If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.
I just wondering about any other techniques I could use to get the bead taller on inside of pipe to say 1/8 opposed to the 1/16 I'm stuck with right now, the reason I'm conceded is because I'm doing a test soon where 4 coupons are cut out and bent 180 deg. Root face 2 of each. Sometimes I'm getting slight undercut on my root bends, thus the question about taller wider beads
You are referring to the root rein on the inside of pipe?
well then if you have undercut I suggest that you should hold a little longer on the corners, there fore the slower speed along with just a whisker of a drag might help. Are there not any limitations on the root rein? Sometimes to much is unexeptable
3/32 land and root opening is way too big for a 3/32 electrode. Try using a 1/8" and or closing the root opening up a little. Then it comes down to electrode manipulation ie angle, pressure on rod etc, good luck
I'm in school I have all position CWB working on 6g tig open root with stainless, I agree with the bit about 1/8 electrode, I'm not 100% sure but I'm thinkin test calls for 3 .3 .3 rule .. 3/32 gap land and electrode, it's welded fixed 6g position vert. Up, I can pass the test I'm just runnin the ragged edge of it tho, what aprox. amp would u suggest for sked 80 2" pipe with the 1/8 rod?? 70-5amps? I also found that I have to let the pipe cool before doing the second half of root, that or drop amps by 10, also does anyone know where I could find info as to guide lines for the TSSA pipe tests, their web site is bull**** and wants you to order their books for a small fortune, PDF files are also a waist of time,
Any help would be much appreciated!!!!!