博碩士論文 93333006 詳細資訊




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姓名 鄭志忠(Chih-Chung Cheng)  查詢紙本館藏   畢業系所 機械工程學系在職專班
論文名稱 異入射角度之非對稱壓延對A1050板材曲率變化之實驗研究
(Experimental research of curvature variation for aluminum plate A1050 with different entry angle of asymmetrical rolling)
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摘要(中) 由於非對稱壓延可使壓延材料於壓延製程中更趨自由性與多樣性,在壓延工業應用上,具有正面之助益;但於非對稱壓延後之板材易產生彎曲之現象,它將會造成產品品質降低與設備損壞之缺點。
本文主要以實驗的方法,觀察A1050鋁板以不同的入射角度進行壓延,對壓延後板材的變化情形,探討不同的入射角度與曲率、縮減率之關係及曲率與不同界面摩擦條件之關係,並討論不同的入射角度對壓延力和壓延扭矩之關係。期望可由本文所得之實驗結果,提供理論解析之驗證及非對稱壓延製程品質改善之參考,藉以達到曲率控制,入射角度控制,壓延力控制,進而減少壓延道次,以期達到降低壓延能量之經濟性製程。
摘要(英) Asymmetrical rolling will make rolling process flexible and variable. These are extreme advantages applicable to rolling industry. The flat bending curvature of the specimens after the asymmetrical rolling will reduce production quality and cause impact on the production machine.
This research mainly uses experiments to observe curvature of aluminum flat A1050 at rolling mill with different contact entry angle and the deviations after rolling periods ,so as to investigate or explore the relations between different entry angle vs decrease rate and the relations between different rate of curvature vs different interface frictions,further more also discuss the relations between different entry angle vs rolling force or rolling torque。I personally wish this results from those experiments could provide theoretical analysis proof and could better the asymmetrical process quality,moreover ,this results could be used to control the different curvature rate、entry angle、rolling forces to diminish the rolling times and save the rolling energy for more economical process for those experts who work in this area.
關鍵字(中) ★ 曲率
★ 入射角度
★ 非對稱壓延
關鍵字(英) ★ curvature
★ entry angle
★ asymmetrical rolling
論文目次 中文摘要 I
英文摘要 II
致謝 III
目錄 IV
圖目錄 VI
表目錄 XI
第一章 緒論 1
1-1 前言 1
1-2 板材非對稱壓延 2
1-3 研究動機 3
第二章 理論基礎 4
2-1 壓延種類 4
2-2 文獻回顧 5
2-2-1 實驗研究方面 5
2-2-2 理論解析方面 10
第三章 實驗設備與方法 14
3-1 實驗設備 14
3-1-1 壓延機 14
3-1-2 資料擷取系統 15
3-1-3 資料擷取方式 15
3-2 實驗方法 16
3-2-1 試片準備及編號 16
3-2-2 實驗條件 17
3-2-3 潤滑條件的準備 18
3-2-4 輥輪及工作平台之調整 19
3-2-5 實驗步驟 20
3-3 成形板材之曲率量測 22
3-3-1 曲率計的設計 22
3-3-2 曲率計的量測原理 23
3-3-3 試片曲率的量測方法 23
3-4 拉伸試驗 24
3-5 環壓試驗 25
3-6 Forward Slip 27
第四章 結果與討論 31
4-1 拉伸試驗 31
4-2 環壓試驗 31
4-3 Forward Slip 32
4-4 壓延實驗 33
4-4-1 入射角度對壓延力之影響 34
4-4-2 入射角度對壓延扭矩之影響 35
4-4-3 入射角度對材料彎曲曲率的影響 36
4-4-4 界面摩擦應力對壓延力與壓延扭矩的效應 37
4-4-5 界面摩擦應力對材料彎曲曲率的效應 38
4-4-6 試片初始厚度對壓延力及壓延扭矩的影響 40
4-4-7 試片初始厚度對材料彎曲曲率的影響 41
第五章 結論 44
參考文獻 46
附錄A 90
附錄B 94
附錄C 96
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指導教授 葉維磬(Wei-Ching Yeh) 審核日期 2009-7-21
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