Second day with tig welding. I'm learning strictly on browsing various welding forums and practicing. I'd like to get more experience before I start welding more complicated things like piping. I've tried welding two pieces of pipe but stopped every 1/4 of the pipe.

Below is a pic of my weld on two pieces of 1/8" walled stainless square tubing with with beveled edges and about a 3/32 gap. Gas is pure argon set at 15cfh, tungsten is red 1/16", filler is 3/32 308l, using a #6 welding tip. Any constructive criticism will help.

I started understanding and watching my HAZ. The HAZ in the pic is about 1" wide welding at low amps so I can work on torch control so penetration isnt great.

 

Looks pretty good. Any more pics? Any of the inside?

Just curious...but what welder, and how many amps?

 

Is it me or does it look like you could use a bit more fillter to help correct the undercut?

 

When doing a butt weld, keep the tungsten dead center on the joint. Do not move, and add your filler rod on the front leading edge of the puddle. It looks like you have very good mechanics, and a great starting point. Practice on the consistancy of the width of your puddle by using the pedal. Crank your amps up, and practice on thin stuff to learn how to manipulate the pedal.

 

im no welder, that looks pretty damn good to me i guess if the welds were straight (direction of the pattern)

 

Looks great! As stated, it actually seems like you have too much heat, or are just not adding enough filler, because from the pic, it looks to have a little bit of undercut. Other than that, it looks great!
Again, what welder?
Got a great start, consistency just comes with experience, keep at it and youll pick it up.
Kyle

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">Here is what I got off a miller board from a reputable welder.

He commented on getting the stack of dimes look

Strike your arc using the HF amptrol and circle the torch counterclockwise just above the begininning point until your base metal puddles good. Add a dab of filler rod, be careful not to hit your tungsten with the filler, then advance your torch forward and continue this CCW motion until the filler puddles good and the weld toes are washed in good, add filler and advance the torch again. Continue this action to form your weld bead. I try to keep the torch moving and continually add filler as needed. You can also back the torch up, add filler, bring the torch forward again, and repeat. This works well, but the bead is not as pretty.

This procedure is for right handed welding from right to left. For left hand welding travel from left to right circle clockwise and advance as described above. Do not run you torch in a straight line without circling. This only causes lack of fusion due to lack of heat input over the weld area.</TD></TR></TABLE>

Oh wow. Thanks for that info! The 2 books that I have read on tig welding havn't mentioned that circling of the torch. That makes total sense though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bryson &raquo;</TD></TR><TR><TD CLASS="quote">

Oh wow. Thanks for that info! The 2 books that I have read on tig welding havn't mentioned that circling of the torch. That makes total sense though. </TD></TR></TABLE>

I talked to the guy that I posted that from, he told me thats only to form a puddle, so I will be deleating that.

 

practice makes perfect!!!!

 

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very nice weld for a starter

 

your weld is so undercut because you have a huge gap between the two peices. But them completely together and repeat.