Ed;
There is no need to be frightened of chrome moly tubing, you only need to be
careful. The common grade to use is 4130N; "N" means "normalized" and this
grade has an ability to be welded. TIG is best but lots of airplanes were
built using gas welded 4130N. "Fillet brazing" is another good technique
that was discussed on this list in the past. A good book is "How to Weld
Danmed Near Anything".
Regards, Neil Tucson, AZ
-----Original Message-----
From: land-speed-bounces+neil=dbelltech.com@autox.team.net
[mailto:land-speed-bounces+neil=dbelltech.com@autox.team.net] On Behalf Of
Ed Weldon
Sent: Friday, October 05, 2007 5:38 PM
To: DougOdom; Bill Bennett
Cc: Landspeed List
Subject: [Land-speed] Another chrome-moly rant??
Chrome-moly for chassis construction scares the BG's out of me. Way too
many variables for any kind of cutting edge racing application unless you've
got some pretty experienced engineering heads watching over both the
design/build as well as the operation/maintenance.
IMHO worse than worthless for LSR or any kind of amateur racing for that
matter.
Well, maybe I'd make an exception for little British sports cars like Lotus
7's with their silver soldered "birdcage" frames.... as long as they're
powered with "little British" engines.
Ed Weldon
> > ----- Original Message ----- From: "DougOdom" <dlodom@charter.net>
> > To: "Landspeed List" <land-speed@autox.team.net>
> > Sent: Thursday, October 04, 2007 5:54 PM
> > Subject: [Land-speed] John Force car
> Bill, I started this thread for the people that are building a car out
> of chrome moly tubing. In all the race cars I have built ( over 20 ) I
> have never used chrome moly so I know very little about working with it.
> I have a good friend that builds super modifieds. Of course they are
> made with c/m tubing. Another good friend is a crew chief on a funny
> car. From what I understand there has been a real hassle among funny
> car builders about heat treating or normalizing c/m. .... Doug Odom in big
ditch
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