How to calculate the formula of turning teeth on CNC lathe? For example, how to calculate the outer diameter of M40* 1.5? How deep is this car? What about the inner teeth? What is the inner diameter?

How to calculate the formula of turning teeth on CNC lathe? For example, how to calculate the outer diameter of M40* 1.5? How deep is this car? What about the inner teeth? What is the inner diameter? Many cars are deep. ... The formula for calculating the major diameter of external thread is D = basic size -0. 13*P d = basic size-1.08 * p.

The formula for calculating the major diameter of internal thread is d = basic dimension d = basic dimension-1.08 * p.

M40X 1.5 External thread with large diameter 39.805 and small diameter 38.38

M40X 1.5 Internal thread large diameter 40 small diameter 38.38

In actual production, the external thread with low precision requirement can be turned smaller and the internal thread can be turned larger.