Hello all,
I have a question pertaining to the positions of groove weld in tube. According to the AWS D17.1 spec, under Figure 4.4, groove welding in tubes have four positions: 1G, 2G, 5G, and 6G. Only 1G allows rotation of the "pipe" during welding. I, however, deal with tubes less than 1" O.D., not piping on-site where the O.D. and length of pipes are oftentimes, too large to pick up. I perform manual GTAW welds and weld on tubes that are fastened on a fixture. I weld on a horizontal position. The tube remains fixed while welding. However, I take out the partially welded tubes from the fixture so that I can manually rotate them and weld the rest of the tubes. I repeat, I do not rotate the tubes while welding, but I do rotate them once I have to weld the portion facing opposite of me. In short, what is the difference between
"rolled" and
"fixed"? Am I welding in
1G, or
5G?
Thank you in advance!