I didn't get the jest of what you were trying to do, that's what happens when you don't read the post well. The silicon- bronze wire sounds great. I have seen it used in Tig welding, the mig wire is new to me also.
Thanks
I think you are right on that idea. Once you get your blank drilled and mounted on the HB and trued up, you will have to probably make a stub with the 1-1/2" thread so you can get that to run concentric on the Atlas lathe. I assume you have a chuck for the Atlas that you can use to fit the stub...