出版社：Center for Quality, Faculty of Engineering, University of Kragujevac, Serbia
摘要：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.
关键词：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).
