a real example of a perfect chassis.

[Comadis]

are you interested to see how a chassis should look like?

here we go:

http://www.tvr-forum.de/viewtopic.php?f=7&t=19

Edited by Comadis on Saturday 23 August 14:04

[KANEIT]

Showoff!

[heightswitch]

Comadis said:

are you interested to see how a chassis should look like?

here we go:

http://www.tvr-forum.de/viewtopic.php?f=7&t=19

Edited by Comadis on Saturday 23 August 14:04

Nah.
After galving it should have been t-washed, then etched and then zinc powdered and then colour powder coated. after 2-3 months under the car the chassis will look dark grey and mottled. The shine will only last for a couple of months.

n.

[Seabass]

When I fabricated the chassis for my Seven replica I looked at getting it hot dip galvanised but was advised against it by many because material is removed in the cleaning process and the material is heated considerably which can cause twisting. You can see in the pics where each tube has been drilled to allow gas to escape. I'm aware there is a metal depostion process which can be used to add a galvanised coating.

[heightswitch]

Seabass said:

When I fabricated the chassis for my Seven replica I looked at getting it hot dip galvanised but was advised against it by many because material is removed in the cleaning process and the material is heated considerably which can cause twisting. You can see in the pics where each tube has been drilled to allow gas to escape. I'm aware there is a metal depostion process which can be used to add a galvanised coating.

I agree. Not withstanding the risk of warping the chassis, I once saw a TR6 chassis get galvanised. 2 men lifted it in and 5 had to lift it out again!!
N.

[Comadis]

as you can see, some holes had been profesionally placed and drilled into the chassis for the liquid zinc to drain. also for the gas to escape. the chassis does not bent or deform during the process and will not be much heavier than before....and who cares about the zinc getting grey after a while...


there is a company in uk which does the same for Marcos-Chassis:


http://www.rory.uk.com/Rusty_chassis.htm

[heightswitch]

Comadis said:

as you can see, some holes had been profesionally placed and drilled into the chassis for the liquid zinc to drain. also for the gas to escape. the chassis does not bent or deform during the process and will not be much heavier than before....and who cares about the zinc getting grey after a while...


there is a company in uk which does the same for Marcos-Chassis:


http://www.rory.uk.com/Rusty_chassis.htm

It can be done but has to be done very carefully. a lot of Galvanisers in the UK are only used to throwing pallisade fencing into Molten vats so The risks of warping are very high.

The process often does add weight to the chassis though and welding afterward can be problematic

relax Comadis its only Jealousy

N.

[DavidY]

Neil

does it add more weight than a decent powder coating process?

davidy

[Comadis]

no...if the galvanizing company know their job and you prepare the chassis correctly you do not add much more weight than powder coating..and the advantage is: the internal of the tubes are galvanized too!!