NURIS MIG 550 RWS Operational Manual page 17

The common problems identified for a good quality weld are given in the below table
Most Common Welding Quality Problems
Long and unstable arc
Powerless arc
Droplets are splashing
Insufficient welding filling
Porous welding
Bad welding filling
Uneven welding
Penetration is insufficient
The wire feeder and welding power source is manufactured in accordance with TS-EN
60974-1. The service lifetime is 10 (ten) years.
Possible causes and solutions
* Welding voltage is of high value
according to wire diameter and wire
feed speed
* Welding voltage is of low value
according to the wire diameter and wire
feed speed
* The voltage is too high
* The gas nozzle is not cleaned properly
* Wire speed is set incorrectly
* Welding speed is higher than it should
be
* Wire feed speed is lower than welding
speed
* Wire diameter is not suitable for the
job
* The gas level is too low or too high
* Splashed droplets accumulate in the
gas nozzle and cause insufficient gas
flow
* The air flow in the welding area
neutralizes the shielding gas
* The material to be welded may be
moist, oily, rusty
* Irregular use or incorrect contact part
is used
* Low welding voltage selected
* Irregular welding speed used
* Wire speed is very high compared to
the voltage value
* Welding speed is very low
* Wire feed speed is very low compared
to voltage
11
08/2022 Rev. 1.3