Statistical Tolerance
Statistical Tolerance
(OP)
Hi,
I want to have a good understanding on Statistical tolerances and the sigma consideration. Can any one refer me a good link for a website? Thanks in advance
I want to have a good understanding on Statistical tolerances and the sigma consideration. Can any one refer me a good link for a website? Thanks in advance
Regards,
Amit Paul





RE: Statistical Tolerance
https://www.google.com/search?q=rss+tolerance+stac...
(Oh, and if you find a reasonable approach to applying statistical methods to mating hole patterns with position tolerance I'd be interested.)
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Statistical Tolerance
Thanks for your reply. I am specifically looking for the application of process capability and CPk and based on what are they applied. I understand till RSS but after that I don't understand why they use sigma values i.e rss multiplied by 6sigma/3sigma.
Regards,
Amit Paul
RE: Statistical Tolerance
Until you know how statistics works, you won't understand how to use it for dimensioning and tolerancing.
RE: Statistical Tolerance
What about hole patterns is of interest? If you can describe the problem in geometry and measurement terms then at least you can apply Monte Carlo analysis to approximate the distribution and then use any of a variety of packages to estimate the difference between the ones from the Monte Carlo and any formal distribution to see if one of them is a good approximation.
Or, as my useless Statistics prof suggested in an introductory course, depend on your experience. (Because if I had experience why would I be taking this course?)