Where does it state in the standard ASME Y14.5 that the tolerance in the feature control frame is that total tolerance and not ± tolerance? I have a drawing that calls for cylindricity at 0.0005" but I over heard the engineers talk and mention that its ±0.0005" with a total of 0.001".
The number is the difference of radius between two perfect cylinders in which all the measured hits must be placed, without any idea of the diameter (form only !).
I would just ask to the management how they construct a negative difference ...
The number is the difference of radius between two perfect cylinders in which all the measured hits must be placed, without any idea of the diameter (form only !).
I would just ask to the management how they construct a negative difference ...