Quality Control Method of Engine Manufacturing Process Using Data Mining Technique

Objectives: This study analyzes the major defect factors that influence the defective percentage of an engine manufacturing processes and to find the processes that influence other defect factors. Methods/Statistical Analysis: This study uses the process data from actual manufacturing sites, and analyzes the major defect factors occurring in the manufacturing processes using the data mining techniques. Analysis on the process data has two steps: The first step is to preprocess to reorganize the raw data into accurate data, and the second step is to analyze for each defect factor to classify defects by factors. Findings: As a result of the analysis, it found defects of LEAK during operation of the engine, defects in components of the inlet and outlet systems of the engine and defects in components of the electronic system of the engine influence the percent defective. This study also analyzes the main defect types of product using big data from the engine manufacturing process. To solve the problem that was hard to find analytic data or useful information out of the huge data collected in real time, the data mining technique was employed. It is a practical methodology to offer beneficial information for decision making in the database marketing field. In terms of product quality management, estimating the defect types in the manufacturing process stage will shorten the time consumption in resolving the problems. By reducing the defective products in advance, it also lowers the cost accompanied with defect occurrences and raw materials. Improvements/Applications: This study suggests methods to control quality in manufacturing processes with an application of preventing defects in advance and further to control the future defects.

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