I use pure Argon and wire size is 1 mm. The liner is Teflon. Ihave tried a lot of differnt settings in different thicknes of aluminium plates. I have an 30 year old 185 A mig welder that works fine with same gas botle and similar wire alloy. I will later this evening get you a picture of the welds.I seen an aluminium ramp made with a Caddy by a large company and the welds looked like something the dog just curled down.
I just put it down to a **** welder doing the job, sure it should be able to produce a decent weld in the correct hand tho.
Richards the man, he will have done ally with it.
What size wire you using? Are you using a Teflon liner and pure argon as chap above said?
Can you post a pic of your weld and machine settings
MOD: language edit
Plate thicknes is 3 mm. The weld in left down corner is from my old mig. The rest is from the brand new Caddy 200i in differnte voltage and wire speed settings. The Caddy is in manual mode AL. I am not an experiensed welder but can produce fine welds with my old mig welder. I bought the portable Caddy to be able to move the welder around i an aluminium boat. The old one is to heavy to move around. Sorry for bad spelling // BoI use pure Argon and wire size is 1 mm. The liner is Teflon. Ihave tried a lot of differnt settings in different thicknes of aluminium plates. I have an 30 year old 185 A mig welder that works fine with same gas botle and similar wire alloy. I will later this evening get you a picture of the welds.
It is not possible to change Inductance seting in AL mode. It is locked in 10. I will try your recomendation tomorrov / ThanksOK something is dialled up wrong on the caddy machine then. The caddy being an inverter and your old machine being a transformer. Ok you have exited synergic mode and now in manual.
Dial up 21v and 350 IPM and turn the inductance maybe I/2 way to start.
Try that for starters and tweak settings from there.
Metall is heating during testweld and I tried max voltage and various wire feeds. i some cases it is burning towards the tip.looks pretty cold, you will want to be at nearly max amps for that sort of thickness, especially when the metal is stone cold. Is the feed consistent or is the wire burning back towards the tip?
OK wasn't sure on caddy I have an oerlikon Citomig and miller, yep so try that and we can dial some adjustments from there thenIt is not possible to change Inductance seting in AL mode. It is locked in 10. I will try your recomendation tomorrov / Thanks
Morning I have tried the proposed settings. 3mm AL carfully wirebrusched with stainless steel wirebrusch. Some pushed and some pulled and Argon flow varied between 4- 10l/m. Pic setting and weldsOK wasn't sure on caddy I have an oerlikon Citomig and miller, yep so try that and we can dial some adjustments from there then
4 lpm is way too low. What size torch are you using? 150 or 250 amp? Never pull ally mig, you must push. What wire are you using? 4043,5356,5183?
Does the machine actually weld nicely on mild steel or is it just as bad? It may be faulty.
Tried to crank the speed up as sugested. The weld is now hotter but it still lookes like dog sh.t. Gas flow now 15 l/ min.Right that's certainly better. Now crank the wire speed up to 375IPM and 400ipm, 425 and 450. Your wire speed looks a bit slow and making weld cold. Make sure you have about 15lpm gas flow.
Try those then, once you crank up a bit I think you will be close. You don't want a bacon frying sound with ally, if you get to that you are too high on wire speed. More of a hum once it's dialled up right.
Jim he says he can't turn the inductance down from 10 do you know what the deal is with that. i don't have a caddy. I told him to turn the inductance a little too as well as the.other settings I said but says the inductance is set max
and turn the inductance maybe I/2 way to start.
Try that for starters and tweak settings from there.