Quality Optimization in The Manufacturing Industry: An Application Case

Lee, Weng Sum (2010) Quality Optimization in The Manufacturing Industry: An Application Case. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This report presents a research on quality optimization in the manufacturing industry.Nowadays, quality plays an important role in controlling the properties of a product. By providing optimal quality, the cost for rework or defect could be reduced. This research mainly focuses on the defects problem in one of the company in the manufacturing industry, namely ACME Ferrite Products Sdn. Bhd. The objectives of this research were to identify, analyze and recommend a solution for the defects problem in the manufacturing industry. The Six Sigma methodology was used in conducting this research. It is a step-by-step methodology that is consists of 5 important stages, such as define, measure, analyze, improve and control. As for the data analysis, some of the quality control tools such as cause and effect diagram, pareto chart, flow chart, histogram, and control chart were used. The main type of defect, which is dimension defect, was identified and proper tools will be used to analyze the quality problem. Next,the major defect was highlighted and analyzed. The root causes of the defects were investigated in this research and recommendations for improvement were proposed, such as job rotation, investigation of the significant response in sintering and barreling process by using Taguchi Method and etc. After improvement is done, some control steps, such as x bar chart were suggested in order to maintain the outcome of this research.

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