應用田口方法優化空心杯馬達製程能力

Using Taguchi Method to Optimize Process Capability of the Hollow Cup Motor

李芳奇(Fang-Chi Li)

指導教授 ： 黃信豪

國立虎尾科技大學/管理學院/工業管理系工業工程與管理碩士在職專班/碩士(2017年)

摘要

空心杯馬達突出的特點主要集中在的電氣性能方面，使其具備了廣闊的應用領域。空心杯馬達的好壞最主要關鍵則是電流值的高低。面對廣大市場需求，好的品質及效率好的製程，成為空心杯馬達製造廠商重要的競爭能力。有效的對製程能力提升、降低成本與不良率，成為製造廠商的重要課題。
在考量馬達製程中，電流值偏高的不良造成馬達燒毀不良比例為最高，因此須考量生產製程中各項條件之方法需求。本研究以以特性要因圖做為討論影響製程因子，找出製程中造成電流值過高的主要因子後加以改善，再運用田口方法尋找製程參數的最佳化，以製程能力指標驗證是否有效提升改善效果，確定有效改善後再將對策標準化，並建立管制圖做為監控各項製程指標。結果顯示本研究在最終於最佳製程建立後，其製程不良率趨勢逐漸下降，故顯示優於傳統製程模式。

關鍵字

空心杯馬達 ； 田口方法 ； 製程能力指標 ； 特性要因圖

並列摘要

The prominent features of the hollow cup motor are its electrical performance. Therefore, it has a wide range of applications. The key factor in determining the performance of hollow cup motor is the level of current value. In the face of the vast market demand, good product quality and process efficiency has become an important hollow cup motor manufacturer's competitive capability. Hence, effective improvement on production process and reduction in cost and defect rate have become an important issue for hollow cup motor manufacturers.
In the motor manufacturing process, the highest proportion of bad motor is caused by high current value. Therefore, it is necessary to consider all the condition requirements in the production process. In this study, the cause and effect diagram is used to identify the influence factors of high current value. Then, the Taguchi method is applied to find the optimal process parameters. And then, process capability index is used to verify the improvement of the process. Finally, control charts are established based on the standardize procedure to monitor all the process indicators. The result shows that defect rate has gradually declined after the opimal process parameters are applied.

並列關鍵字

Hollow cup motor ； Taguchi method ； process capability index ； cause and effect diagram

參考文獻

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18. Ross, P. J. (1996). Taguchi Techniques for Quality Engineer, McGraw-Hill, New York.

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