I'm involved in a project where I need to weld one inch armor plate tabs into a 1x6 inch slot. 1/8th inch bevel around the tab . The object is to make a weld as well as possible to attach the tab and slot without deteriorating the properties of the armor plate. Looks like a 3/8th inch penitration will do the trick. Currently using .35 wire with pulse tig. Almost there but poor repeatability. Anyone ever had this dilema?