just a question, Ive had a clarke 150tm for around 6 months now just doing light mot repairs on cars,nothing special just make it safe and make it pass, now I am aware the correct gas type to use is argoshield light or 75/25 argon co2 but as i already have a tig welder and dont do very much mig welding at all ive never bothered getting the argoshield and we have just been using the argon,yea sure the welds are a tad high but you can adapt technique to deal with this and all the welds are strong and penetrate properly ect, does anybody else do this? for exhausts and crap i just cant see the point in spending 100 quid a year on gas rent and 50 on a fill, am i missing something here?
- Thread starter squazy84
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cumbriasteve
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I think for the thinner material the correct argon mix is 90 or 95%, therefore a lot nearer 100% than what you thought.
I think I would be doing the same as you, if it's working and you are happy enough then it will do.
I think I would be doing the same as you, if it's working and you are happy enough then it will do.
shenion
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Will be tall welds with not a lot of side fusion. I have used pure argon as my supplier gave me it by mistake. Worked ok as llong as you run the welds hot and don't mind them being about twice as tall as they should be.
Note the "90-95%" argon mixes also have 2-3% of O2 that is about 8 times as effective as CO2 for adding heat and making the weld pool more fluid. So a 5% CO2 with 2% O2 is about the same as a 79/21% Ar/Co2 mix.
Note the "90-95%" argon mixes also have 2-3% of O2 that is about 8 times as effective as CO2 for adding heat and making the weld pool more fluid. So a 5% CO2 with 2% O2 is about the same as a 79/21% Ar/Co2 mix.
stealthbob
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Mine were...but I'm a fresh newb at welding.
I had difficulty with the blast through on a gaped patch panel, once I switched to the mix it made all the difference. To build the gap I was building HUGE welds!
Maybe with a bit more experience I may have been able to overcome the difficulties/differences of straight argon but this just happens be my first rodeo.
I had difficulty with the blast through on a gaped patch panel, once I switched to the mix it made all the difference. To build the gap I was building HUGE welds!
Maybe with a bit more experience I may have been able to overcome the difficulties/differences of straight argon but this just happens be my first rodeo.
stealthbob
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Vdub lover
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Yup I ran out of gas a while ago and I only had argon as said it's a higher weld but still good for smaller stuff like tacking etc
