4 ms·

There's a whitepaper available here http://prod.sandia.gov/techlib/access-control.cgi/2010/100258.pdf http://prod.sandia.gov/techlib/access-control.cgi/2010/100

There's a whitepaper available here http://prod.sandia.gov/techlib/access-control.cgi/2010/100258.pdf http://prod.sandia.gov/techlib/access-control.cgi/2010/10025... Their data suggests that the air gap provides minimal resistance to the flow of heat. As for the clearance, they've stated that unusually high-precision manufacturing is not required for the two surfaces.

nialo 14y ago
Re: clearance, while .001" clearance isn't something I'd want in a design particularly, modern machine tools are good enough that you get flatness and surface finish good enough to not have problems at .001" clearance basically free on any machined surface.