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Poor welding properties
Cause:
Wrong wire alloy and/or wrong wire diameter
Remedy:
Check the wire spool that has been inserted
Cause:
Wrong wire alloy and/or wrong wire diameter
Remedy:
Check the weldability of the base metal
Cause:
The shielding gas is not suitable for this wire alloy
Remedy:
Use the correct shielding gas
Cause:
Unfavourable welding conditions: Shielding gas is contaminated (by moisture, air), inadequate gas
shielding (weld-pool "boiling", draughts), contaminants in the workpiece (rust, paint, grease)
Remedy:
Optimise the welding conditions
Cause:
Welding spatter in the gas nozzle
Remedy:
Remove the welding spatter
Cause:
Turbulence caused by too high a rate of shielding-gas flow
Remedy:
Reduce the shielding-gas flow-rate. Recommendation:
Shielding-gas flow-rate (l/min) = wire diameter (mm) x 10
(e.g. 16 l/min for a 1.6 mm wire)
Cause:
Too large a distance between the torch and the workpiece.
Remedy:
Reduce the distance between the torch and the workpiece(recommended: 10-15 mm)
Cause:
Tilt angle of the welding torch is too large
Remedy:
Reduce the tilt angle of the welding torch
Cause:
Wrong diameter of wirefeed components
Remedy:
Use wirefeed components of the correct diameter
Poor wirefeed
Cause:
Braking force set too high
Remedy:
Set the brake to a looser setting
Cause:
Hole in contact tube is dislocated
Remedy:
Exchange the contact tube
Cause:
The wirefeed inner liner in the welding torch is defective
Remedy:
Check the wire inner liner for kinks, dirt etc.
Cause:
The wirefeed rollers are not suitable for the wire electrode being used
Remedy:
Use suitable wirefeed rollers
Cause:
The wirefeed rollers are exerting the wrong contact pressure
Remedy:
Optimise the contact pressure
Cause:
The wirefeed rollers are soiled or damaged
Remedy:
Clean the wirefeed rollers, or exchange them for new ones
Cause:
Inner liner dislocated or kinked
Remedy:
Exchange the inner liner
Cause:
The inner liner or wire inlet nozzle are of the wrong dimension
Remedy:
Ensure that the inner liner or wire inlet nozzle are correctly dimensioned
Cause:
The inner liner was kinked while being inserted
Remedy:
When inserting the inner liner, only touch and hold it near the infeed tube
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