Boyd tooling has an automated drilling machine and the owners want to determine the equipment’s capability for machining a part’s diameter to a specification of 0.350 ± 0.004 inches. after a trial run period, the lathe produced a sample mean of 0.351 inches, with a standard deviation of 0.0009 inch. calculate the cpk for this drilling machine.

a. calculate the cpk for this drilling machine.
b. is this process capable of meeting customer requirements? explain.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.