A1
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| posted on 26/4/09 at 10:25 PM |
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Mig Welding
started trying to fix up some bodywork today with a mig welder, but all the welds are really bad, they dont hold it very well and it seems like the
wire is melting then going into bobbles on the surface of the piece. its also blowing through a lot. what am i doing wrong? its 1mm thick steel, im
using the low power setting with 0.8mm wire.
cheers!
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blakep82
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| posted on 26/4/09 at 10:27 PM |
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piture tells a thousand words 
get some photos up! 
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Mark G
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| posted on 26/4/09 at 10:36 PM |
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not wanting to cause offence but are you an experinced welder? It could be the equipment or equally it could be your technique.
As above, try to upload some photo's if you can as its alot easier to tell what the problem is.
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a4gom
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| posted on 26/4/09 at 10:51 PM |
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is it clean? I mean the metal your trying to weld.
Andy
Perfect planning prevents pi$$ poor performance!
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A1
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| posted on 27/4/09 at 12:38 AM |
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im not exactly experienced, but i was taught during college. the equiipments brand new, so im guessing its me. i was thinking feed rate of wire/ angle
of handpiece to metal...
its pretty hard to get a decent angle certainly, but would this have a big effect?
yes, the metals pretty clean...
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t16turbotone
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| posted on 27/4/09 at 05:13 AM |
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ime no professional welder, but i think you should try using 0.6mm wire and argon mix gas.
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cjtheman
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| posted on 27/4/09 at 06:11 AM |
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hi
without any pictures it will be hard to tell but if i was going to guess i would sat to much heat and not enough wire feed
cheers
colin
wanted
sunny weather
sva pass 12/6/09
taxed 16/6/09
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stuart_g
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| posted on 27/4/09 at 06:55 AM |
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sounds like the wire feed may be too slow.
I was getting same thing while setting up my welder.
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MikeR
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| posted on 27/4/09 at 07:06 AM |
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0.6mm wire so you can put less power in.
Argo shield so the weld isn't as hot.
metal as clean as possible.
Then if its still doing it i've heard of a technique where people put down a series of tack welds. The idea being that with metal that thin you
get too much heat in with the welder so the tack welds are just good enough - although this stresses the welder as you keep stop starting.
Practice of lots of spare metal first.
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daviep
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| posted on 27/4/09 at 08:03 AM |
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Where about in Scotland are you?
Davie
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