淡江大學機構典藏:Item 987654321/96472
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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/96472


    Title: 微小板材外緣內曲摺邊成形之研究
    Authors: 葉豐輝;李經綸;盧永華;蔡坤男
    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: 2014-03-07 11:45:55 (UTC+8)
    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:[Graduate Institute & Department of Mechanical and Electro-Mechanical Engineering] Proceeding

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