engleski

Role of gage r&r in estimation of process capability

Capable process is a process that is able to produce items within the specification limits. The ability of a process to meet specifications can be expressed by using process capability indices. In order to have an accurate estimation of process capability quality management system is required. Gage repeatability and reproducibility analysis (gage R&R) addresses the issue of measurement system precision. If measurement system is not repeatable or reproducible relatively to the variability between items, then that measurement system is not sufficiently precise to be used in product capability analyses. In the ideal case, all variability’s in measurements are results of item variation, and only a negligible proportion of the variability’s will be due to gage R&R. In this paper an analysis of the influence of quality measurement system on process capability has been carried out.

process capability; process capability indices; gage R&R

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