Cutting and Etching is a destructive test so can not be used on live parts but it provides valuable information on your mig welding technique and settings.
Cut with a zip disc, bandsaw, portaband, or whatever and then just smooth with a flap disc and some scotch brite pads.
I used a passivation solution designed for stainless steel heat tint removal but 5% nital etch and even Naval jelly loctite rust remover works ok...it just takes longer.
I like to keep different grinding wheels on each one and that way I hardly every have to change wheels.
Super quick project but very useful is this slide hammer tool that uses a chisel and slide hammer for removing weld spatter
A very good TIG welding technique for pipe and a few other round shapes is walking the cup.
But its good to be also be able to freehand.
Sometimes there are obstacles that prevent walking the cup. For those occasions being able to prop with a tig finger can help.
Other times, a part has smooth m...