Solutions: :
1. Increase the advancing speed. Adjust the torch angle.
2. Increase arc voltage.
Splashing
Possible Reasons:
1. Welding wire creates short-circuit by contacting to the workpiece.
2. C02 is used as shielding gas.
3. Welding process is performed with global conduction by using argon gas.
Solutions:
1. Increase the arc voltage. If you are operating with short circuit conduction, limit the
current increase by increasing the inductance in welding machine.
2. Decrease the arc voltage or immerse the arc by increasing the wire feeding speed, so“”
limit the splashing.
3. By increasing the current, enter into spray conduction mode.
Edge Burn
Possible Reasons:
1. Advancing speed is too high.
2. Welding voltage is too high.
3. Welding current is too high.
4. Waiting time is insufficient.
5. Torch angle is wrong.
Solutions:
1. Decrease the advancing speed.
2. Decrease the voltage.
3. Decrease wire feed speed.
4. Wait more in the edges of molten weld puddle.
5. By adjusting the torch angle, enable arc to route the molten metal.
Expressweld MasterMIG 500W
Page 36
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