Opinions on some welds please!

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twinturboz161
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Opinions on some welds please!

Post by twinturboz161 »

I got my tig about 2 weeks ago and that's all the experience I have so far, but i'm curious to see what I need to be working on.
16g mild pipe
Image

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The one thing I know i need to do is when i start/stop overlap my welds better so i don't have those gaps, but any and all criticism is welcome!

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TanManS14
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Post by TanManS14 »

Oh beh, sh*ts lookin good for how long you been at it, Ima have to get me one.
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Post by AK-Z »

Think its ok since its not a a stress loaded piece. I think you are running out of gas though, from the carbon deposit on the beads. Just need a steadier pace.
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Post by joe62890 »

I think it looks pretty good man. What kind of tig did you get?
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Post by frankist »

looks good, whats its look like inside?
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twinturboz161
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Post by twinturboz161 »

The welder is a thermal arc 185, and so far i like it alot, not that i have anything to compare it too lol.

I know i'm not running out of gas but what else could cause that? I think the tungston might have been a lil contaminated :roll: so i'm thinking that's the reason. And ya it's just a practice piece nothing of any significance lol.

i don't have a pic of the inside but it penetrated all the way around
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Post by AK-Z »

twinturboz161 wrote:The welder is a thermal arc 185, and so far i like it alot, not that i have anything to compare it too lol.

I know i'm not running out of gas but what else could cause that? I think the tungston might have been a lil contaminated :roll: so i'm thinking that's the reason. And ya it's just a practice piece nothing of any significance lol.

i don't have a pic of the inside but it penetrated all the way around
Maybe the tungston being a little to far? But I doubt that. Maybe need a new torch?
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Post by myowncasualty »

others will know better than me, but it looks slightly to hot or your moving to slow possibly....

what size filler and electrode are you using?
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twinturboz161
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Post by twinturboz161 »

tungston is 1/16 cerated and the filler is 1/16 ER70S2

Thanks for the input
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Post by Oleh »

^ weld looks alright. use a 3/32 2% thoriated tungsten and work on your pace/consistency.
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Post by nelson240sx »

twinturboz161 wrote:tungston is 1/16 cerated and the filler is 1/16 ER70S2

Thanks for the input
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Post by TanManS14 »

He fixxed the problem with the color, he got a gas lens and it made all the difference. As for what filler he was using idk.
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Post by webphut »

yes, looks little on slow/hot side. adjust your gas to where it just flow slowly out but not too slow...you can feel it about 1-1/2 inch away from hand. use same filler rod as mtrl being welded and also turn heat down to around 65 - 70 from the looks of the weld, u weld on slow side, no biggy just turn heat down and pacde your self to some ac/dc or def lepord....the rythm of rock music is a good dab rate.
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Post by luckygerman »

Hello Here, Pipe Welder 5 years.

First, that looks pretty god for a two week welder.

Second. to achieve better welds some steps you can do. Polish your weld-zone with a Flapping Wheel until mirror finish. You can also clean with some Pure Acetone, thats if your ANAL. The Best Welders are.

third, on stainless you need to cap of your pipe with some cardboard and duct tape and feed a second line with pure argon. This will prevent "Sugaring" Ugly root.

I would recommend to learn how to Walk the Cup.

One of the most important steps, always brace yourself off. pretend that your a Sniper and you need to take the best Shot. If you get to a point in your welding that you all the sutton become uncomfortably, STOP. Re-arrange your self, make your self comfortably and continue, always STOP before you potentially mess up your welds.

Always with Pipe, tack weld four quarters and weld one quarter at the time and always opposite from each other. example...12 o'clock, 6 o'clock, 9 o'clock, 3 o'clock
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Post by luckygerman »

Oh, one more thing, Keep that Tungsten Sharp, Alot of people weld with the rooster tail, i dont it is always in the way, just get your self a nob instead of the tail. Now you can cut your tungsten in half and sharpen both ends, make yourself a little tungsten holder. It saves time from constant sharpening especially when your just starting out. I use a bench grinder to sharpen.

Just slow things down with a little less heat until you perfect your consistency. and don't dip your tungsten and if you do and you tip is burned, don't continue to weld, re sharp the tip.
Once you become more consistent you can increase your heat and speed.
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Post by mello88 »

^ some very good advice!

Remember if you chop your tungstens in half you won't know which color they are/were and they can get mixed up. I use the same rare-earth tungsten (arc-time from link below) on everything but some people like to use different blends on different materials. Tungsten selection and prep is in itself a whole discussion and everyone has their own preferences....

Regarding sharpening the tungstens, many people suggest you use a dedicated grinding wheel. The idea is that you don't contaminate the tungsten with other metals you've ground. I personally avoid the whole issue by using a dedicated "Sharpie" tungsten grinder from Arc-zone.com:

Image
http://www.arc-zone.com/index.php?main_page=index&cPath=15_165


Your welds look pretty good for someone just starting out! Keep it up!
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