An Approximate Approach to the Economic Design of <em>x̅</em> Charts By Considering the Cost of Quality

Abstract

The selection of three parameters { }is necessary to design a x control chart. A cost model employing a Burr distribution is examined. Previously employed methods are refined and extended. A series of approximations are proposed that enable a rapid parameter selection. It is hoped that reducing the computational complexity of previous approaches will lead to wider utilization of x control charts.

A Study About Loss of Costs of Maintenance for Equipment by Using Taguchi Method of Quality Control.

“…But as a rule, there are three variables, they should be selected and assist to monitor and calculate loss of costs of maintenance after designing x-control chart, they are subgroup size (s), interval between successive subgroups (h), control limits (k), and warning coefficient or corrective threshold (w) and most studies assumed them as decision variables in any economic design models [23,24].…”