Benzine
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| posted on 4/7/08 at 12:55 PM |
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MIG welding stainless - !!NOW WITH AWESOME MS PAINT DIAGRAM!!
Is a 75% argon / 25% CO2 mix okay for welding stainless or should I get a bottle of pure argon?
I'm trying to weld some 1.5mm thick stainless at the moment and I just can't get the hang of it, any tips? Wire feed/power etc?
Cheers
[Edited on 4/7/08 by Benzine]
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tegwin
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| posted on 4/7/08 at 01:42 PM |
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I found I had to whack up the power really high, increase the feed rate to prevent the wire welding to the tip...Even then the weld quality was
poor!...
U should really use pure argon, but a mix ith some co2 would make the welding a lot easier....
Its not easy or pretty....Dont think I will try it again with a hobby welder!
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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Benzine
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| posted on 4/7/08 at 01:46 PM |
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I've just lowered the feed rate and power and I'm getting better results but still not great. With a higher power it was
distorting/blowing holes.
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Benzine
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| posted on 4/7/08 at 02:14 PM |
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Here's a diagram of what I've been welding. Figure A is when two sheets meet, this I can weld really well, v happy with it. But when
I'm welding in a 90 degree angle it all goes down the pan  What am I doing wrong?
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Ivan
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| posted on 4/7/08 at 02:23 PM |
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I seem to recall reading something about swapping the +ve and -ve leads for stainless welding - or was it for some other metal?
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02GF74
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| posted on 4/7/08 at 02:35 PM |
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quote:
Originally posted by Ivan
I seem to recall reading something about swapping the +ve and -ve leads for stainless welding - or was it for some other metal?
alumiumium I think.
here are some tips I wrote especially for ya
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UncleFista
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| posted on 4/7/08 at 02:46 PM |
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quote:
Originally posted by Ivan
I seem to recall reading something about swapping the +ve and -ve leads for stainless welding - or was it for some other metal?
I don't think so, but I do know you have to swap +ve and -ve when you switch between gas and gasless wire.
Tony Bond / UncleFista
Love is like a snowmobile, speeding across the frozen tundra.
Which suddenly flips, pinning you underneath.
At night the ice-weasels come...
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Benzine
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| posted on 4/7/08 at 03:22 PM |
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quote:
Originally posted by 02GF74
here are some tips I wrote especially for ya
^__^ thanks for the link, picked up some great tips. I'm really getting the hang of it now and I'm getting some excellent welds! I think I
was just rushing it to much and I wasn't really concentrating on the bead. Also I've set up the work piece in a much better position to
work on.
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Volvorsport
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| posted on 4/7/08 at 04:36 PM |
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nozzle needs to be poking out of the shield , to prevent spatter , you need to work quickly with high settings . youre not looking for penetration !
www.dbsmotorsport.co.uk
getting dirty under a bus
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cjtheman
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| posted on 4/7/08 at 04:44 PM |
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i would use astec 5 gas we use it in work
it gives an awesome finish
a little bit more expensive but well worth it
cheers
colin
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kango
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| posted on 13/7/08 at 06:06 AM |
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With regard to the gas used.
Is there a gas that you can use for mig and tig.
It looks like one gets a better result using tig on SS. Also nice once migged to go over it with the tig to neaten it up, but don't have space
for another bottle of gas?
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