So please help the greenhorn HERE out..
I am welding together plasma table cut parts that somebody cut me out of 10 gauge mild steel. The finished project will be in the shape of a cone. I removed the slag or dross from the top and bottom of the cuts that the cutter left. I did not grind the cut itself because well it looked clean and good. The problem I have is I am getting bubbles about every inch or so.I tried grinding,brushing the area to weld on the outside. Also changed tips and tried various gas settings.(co2 mix). I tagged it all together so I can only clean weld on outside and not where the cuts butt together against each other.
Has anybody experienced bubbles with plasma cut parts where the slag has been removed. Should the cut area even though it looks very smooth and clean be also be grinded.