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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/70816

    Title: 微小板材外緣內曲摺邊成形之研究
    Authors: 葉豐輝;李經綸;蔡坤男;盧永華
    Contributors: 淡江大學機械與機電工程學系
    Keywords: 尺寸效應;外緣內曲摺邊;微成形
    Date: 2007-12
    Issue Date: 2011-10-23 21:48:23 (UTC+8)
    Publisher: 高雄市:義守大學
    Abstract: 本文應用有限元素法進行微小板材外緣內曲摺邊成形模擬分析,探討微小板材料片厚度、晶粒大小及摩擦係數對於成形性之影響。本文首先應用Nelder-Mead Method導入考慮料片厚度及晶粒大小之應力應變關係修正式,此式能符合厚度越厚流動應力越大與晶粒越大流動應力越小之趨勢。其次利用有限元素法模擬微小板材外緣內曲摺邊成形,模擬結果顯示,成形負荷與外型輪廓皆能合理呈現。當料片厚度越厚、晶粒越小、摩擦係數越大,其成形負荷越大,而晶粒大小及摩擦係數對直邊與底邊外形輪廓影響不大,但改變料片厚度,會因沖頭負荷增加,造成底邊外型輪廓變化較大。本文結果可提供微小成形相關研究之參考。
    Relation: 中華民國力學學會年會暨第三十一屆全國力學會議論文集=Proceedings of the 31th National Conference on Theoretical and Applied Mechanics,8頁
    Appears in Collections:[機械與機電工程學系暨研究所] 會議論文

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