Fusion Welding!! This Is So Cool!

I remember probably back in the late 60's early 70's running across an article in Popular Science, back when you could learn something from it, where a guy welded an extension on a twist drill. IIRC, he spun the drill shank end out from the chuck and used a steady rest very close to support the extension he was welding on. With the tailstock, he applied pressure, and just held it with pliers until he thought it was hot enough, then let go with the pliers, allowing the extension to spin along with the drill.

It seems like it would work, but I would make a cup and point or something between the extension and the drill to help keep things centered. I may have a go at that, just to see if it works as I remember reading.
 
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