Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process
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exnailpounder wrote:
Mattwho777 wrote:
exnailpounder wrote:Hard to tell from the pic but is your AL clean? There's a whole lot going on there. Can you send a better pic?
It was cleaned, I'll try some more tonight and take some more pics...
Pics always help. Send in your settings too. Helps to know everything you're doing. We'll get it straightened out...we always do 8-)
No problem

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What kind of filler metal are you using?
A student now but really want to weld everyday. Want to learn everything about everything. Want to become a knower of all and master of none.
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Hey Matt...are you having these problems when you add filler? What happens when you just try getting a puddle and then advancing with no filler? Gonna be a lot of questions as we have to use the process of elimination here. Another thing...what is your balance set at? I don't know your machine so if you can find out what the optimum balance setting is, set it there and try it and see what happens. Trying to eliminate everything before we get to gas. I'm leaning towards the machine settings because you don't have alot of black soot around your welds, they are just crapped up really bad so it might not be gas at all.
Last edited by exnailpounder on Fri May 05, 2017 9:12 pm, edited 1 time in total.
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Your gas supplier should analyze your bottle for free, if you take to them. I would do this. The last likely cause beyond a gas issue (since it welds fine on DC) is an internal machine issue with the AC mode. Everlast is great at handling those, but I'd rule out the gas first for certainty.

The last time I experienced welds like this on HFAC aluminum was with a water-cooled torch, and I discovered the company the machines were rented from used (hard Pennsylvania) tap water and cheap automotive antifreeze for coolant. The HF would conduct through this mess, and I don't understand the damage, but it would start welding like yours, so I suspect a machine issue.

Steve
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Otto Nobedder wrote:Your gas supplier should analyze your bottle for free, if you take to them. I would do this. The last likely cause beyond a gas issue (since it welds fine on DC) is an internal machine issue with the AC mode. Everlast is great at handling those, but I'd rule out the gas first for certainty.

The last time I experienced welds like this on HFAC aluminum was with a water-cooled torch, and I discovered the company the machines were rented from used (hard Pennsylvania) tap water and cheap automotive antifreeze for coolant. The HF would conduct through this mess, and I don't understand the damage, but it would start welding like yours, so I suspect a machine issue.

Steve
Hey Steve...I'm with you on machine problems...if it was gas he would have soot around the welds...he is getting cleaning action but it's very erratic so it might just be a balance problem or a very long arc.
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cj737
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And for clarity sake, what exactly is the spec on the aluminum? Some ally is non-weldable-
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All aluminum alloys will weld. The ones considered "unweldable" can and probably will crack.
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exnailpounder wrote:
Otto Nobedder wrote:Your gas supplier should analyze your bottle for free, if you take to them. I would do this. The last likely cause beyond a gas issue (since it welds fine on DC) is an internal machine issue with the AC mode. Everlast is great at handling those, but I'd rule out the gas first for certainty.

The last time I experienced welds like this on HFAC aluminum was with a water-cooled torch, and I discovered the company the machines were rented from used (hard Pennsylvania) tap water and cheap automotive antifreeze for coolant. The HF would conduct through this mess, and I don't understand the damage, but it would start welding like yours, so I suspect a machine issue.

Steve
Hey Steve...I'm with you on machine problems...if it was gas he would have soot around the welds...he is getting cleaning action but it's very erratic so it might just be a balance problem or a very long arc.
If it's not the material then I think it is a ac problem with the machine. I tried the ac balance from 20-50 and still had the problems.

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It's almost assuredly not a material problem if it's good, clean AL. By the way..how thick is your material?
I'm pretty sure your manufacturer will suggest ideal settings for balance. If your balance is way off, you will have nothing but problems. It's pretty common for new AL welders to show up here with exactly the same problems you're having and it is almost never a machine defect. Your balance should remain around the ideal setting except when you encounter really dirty material. It looks to me like you are way into the cleaning side of balance so that's why I keep hinting at finding the correct setting.
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Farmwelding wrote:What kind of filler metal are you using?
4043Image

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exnailpounder wrote:It's almost assuredly not a material problem if it's good, clean AL. By the way..how thick is your material?
I'm pretty sure your manufacturer will suggest ideal settings for balance. If your balance is way off, you will have nothing but problems. It's pretty common for new AL welders to show up here with exactly the same problems you're having and it is almost never a machine defect. Your balance should remain around the ideal setting except when you encounter really dirty material. It looks to me like you are way into the cleaning side of balance so that's why I keep hinting at finding the correct setting.
35% is the recommended setting on balance. I started there then also tried going down a bit trying over and again until I went down to 20. Then going little by little until I reached 50.

