Improvement of overall equipment effectiveness of machining centre using tpm

Abstract

Total Productive Maintenance (TPM) is a lean manufacturing technique that concentrates on improving the overall equipment effectiveness of a machine which is used for production. TPM ensures the availability of a machine and its implementation method involves continuous improvements which lead to reduced losses. This paper presents a case study on improving Overall Equipment Effectiveness (OEE) of equipment in a manufacturing company which manufactures steering housing and also to determine and address the facets which act as barriers in implementing TPM in the machine shop. The major issues faced by this company are the lack of stock in feed and tool changeover time which reduces the availability of the machine which in turn results in tremendous drop in OEE. The current level of OEE for that particular machine is found to be 54.09%. By implementing Lean concepts such as TPM and Single Minute Exchange of Dies (SMED) would improve OEE by 6.06%.