Devils Eye

admin

So I was just wondering how reliable is the devils eye in letting you know penetration is. occuring in the open pipe root with tig
Reply:I found this article on millers site a few weeks ago:http://www.millerwelds.com/resources...-pipe-welding/This is the authors point of view on the devils eye:The best way to ensure the highest probability of success on the root pass (Fig. 3) is to look for what has been termed the "devil's eye." The "devil's eye" is a fluid dot in the center of the weld puddle that is formed by foreign (but not worrisome) elements, such as silicon on a mild steel application, which continuously dances around in the weld puddle. If an operator sees the "devil's eye," it is insurance that the torch angle, travel speed, root opening and filler metal are properly positioned and that he has adjusted the amperage setting correctly. If the operator does not see the "devil's eye," it is a sign that one of the physical variables is not correct and should be adjusted accordingly.I was doing a lot of pipe welding practice a few weeks ago, and when I got the devils eye, I could see inside that I had full penetration. I personally would say it is a good gauge. It worked for me.kidtigger24  They think I’m crazy, but I know better. It is not I who am crazy. It is I who am MAD!
Reply:Yeah. The way i weld pipe involves 3/32 gap with 1/8 filler and I can usually see it push in, a guy at work was sayin somethin about it and I tried it. Everything was the same I just never really noticed it before haha. Anything that takes the guess work out of the money pass is well.... worth some money haha
Reply:interesting....learn something everyday.(but I usually forget something, too)