/ alloy welder help asap please
the mig welder we use at work has starting welding badly but only since the wire was changed. the weld has started to look like there is no gas available but there is. we had an engineer out today and he thinks the problem could be that the pull mechanism in the torch not working would be the problem but i think otherwise.
the new wire is the same gauge but seems a lot stiffer than the old and we have been told there is a different amount of silicone in the new wire to the old. not sure what that means tho
anyone know if the wire could be problem and how its solved if it is
Have you actually tried changing the settings on the welder?
You sure you are using enough amps?
haha, i was thinking about the cables.
And i agree it sounds like they have the wrong type of wire compared to the material its used on.
Once spend a whole night grinding away welds because my colleague on the day shift had used wrong type of wire on a stainless chimney liner.
Double check you are not trying to use a Gasless wire in Gas bottle set-up. The gasless (flux-cored) wire needs the torch polarity to be swapped, so if you use it by accident you'll suddenly discover that you can't lay decent welds any more!!!!
I discovered this the hard way.
First though, change back to your old wire if you have any and see if that works ok. As suggested above.
> the new wire is the same gauge but seems a lot stiffer than the old and we have been told there is a different amount of silicone in the new wire to the old. not sure what that means tho
If the wire is the wrong material then you'd certainly have a problem. You're sure it's the right material? Someone could have stuck the wrong label on the drum.
Find out what wire and gas you are using and ask the question on the MIG welding forum
Which alloy are you welding?
Indeed, good suggestion. For my Tig, I've got several different rods for different alloys, and some have different % of silicone in them. Also check the drive wheels in the Mig aren't slipping.
Any photos of the 'bad' weld?
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