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Re: Pipe thichness!!

To: mini-baja@autox.team.net
Subject: Re: Pipe thichness!!
From: Ian Dixon <minibajasjsu@yahoo.com>
Date: Fri, 19 Mar 2004 23:37:59 -0800 (PST)
I think bending it is the real problem.  Most benders will crinkle the tube at 
.049 wall and
below.

Ian


--- susantoa@pdx.edu wrote:
> .049 isn't very difficult but it's not the easiest stuff.  We had to slow 
>down 
> to about half or 1/3 of the speed we welded even 0.065.  Granted that none of 
> us are expert welders, but even the welding instructor had to slow down when 
> welding the 0.049.  I guess that's all I'm saying with 0.049, if you don't 
>slow 
> down and control the heat it's easy to blow through.
> 
> Let's see, using 0.040" should save you about 17.8% more weight.  Our frame 
> without any mounts on it (tubing only) weighs 48lbs, we would have saved 
> 8.5lbs.  We're just happy to have saved 22.7% using 1.25"x.040" instead of 
> 1"x0.083"
> 
> > Actually, if I recall correctly, the MIN. wall thickness is .040.  However
> > there is no such tubing size..BUT...if you could get a foundry to produce a
> > limited batch, you could save some weight ;-)
> > 
> > .049 isnt very difficult to weld, especially with MIG, as long as there is a
> > tight fit between the components.


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