Q on MIG amperage for flux wire welding
Posted: Thu Jul 12, 2018 2:49 am
Hi guys, a total Newbie who has trouble even spelling welding let alone actually doing it!
OK, I bought a new UNIMIG 190 MIG/TIG/STICK welder about 12 months ago, as a typical DIY'r, did very little work with it, am now all inspired again but I firstly noticed that on the AMP meter, one or two of the the little LCD bars were blank - pretty normal for LCD - but now they have all disappeared and I am left with a blank dial! The small green light under the knob is illuminated nonetheless!
Having said that, I have been told that for straight MIG welding using flex wire, that amperage is not part of the equation anyway?
When I check the manufacturers recommended settings for MIG welding, it simply gives me advice that only includes Voltage and Wire Speed i.e. Amps are not even included............. e.g. 20V & 9 WS
My pretty sad welds seem to be looking not all that bad so should I or shouldn't I have to set up AMPS for this MIG welding on steel? It may(?) just be the AMPERAGE dial that has had it as when I had a fiddle with it's knob - as you do - all of a sudden my welds started coming out pretty dreadful looking with loads of spatter, holes and far from what I was getting before I started messing with the knob.
Or, do the AMPS only popup for other functions like Stick or Tig welding!
Totally confused!
Many Thanks
OK, I bought a new UNIMIG 190 MIG/TIG/STICK welder about 12 months ago, as a typical DIY'r, did very little work with it, am now all inspired again but I firstly noticed that on the AMP meter, one or two of the the little LCD bars were blank - pretty normal for LCD - but now they have all disappeared and I am left with a blank dial! The small green light under the knob is illuminated nonetheless!
Having said that, I have been told that for straight MIG welding using flex wire, that amperage is not part of the equation anyway?
When I check the manufacturers recommended settings for MIG welding, it simply gives me advice that only includes Voltage and Wire Speed i.e. Amps are not even included............. e.g. 20V & 9 WS
My pretty sad welds seem to be looking not all that bad so should I or shouldn't I have to set up AMPS for this MIG welding on steel? It may(?) just be the AMPERAGE dial that has had it as when I had a fiddle with it's knob - as you do - all of a sudden my welds started coming out pretty dreadful looking with loads of spatter, holes and far from what I was getting before I started messing with the knob.
Or, do the AMPS only popup for other functions like Stick or Tig welding!
Totally confused!
Many Thanks