TIG Dimples
TIG Dimples
(OP)
I do a great deal of TIG welding with mild steel (1018). While I have mastered the beginning and main part of the bead, my termination points have either dimples or craters. How does one terminate the TIG bead with a smooth finish? I have tried lowering the amperage, yanking the torch away quickly, making smaller and smaller circles, etc.
How do you masters do it?
Thanks
John G.
How do you masters do it?
Thanks
John G.





RE: TIG Dimples
It's been a while since I've done any amount of tig work, but I used to break the arc, wait a second or so to allow the puddle to cool, reestablish the arc for a time long enought to fill the crater and lower the amperage as I broke the arc.
One thing to remember, do not move the torch away from the molten puddle or you'll have a burnt crater, and watch your post flow gas times. High frequency on start was a great help too, saved a lot of sharpening....Mike
RE: TIG Dimples
RE: TIG Dimples
I weld for UA United Association for Plumbers and Pipefitters. I would have to agree with welder123, with his technique. We call it "Walking the Cup"...by rolling your torch side to side in a tighter weave pattern in a forward motion, filing away the point of termination. I use this technique for most of all SS Steels and especially for Manual SS Tube Fusion welding.
RE: TIG Dimples