運用田口法於繞線電感之製程能力改善
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| 摘要 本研究旨在以田口方法對繞線電感製程效率與品質改善，進行全面且深入的探討。透過特性要因圖分析繞線電感製程的可能影響因子，與專案團隊討論確定關鍵因子，再以田口方法對製程參數的關鍵因子進行最佳化，接續將最佳參數導入量產實驗測試再現性，結果製程能力Cpk由1.35上升到2.11，符合車用客戶要求標準。繞線電感收成直通良率(感值命中率)由平均72.72%上升到平均95%以上，接續使用樣本平均數和全距管制圖協助監控製程變異。個案公司製程能力與感值命中率提升而節省整體作業工時，經團隊評估訂單交期從25工作天縮短到20工作天。透過本研究為個案公司提升車用市場競爭能力。
關鍵字：繞線電感、田口方法、SPC管制圖。 ABSTRACT This study aims to conduct a comprehensive and in-depth discussion on improving the efficiency and quality of wire-wound inductor manufacturing processes using the Taguchi method. Analyze the possible influencing factors of the wire-wound inductor manufacturing process through the characteristic factor diagram, discuss with the project team to determine the key factors, then use the Taguchi method to optimize the key factors of the process parameters, and then introduce the best parameters into mass production experiments to test reproducibility. , As a result, the process capability Cpk increased from 1.35 to 2.11, which is in line with the requirements of automotive customers. The pass-through yield rate (value hit rate) of wire-wound inductors has increased from an average of 72.72% to an average of over 95%, and sample averages and full-range control charts have been used to help monitor process variations. The case company's process capabilities and value hit rate were improved, which saved overall operating hours. The team evaluated that the order delivery time was shortened from 25 working days to 20 working days. Through this research, the case company can improve its competitiveness in the automotive market. KEYWORDS: Wirewound Inductors; Taguchi Methods; SPC Control Drawings |