Quote Originally Posted by Eventorizon View Post
Doesn't that kind of defeat the point? If you have to make it thinner to bend it then the corner is only as strong as the thin section so you may as well be using thinner material anyway, and if you stick a weld on the inside you end up ruining its properties. I'm not saying don't do it, but there may be/probably are better alternatives.
Yeah this was my thinking, I'd heard that welding ruins its properties which I why I wanted to bend it in the first place rather than just weld two sheets together but it would make bending easier.
It is probably worth going along with the grinder to make a small indent to ensure it bends on the line. I'll have a word with the metal workers to see if they think they can bend it as they've got a hydraulic line bender but not sure if it can deal with this sort of thickness or this hardness of material.