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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