greenramp previously posted:
"HOWEVER the angle should not change leaning toward the thicker material. This will GREATLY weaken the thinner material and cause the weld to undercut."
If you adjust your heat setting to the thinner material, this would work. What you end up with is a fillet suitable for the thinnest material.
If your equipment and/or process are "too hot" for the thinnest material, using the arc to "punch in" to the heaver material, and draw enough heat to the thinner material, you can obtain similar results. It is a simple idea, just not so easy to execute.