What am I doing wrong? 
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]
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!
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.
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?
I seem to recall reading something about swapping the +ve and -ve leads for stainless welding - or was it for some other metal?
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?
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?
quote:
Originally posted by 02GF74
here are some tips I wrote especially for ya
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 !
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
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?