Anyone have an idea how to calculate the resistance between two chunks of metal clamped together?
Here's what I'm doing. I have to connect a power supply that will deliver
12V at 600A to a system. I plan to clamp two pairs of bus bars together as the "connectors" between the power supply assembly and the backplane bus bars.So, I'd like to be able to estimate the dcr of the two mated surfaces. Obviously the resistance will be a function of materials used, surface flatness, area of contact, and (I would assume) force applied to keep the two surfaces together.
The plan is to have each bus bar be 1" wide by 1/2" thick. There will be 1" of contact area to a similar bus bar along the 1" dimension. The bars will be tin plated copper.
The big question is - how to estimate the dcr of such a system?
Any help would be greatly appreciated.
Bob