| Re: DRB no.72 I don't want to hijack this thread, but just a quick comment on the chrome wheel finish. As I recall from our engineering metallurgy lecturer many years ago, components that are subject to stress should not be chrome plated. Chrome is a very hard, brittle, inflexible material, hence it provides a great surface protection. But this hardness also means any stressing and slight flexing causes minute surface cracks to occur, which initiate extended cracking and stress failures. Additionally, the chrome plating process itself leads to hydrogen embrittlement (in steel, not sure about alloys) which adds to this process. So it was a rule of thumb that any stressed structures (wheels, golf clubs, etc.) should not have a surface coating of chrome.
You can protect alloy wheels with an anodised finish, which avoids this problem, but is a more subdued, satin finish.
Anyway, a great build and keep the photos coming, thanks.
Dalton |