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研究生: 黃國禎
Guo-Jhen Huang
論文名稱: 板材非對稱壓延之塑性變形行為的實驗研究
Experimental study of plate asymmetrical rolling of plastic deformation behavior
指導教授: 葉維磬
Wei-Ching Yeh
口試委員:
學位類別: 碩士
Master
系所名稱: 工學院 - 機械工程學系
Department of Mechanical Engineering
畢業學年度: 97
語文別: 中文
論文頁數: 78
中文關鍵詞: 縮減率壓延曲率非對稱壓延
外文關鍵詞: reduction rate, rolling curvature, asymmetrical rolling
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  • 本文主要針對板材非對稱壓延探討其壓延力及壓延扭矩,使材料於壓延製程安排上,更趨自由與多樣性,在壓延工業之應用上,具有極大之助益;但於非對稱壓延後之板材易產生彎曲現象而造成產品品質降低及設備損壞。
    本文以試片厚度2.90mm的1050鋁板進行非對稱壓延實驗,以探討試片縮減率、輥輪周速比及界面潤滑條件對成形板材彎曲曲率的效應。實驗結果顯示,(1) 成形試片曲率達到平板狀態理想值(±0.0025)的縮減率發生在10%與40%;(2) 成形試片曲率達到平板狀態理想值(±0.0025)的縮減率和周速比係成正比的關係;(3) 不同界面潤滑條件對於壓延力及壓延扭矩有明顯的降低效應,且對改善成形試片曲率有明顯的效應。


    Due to the asymmetrical rolling can reduce rolling force and rolling torque that will make rolling process also flexible and variable. There are extreme advantages in application of rolling industry. The specimens will curvature after the asymmetrical rolling, the flat bending will reduce production quality and impact machine.
    This paper observe various of curvature ratio at specimens thickness 2.90mm asymmetrical rolling with different,mismatch peripheral speed,reduction, lubrication.The result is that:(1)The specimens reduction that curvature ratio is between ±0.0025 is incidence at 10% and 40%.(2) The specimens reduction that curvature ratio is between ±0.0025 is directly proportional to mismatch peripheral speed.(3) With Lubrication, rolling force and rolling torque is decreased.

    中文摘要 I 英文摘要 II 誌謝 III 目錄 IV 圖目錄 VII 表目錄 X 第一章 緒論 1 1-1 前言 1 1-2板材非對稱壓延之應用製造簡介 2 1-3 研究動機 4 第二章 理論基礎 5 2-1 壓延種類 5 2-2 文獻回顧 7 2-2-1 實驗研究方面 7 2-2-2 理論解析方面 11 2-2-3輥軋壓力計算 16 2-2-4輥軋扭矩計算 17 2-2-5軋延缺陷之相關研究 17 2-2-6接觸摩擦理論方面 19 第三章 實驗設備與方法 21 3-1 實驗設備 21 3-1-1 壓延機 21 3-1-2 資料擷取系統 22 3-2 實驗方法 22 3-2-1 試片準備 22 3-2-2 實驗條件 24 3-2-3 編號表示意義 24 3-2-4 輥輪與試片之界面潤滑條件 25 3-2-5 輥輪及工作平台之調整 26 3-2-6 壓延實驗步驟 27 3-3 試片成形曲率之量測 28 3-3-1 曲率計之測定原理 28 3-3-2 曲率量測方法之探討 29 3-3-3 曲率計之校正 30 3-4 拉伸試驗 30 3-5 環壓試驗 32 第四章 結果與討論 35 4-1 拉伸實驗 35 4-2 環壓實驗 36 4-3壓延實驗結果 36 4-4-1壓延力及壓延扭矩之比較 38 4-4-2周速比對成形試片曲率之效應 39 4-4-3界面潤滑條件對成形試片曲率之效應 42 第五章 結論 43 參考文獻 45 附錄A 71 附錄B 77

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