Here are some additional facts to help clear the issue, or fuel the fire, as the case may be.
The coating is Zirconium Nitride being applied to a implantable dental device via PVD. The coating serves a functional service (prevents galling of threads and a press fit mating service)and also aids...
Kenat,
FYI - I did check their terms before posting and there is no reference to any standard. The issue has been resolved and the customer is happy to accept the parts at 4.2 microns. After discussions with the customer, they actually want >2 microns not to exceed 5 microns. The "2 to 4...
Thanks for the reply.
My logic would actually allow for a thickness range of 1.50 to 4.4 on a specification of 2 to 4. 1.5 would be rounded to 2 and 4.4 would be rounded down to 4.
What I am trying to understand is whether there is a difference as far as rounding and significant digits goes...
thread301-176582
I dug out the above referenced thread and hope to get the groups opinion on this real world example:
I have a customer that has requested a coating thickness of 2 to 4 microns. Their drawing doesn't reference any dimension or tolerancing standard.
Actual thickness of the...