Quality Improvement By Using Six Sigma In Manufacturing Industry

Rina Syahira , Mohd Sharif (2009) Quality Improvement By Using Six Sigma In Manufacturing Industry. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The good quality of product or service performance is important to reach customer’s expectation. This project was aimed to analyze the product quality problem faced by Maruwa (Malaysia) Sdn. Bhd. which the defect products are frequently received from customer claim. To improve the problem, Six-Sigma DMAIC methodology has been implemented. In order to analyze the data, the Statistical Quality Control (SQC) tools were used such as pareto chart, histogram and cause and effect diagram. Pareto analysis was turn down the scope of study by identified the highest rejection rate of model, the most common defects and also determining the particular process that cause the defects product was got by customers. Cause-and-effect diagram had been used to lists out all possible causes that could bring the problem and identified the main factor of problem. Through analysis, crack problem was the major defect of customer claim while visual inspection is the process of crack inspection. Suggestions for improvements such as the job rotation and machine adjustment had been suggested. Control of the product quality after the improvement also suggested.

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