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Quality Improvement by using Six Sigma DMAIC in an Industry

Author : Amit Yadav and V. K. Sukhwani

Pages : 41--46
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In present era of competition, Six Sigma has been considered as a powerful business strategy that employs a well-structured continuous improvement methodology to reduce rejections within the manufacturing processes using effective application of statistical tools and techniques. This paper presents the implementation of Six-sigma methodology for reducing rejection of automobile part in an industry. The DMAIC methodology has been used to achieve quality level. During this process, data for all possible causes were collected analysed and thereby conclusions were drawn. Implementation of six sigma resulted in reduction of rejection and therefore reduced the Defect per Million Output (DPMO) from68181to 9090.9. This increased the Sigma level from 2.99 to 3.86, with optimal solution. Finally, implementation of Six-sigma methodology has resulted increase in quality level of assembly line for the automobile industry.

Keywords: DMAIC Methodology, DPMO, Six Sigma, Sigma Level, Statistical Tools and Techniques.

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