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Optimum Mean Location in a Poor-Capability Process

Summary: [This abstract is based on the authors' abstract.]Many processes may be stable but not capable of meeting the specification limits, resulting in a higher number of nonconforming products that increase costs. While the reduction of process variability offers a solution, it may not be economically feasible or is too time consuming. A procedure is proposed that minimizes losses by adjusting the process mean. An optimum mean value for a two-sided specified normal process is determined using a quadratic cost function. In order to simplify the process, a program is provided that allows the user to easily determine the optimum mean value.

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  • Topics: Process Capability
  • Keywords: Analysis Of Means (ANOM),Process capability (Cp),Optimization,Cost management
  • Author: Ho, Linda Lee; Quinino, Roberto C.
  • Journal: Quality Engineering