43655
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| posted on 24/7/17 at 01:52 PM |
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Chassis Parts in Stainless?
Hi, am about 70% through making my chassis, a mid engine car, not a locost.
Will be putting some bolted chassis joints into the rear section so the gearbox and engine can be removed as a complete assembly, and to generally aid
access.
Work with a lot of marine stuff in work, so naturally thought stainless would be a decent material, just to keep the area rust free, where paint
can't really be added or it would get worn off.
But maybe it would be a good idea for other mounts, the shock mounts, bellcrank mounts. Too late for the wishbone tabs.
These are my proposed tube joints...
it's this X-shaped part I plan to have removable
interestingly stainless' properties don't differ that greatly from regular steel (cromo would be a different story...)
http://www.makeitfrom.com/compare/AISI-316-1.4401-1.4436-S31600-Stainless-Steel/SAE-AISI-1018-G10180-Carbon-Steel
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HowardB
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| posted on 24/7/17 at 02:08 PM |
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my 2p - Galvanized is better, using good quality steel and galvanising will protect the part and the adjacent steel work. Stainless may introduce
galvanic corrosion and is typically of a lower yield strength than mild steel.
hth
Howard
Fisher Fury was 2000 Zetec - now a 1600 (it Lives again  and goes zoom)
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madteg
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| posted on 24/7/17 at 02:14 PM |
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Personally i would use mild steel galvanised bolts to stop them picking up. The last thing you want is a thread picked up/seized.
Could cover everything in copper slip but still no guarantee they will not pick up
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madteg
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| posted on 24/7/17 at 02:18 PM |
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My Stainless steel chassis is now 12 years old and still as good as when i built it, never been repaired and has not a speck of rust on it.
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43655
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| posted on 24/7/17 at 02:32 PM |
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how could one galvanise after welding, anyone with experience of cold galvanising?
Would it wear off if there's slight movement?
Have tweaked the design so it's a mechanical 'hook', the bolt only serves to hold it together as should take no shearing load
Yes stainless on stainless fixings are often not pleasant.
Galvanic corrosion I don't think it an issue, they'd be welded together and the mild steel painted anyway
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jacko
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| posted on 24/7/17 at 06:18 PM |
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That looks a lot better when i was looking at the first photo i was thinking it should have a hook fixing
Jacko
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43655
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| posted on 25/7/17 at 10:01 AM |
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Thanks yeah definitely the right way to do it I think!
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