Six Sigma Methodology for Improving Manufacturing Process in a Foundry Industry

Abstract

Six sigma is a project-driven management approach that is relevant to all the fields starting from manufacturing to service industries. The main goals of six sigma are improving efficiency, profitability, and process capability. In this paper, six sigma methodology based on DMAIC approach is applied to a foundry industry. The scope of the study is limited to automated high-pressure green sand moulding line. The root causes of different casting defects are identified and various actions are recommended to improve the production process. As a result, the overall sigma level of the industry is improved at an acceptable level.

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