At 03:31 AM 9/26/06 -0700, Jay Sexton wrote:
>In my (welding) world, fusion welding is melting metal together with NO
ADDED FILLER.
>Is this your definition Norris? I would never put a bicycle on the road
and trust it
>would stay together using fusion welding.
Any of you UK folks remember the Dayton Roadmaster from the 1950s? Frame tubing was A&P Kromo and I believe it was joined using resistance welding. The "fillets" were narrow ridges. These were by no means high quality bikes, but lightweights for club riders of limited means.
As for fusion welding. I've seen sheet metal craftsmen join thin gauge steel at right angles this way, but I would think making mitre joints with tubing without using filler would not be possible without undercutting ald losing a lot of strength.
John Betmanis
Woodstock, Ontario
Canada