I really enjoyed showing the lack of penetration between vertically up and vertically down welding on a T Fillet when we did a macro etch this week but, in my own view, I don’t explain WHY this happens sufficiently well other than down hand being affected by gravity so less opportunity for the weld to penetrate whereas up is effectively layered on top of each other so the heat input is greater.
Anyone care to do a better job of this than me?
Anyone care to do a better job of this than me?