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First beads
Posted: Wed Jan 14, 2015 5:55 pm
by Raffus
First beads. Any suggestions
Re: First beads
Posted: Wed Jan 14, 2015 6:11 pm
by noddybrian
If that's your first on ally congratulations - you are 99% there already - only seat time will improve consistency - only comment from someone that does'nt do alot of it is judging by the slight discoloration / soot & erratic etc zone you appear to have marginal gas cover - maybe borderline lack of flow maybe torch angle / stickout or cup size - I'm sure one of the aluminum gurus will reply soon - perhaps you could post your setup to make their life easier.
Re: First beads
Posted: Wed Jan 14, 2015 6:20 pm
by Superiorwelding
Looking good overall. Can you provide us your specs and machine? This will be most helpful in attempting to offer advise.
-Jonathan
Re: First beads
Posted: Wed Jan 14, 2015 7:07 pm
by Raffus
Everlast 210 ext.
100 amp
20% ac balance
Freq 120
35 or so on flow meter
17 air cooled with 2% lanthinated 3/32
Re: First beads
Posted: Wed Jan 14, 2015 7:23 pm
by aeroplain
If it were me, I'd say turn your gas down to about 15, amps up to 125, balance to 60-70% penetration, but I'm no expert.
Kent
Re: First beads
Posted: Wed Jan 14, 2015 8:57 pm
by Raffus
Ac balance up to 60 or ac high frequency.
Re: First beads
Posted: Wed Jan 14, 2015 9:12 pm
by Otto Nobedder
Raffus,
Don't turn the gas down.
Aluminum likes a lot of gas flow. I typically run 30-35 CFH with a #7 cup on a standard collet (no gas-lens)
Those beads are awesome for a first go!
The soot appears in the places your puddle swelled and "almost" touched your tungsten. Normal. Touch the tungsten, and you'll see a BIG black splotch.
Keep practicing. You've got the basics. Only time will make you better.
Steve S