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Old January 2nd 08, 09:58 PM posted to rec.aviation.homebuilt
clare at snyder.on.ca
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Posts: 121
Default 4130 can't be OA welded?

On Wed, 02 Jan 2008 13:22:24 GMT, "Blueskies"
wrote:


"Richard Riley" wrote in message ...
On Fri, 28 Dec 2007 19:46:57 -0800 (PST), "
wrote:

On Dec 28, 2:57 pm, wright1902glider wrote:
the author
seems to think that 4130 cro-mo steel can't be welded with an oxy-
acetylene torch.
--------------------------------------------------------------------------------

Pure bull****. Indeed, for the stresses encountered in bicycles
(which is what he's talking about) there are any number of BRAZING
compounds that yield joints stronger than than normalized 4130.

O/A does just fine airframes... and for bike frames.


If brazing gives stronger joints that normalized 4130, why aren't we
brazing airframes?

(I'm not saying it's an incorrect statement - I know better than to
disagree with VD on something like this. I just figure there must be
a reason, like the brazing compounds are more expensive.)



Won't withstand high temperatures?

Will withstand temperatures higher than anything attatched to the
airframe will ever withstand.

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