M
Folks
I appeal to your collective brainpower.
We are currently completing testing of a new machine, drilling close tolerance holes (+.0015", -.0005") for special fasteners.
I have currently Cpk of 2.5 on entry, & 1.50 on exit in carbon, and even better in al alloy - 3.70 & 2.30.
Given those Cpk figures, how do I calculate sample size?
We wil be drilling lots of about 300 holes per set, and our AQL has got to be as close to 0 as possible
I appeal to your collective brainpower.
We are currently completing testing of a new machine, drilling close tolerance holes (+.0015", -.0005") for special fasteners.
I have currently Cpk of 2.5 on entry, & 1.50 on exit in carbon, and even better in al alloy - 3.70 & 2.30.
Given those Cpk figures, how do I calculate sample size?
We wil be drilling lots of about 300 holes per set, and our AQL has got to be as close to 0 as possible