aluminium chassi

[Moparigno]

Hi,
I'm evaluating to build a front subframe using rectangular aluminium extrusions. I'm wondering if anybody did a similar work and have some suggestions/feedback to share.

I'm concerned about the suspension mounts. I would use stainless steel brackets to avoid corrosion, but I need to bolt them. My idea is to weld a small piece of aliminium tube through the rectangular extrusion and use it as a guide to pass the bolt through.

Any reccomendation ?

here is something similar on Audi R8 rear suspensions:

http://stadium.weblogsinc.com/autoblog/hirezpics/W8_cutaway_large02.JPG

 

[thruthefence]

These guys also build an aluminum chassis.

http://www.lotuscars.com/engineering/en/index

 

[GregLocock]

You may still get galvanic corrosion between stainless and aluminium and the bolt.

Is this just for a one off?

The big issue is softening of the HAZ .

Cheers

Greg Locock


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