I'm learning a bit of stick welding since I keep needing it for certain projects. Total beginner.
The material is 2mm thick 40x40mm square tubing - don't know the exact metal type, should be "regular" steel that was a bit corroded from staying in the steel yard.
I tried using 2mm and 1.6mm rutile electrodes.
I tried the 1.6mm at 55~ Amps AC and the 2mm at 60-65 Amps AC. With higher or lower Amps, my electrodes started sticking.
- The angle I'm holding the electrode at is similar to this one: https://i.ytimg.com/vi/qTaQf0iPH-g/maxresdefault.jpg
What is happening that on straight flat sections I can spark and keep a straight line and don't burn a hole in metal. The weld is strong and consistent.
When trying to weld the two pieces together, on the outside and inside angles (see red circle) I keep burning through and bigger and bigger gaps keep opening because of this.
On the inner corners I have not had this issue and I have successfully welded thicker metals with 2mm and 2.5mm electrodes without issues.
EDIT: Edited for clarity that I'm not actually welding without melting metal :)