I want to make some small diameter rod racks for spices. I think I'll use1/4" or less square and round bar. I'm going to twist the round, and square, making spirals, geometric designs, freehand stuff, then bend it to form the rack. Mainly kitchen spice racks, knife holders, holders for containers, etc.
I have a Lincoln 175 SP+, and can do some HOT spot welds. I don't want to do very much weld metal deposit to keep from warping.
I have been interested in what it takes to put two pieces of bar together, and zap them and melt them like the shopping carts are made. They come up so beautifully fused and even.
Is there a resistance welding device made, or can I do it with just a welding machine with a momentary blast of current? As with CadWelding studs, is there any type of powder available that I can put in the joint that would melt when it arcs?
Or just keep it simple and tack it hot?