Hi I have a question. We have a millermatic 300 at work it is attached to a rotating welding fixture it welds a 8" diamater girth weld all you do is load the part and turn it on. the problem is on about every other part it will leave a whole in the weld not poreosity or (gas) just one single whole that is about the diamater of the wire .035 it dosent always leave the whole in the same spot it varies. We also wipe all parts down so there is no oil on them.The gas by the way is 75/25 and welding mild steel.I have tried everything I can think of so any help would be appreciated. Thanks
No announcement yet.
Pick your brain