Quote:
Originally Posted by aerohead
I'm pretty certain that the dimpling is part of the manufacturing process.As a form of "corrugation" it may add strength to a thinner section,adding strength while cutting weight.
With respect to the "high-end" luxury cars,it's also a way to alter the resonant-frequency of the floor,so it doesn't "boom",enhancing the " noise,vibration and harshness" criteria.
Since the pattern on diamond plate is only cosmetic,I don't think it has any advantages.If you can buy it dirt cheap go ahead and score some,but consider using "upside-down."
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It's not only cosmetic though. The "diamonds" are raised so they add rigidity