未來展望

(1) 電磁鋼片在沖壓製程時產生的加工硬化和塑性應變只是影響電磁特性的眾 多因素之一，還有殘留應力、差排、晶粒扭曲變形等等因素在加工時產生 並影響著電磁特性，這些因素之間都具有關聯性，未來可以試著探討這些 因素等對電磁特性的影響，如殘留應力。

(2) 一般上電動機在量產前會先做一套單冲模具進行測試。利用該單冲模具使 用本實驗對加工硬化面積影響最小之沖壓參數進行定子和轉子的沖壓，試 做電動機，比較目前業界普遍使用的沖壓參數，研究實際效率是否有提示 的結果。

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(3) 本研究的實驗結果，有許多地方無法明確解釋清楚，比如沖頭行程的振動 模式為何能降低沖壓切邊的加工硬化、倒角部位的加工硬化距離為什麼比 直線部位的高，這些都是未來可以深入探討的地方。

(4) 本研究只探討槽型的直線部位和倒角部位兩個剖面，但還有很多幾何部位 的影響仍不明確。此外，倒角部位的加工硬化面積確定較直線部位來的 大，但倒角部位影響的範圍有多寬，也是一個值得探討的地方。

(5) 本研究配合槽形幾何形狀和沖壓參數的最佳化，目前可將最大加工硬化距 離降為 1mm 以下。若這些加工硬化的材料正是造成定子電磁特性惡化的 主因，那麼選擇不影響電磁特性的製程去除該硬化區，使得去除該硬化區 後的定子沒有電磁惡化，或許可達到如電磁鋼片退火一樣的效果。

(6) 在本研究中，振動模式的振動振幅對加工硬化面積沒有明顯趨勢。在做振 動振幅參數設定時振幅 80µm 相對於振幅 10µm 是相當大的差距，若在振 幅 10µm 及振幅 80µm 之間增加一個振幅條件將會使實驗更完整。

(7) 本研究目前以量測加工硬化為主。斷面品質（如光亮面與破裂面之間的比 例）對加工硬化、應變是否具有關聯性，也是應該研究討論的。若斷面品 質跟加工硬化有關聯性，在沖壓加工後直接觀察斷面，會比量測加工硬化 簡單許多。

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作者簡歷

基本資料

姓名（中）：黃金通

（英）：BONG KIM THONG 生日：1988 年 8 月 20 日

國籍：馬來西亞

住址：5, Jalan Desa 7, Taman Desa, 86000 Kluang, Johor, Malaysia.

電郵：[email protected]

學歷

2013.09～2015.08 國立台灣大學機械工程研究所製造組畢業 2008.09～2013.08 國立台灣大學機械工程學系畢業

成果發表

1. 蔡曜陽，黃金通，“馬達矽鋼片沖壓製程對電磁特性的影響”，第 31 屆中國機 械工程學會研討會，2014