Eutectic makes good braze welding rods-- flux coated and bare. I've used
those and also some made by All- State. So many of those suppliers have
changed names that I have a hard time keeping track of who's who these days.
The thin- flowing rods are great fot the tie- rod application but a bead-
forming alloy is OK if you fish- mouth or diagonal- cut the tubing and also
make a rosette weld in the tubing.
Regards, Neil Tucson, AZ
-----Original Message-----
From: Want1937hd@aol.com [mailto:Want1937hd@aol.com]
Sent: Friday, December 07, 2001 6:31 PM
To: Albaugh, Neil; ardunbill@webtv.net; land-speed@autox.team.net
Subject: Re: lakester frame
Years ago when I worked at a restoration shop we used a coated brazing
rod made by Eutectic (sp) it was great stiff. We would sweat Bugatti tie rod
ends onto new tubes and there would be little clean up work, then off to the
plating shop. Bob in connecticut
Just a few rules will get you a nice, strong braze- welded joint:
1. Don't overheat the weld-- this creates intermetallics and a weak joint.
2. Have close- fitting joints. Don't fill big gaps!!
3. Both pieces must be really clean!
4. Use flux on both pieces.
One nice thing is that there is far less distortion in the braze- welded
structure than there is in a fusion- welded one.
Most welding books cover conventional brazing a little but braze welding not
at all. You're right-- motorcycles, bicycles, and (British) race car chassis
were using this technique years ago.
Regards, Neil
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