Consider the piston ring data shown in Table 6.3. Assume that the specifications on this component are 74.000 0.05 mm.
(a) Set up x and R control charts on this process. Is the process in statistical control?
(b) The control limits on the x chart in part (a) are identical to the control limits on the x chart in Example 6.3, where the limits were based on s. Will this always happen?
(c) Estimate process capability for the piston-ring process. Estimate the percentage of piston rings produced that will be outside of the specification.

  • CreatedNovember 06, 2015
  • Files Included
Post your question