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http://www.everlastgenerators.com/blog/ ... 842c06.jpg[/img]

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If your metal is clean then leave the machine at 35%. Is your arc wandering all over when you light up? Is your tungsten balling up ok? You never did say what thickness your metal was. Sorry if this sounds like a stupid question but are you waiting for a puddle to form before you advance? What type of tungsten are you using?
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exnailpounder wrote:If your metal is clean then leave the machine at 35%. Is your arc wandering all over when you light up? Is your tungsten balling up ok? You never did say what thickness your metal was. Sorry if this sounds like a stupid question but are you waiting for a puddle to form before you advance? What type of tungsten are you using?
Arc does wander. Tungsten does not ball up. 1/8" material.

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I'm waiting for the material to mirror finish before advancing.

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Using blue tungsten

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Ok. I have suggested that you are too far into the cleaning side of balance. I run my machine a little bit into the penetration side, that keeps the arc focused and keeps the ball small. Go a few numbers into the penetration side( i don't know your machine so bear with me) not much, just a couple percent. See if your arc still wanders and if your tungsten balls a little bit. Don't use any filler , just try to get a puddle and when and if you do, try to advance forward and see if you can duplicate the puddle again. Don't move your balance knob in huge leaps...a little goes a long way with balance settings and keep your arc length short as too long of an arc length will cause it to wander badly.
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Mattwho777 wrote:Using blue tungsten

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Is there any chance you have some anodized aluminum?

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exnailpounder wrote:Ok. I have suggested that you are too far into the cleaning side of balance. I run my machine a little bit into the penetration side, that keeps the arc focused and keeps the ball small. Go a few numbers into the penetration side( i don't know your machine so bear with me) not much, just a couple percent. See if your arc still wanders and if your tungsten balls a little bit. Don't use any filler , just try to get a puddle and when and if you do, try to advance forward and see if you can duplicate the puddle again. Don't move your balance knob in huge leaps...a little goes a long way with balance settings and keep your arc length short as too long of an arc length will cause it to wander badly.
Alright I'll give it a try and see how it goes.

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Warrenh wrote:
Mattwho777 wrote:Using blue tungsten

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Is there any chance you have some anodized aluminum?

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Thats a good question. There are so many variables with tig welding that it takes awhile to come up with the answer to a problem. Most of the time it's the "torch nut" :lol:
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exnailpounder wrote:
Warrenh wrote:
Mattwho777 wrote:Using blue tungsten

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Is there any chance you have some anodized aluminum?

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Thats a good question. There are so many variables with tig welding that it takes awhile to come up with the answer to a problem. Most of the time it's the "torch nut" :lol:
Hey, ive had a loose nut on my torch, too. Small world. Lol

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I took out the cheap gas lens I purchased. Put in the standard collet that came with the machine. Keep the same settings 35% balance and frequency @120. Laid down good. I think an 3/32 or 1/8 filler rod would work a little better. I guess I'll have to save up and get a good gas lens and find a good place to get some aluminum to practice on.

Thanks everyone for the help & advice.Image

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Last edited by Mattwho777 on Tue May 09, 2017 5:29 pm, edited 1 time in total.
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Glad you figured it out! Much better! Now you can appreciate how much is going on while tig welding. Once you get everything dialed in, you should only have to tweak your settings once in awhile or use some of your bells and whistles. Another tiggerator joins the ranks! Ps...even good gas lenses are cheap. I think I paid $5 for a Miller brand lens last time I was at the LWS. Good luck!
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Mattwho777 wrote:I took out the cheap gas lens I purchased. Put in the one that came with the machine.
I learned a lot from this thread, there's a few things I'd like to make sure I've got right:
Did the machine come with a gas lens or a standard collet body?
During the original diagnosis, it seemed like you were able to weld steel OK with the cheap gas lens, is that true? If so I'm not sure why the results on aluminum were so bad. I would have thought the cheap gas lens would have done rather poorly on steel as well.
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