Just wondering what would be the thickest metal I could weld with my sip cosmo 100 amp ac arc welder. The manual says 5mm, but is this thickness realistic?
malcolm did a clarke 90 4mm test here i would say the cosmo is unlikely to do it unless it is v grooved with a root gap just read the tutorial above
hth dave
malcolm did a clarke 90 4mm test here i would say the cosmo is unlikely to do it unless it is v grooved with a root gap just read the tutorial above
hth dave
Malcolm's 4mm test was done with a MIG welder. Dave is asking about an arc welder. I suggest there's a big difference in penetrative power, which is why arc welders have a reputation for blowing holes in anything too thin. This works to an arc welder's advantage with thicker metal.
If the Cosmo marketing number is 100, I guess the actual maximum amps may be only 80 or 90. It must be worth a go with 5mm steel. I know my Cosmo 150 (actually 140 amps) would do that, but I'm less sure about a "100" model. If you could apply a weld to each side, it should be easy. Try it and see!
Thanks for replying. I think I'll get a bigger arc machine anyway. I have a Clarke 100en MIG for thin stuff, but get the odd thick stuff now and again for repair - nothing structural though, I leave that to the experts.