Originally Posted by
Columbo
I tried my new PA200 today for the first time. I've had it for about a month now but had to wait until I got a 220v line hooked up. I ran the line from the electrical panel to a weather proof plug that I installed on the outside of the house. I bought two 25ft welding extension cables to use from the wall mount.
Having zero experience in stick welding I thought I would try welding two pieces of angle iron together. I cleaned up the angle iron and beveled the edges that I intended to weld. For the first bead I used a E6011 1/8" rod at 100 amps. My first bead was not great but the PA200 worked great.
I think part of the problem with the bead, aside from inexperience, was that I was using an auto-darkening helmet and I think I had the setting to high and I could not see the puddle. The helmet had been set at 13 so I cranked it down to about 10 and I was then able to see the puddle better. I then tried another couple of pieces of angle iron using a E7018 rod at 65 amps and the bead was much better although far from perfect.
One of my biggest problems is trying to get used to the idea that, as the rod burns off and gets shorter, I have to move the rod forward to maintain the arc gap. I kept losing the arc and had to stike it again to restart, but I hope with a lot more practice I'll get the hang of it.
One thing that I noticed in the various videos that I have watched was that when the welder finished his bead he took his hammer and tapped the weld and a fairly large piece of slag fell off revealing the bead underneath. On my welds, they looked black but the slag was extremely thin and when tapping with the hammer very little slag came off. The black almost looked like it was spray painted on. Is this due to something that I am doing wrong when I'm trying to weld? The weld look solid and the penetration looked ok.
You didn't mention how thick the angle iron was, that will determine the best rod size, and factor into the best amp setting.
Long arc, short arc, heliarc and in-the-dark!