

2 of 2 31.01.2014 15:13