IMPROVE MACHINING PROCESS CAPABILITY BY USING SIX-SIGMA

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IMPROVE MACHINING PROCESS CAPABILITY BY USING SIX-SIGMA

Journal Title: International Journal for Quality Research - Year 2011, Vol 5, Issue 2

Abstract

Six-Sigma is an improvement strategy for achieving customer satisfaction by reducing variation and thus producing products and services better, faster and cheaper. This study presents a Six-Sigma project of an automotive plant illustrating how the DMAIC methodology and statistical techniques were applied to resolve the issue of manufacturing process capability. This project has substantially benefitted the organization by reducing the variation of bore size of crank case, achieving zero rejection and improving the on time delivery. By using appropriate qualitative and quantitative tools in different phases of the DMAIC methodology, the critical output, key process inputs and root causes were identified, analyzed and validated. This project methodology can be used in general to reduce process variation for any other manufacturing processes as well, which will help in improving customer satisfaction.

Authors and Affiliations

Sanjit Ray, Prasun Das

Keywords

Six Sigma; DMAIC (Define – Measure – Analyze – Improve – Control) SIPOC; Critical to Quality (CTQ); Key Process Input Variable (KPIV); Repeatability Reproducibility; Sigma Rating; Analysis of Variance (ANOVA).

EP ID EP254851
DOI -
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