Hi all, I've had problems with welding different hardness materials and would like a bit advice.
I made a robot sculpture and the arm joints were ball bearings with rebar arms, needless to say they snapped away from the ball bearings when put under force, the rebar arms and welds were still intact but there was a void where they were welded to the bearings.
I've had issues with springs as well as engine cogs used in sculptures and I'd like to see if there's something I can do to remedy the situation?
I've recently bought an oxy-propane setup and I'm going to give preheating a go as well as using brazing rods for dissimilar metals. I've read this should work and should give a good visual result.
Any advice before I get set up would be greatly appreciated and the easiest option is always welcome. It'd be great to just use mig for ease and quickness but I'm open to suggestions.
Thanks in advice.
I made a robot sculpture and the arm joints were ball bearings with rebar arms, needless to say they snapped away from the ball bearings when put under force, the rebar arms and welds were still intact but there was a void where they were welded to the bearings.
I've had issues with springs as well as engine cogs used in sculptures and I'd like to see if there's something I can do to remedy the situation?
I've recently bought an oxy-propane setup and I'm going to give preheating a go as well as using brazing rods for dissimilar metals. I've read this should work and should give a good visual result.
Any advice before I get set up would be greatly appreciated and the easiest option is always welcome. It'd be great to just use mig for ease and quickness but I'm open to suggestions.
Thanks in advice.