Welding bead on angle iron?
I've been learning oxy-acetylene welding, pretty much on my own (a bit isolated where I live). (Don't be alarmed, I acquired good safety habits from a couple of books and a video.)
Anyhow, I've got a problem with technique in a certain situation. I've been trying to weld two pieces of 1-inch mild-steel angle iron, approximately 1/8"-thick stock. The two lengths are clamped together so that they run side by side and their cross-section hence forms a "T", if you can picture it. I've been tack welding along the top of the "T", every six inches or so, and then attempting a tidy and penetrating seam to join the two adjacent top surfaces together strongly.
Problem seems to be that because the vertical portion of the angle iron is 1" deep below the line I'm trying to weld, it does not puddle along that line like a butt joint with flat 1/8" stock. The vertical metal seems to act as a sort of heat sink, if that makes sense. I can get a puddle, but it tends to spread wide on the top surface of the angle iron. When I finally get it hot enough that the two top surfaces are puddling and the filler rod is flowing in, I get beads that wind up 3/8 or 1/2 inch wide, and not very tidy looking!
It seems like a situation worth pursuing. I'm taking this as a challenge in learning oxy-fuel welding skills. Can you offer any advice? Thanks.