Determining appropriate maintenance strategy based on decision making grid, Sigma level, and process capability index - with a case study in a steel company

Abstract

In this study, a new approach has been proposed for selecting appropriate maintenance strategies. For this purpose, decision making grid (DMG) has been developed. Sigma level and process capability indexes have been used based on the metric of mean time between failures (MTBF). The proposed approach has been examined on 26 equipments of a steel manufacturing company. Findings imply that a relatively more logical and appropriate set of maintenance strategies can be determined for equipments based on the proposed approach.