摘 要
本研究是以有限元素法模擬分析板材壓延過程，將使用 DEFORM套裝軟體模擬，及實驗之手法來探討熱間複合板壓延時，板材於滾隙之變形行為。
大致內容可分成三部分，一是探討複合板（三層板）對稱壓延，兩種不同材質，且上下輥輪之輥徑、滾速皆一致之上下對稱壓延。其次為探討複合板（二層板）之非對稱壓延，但不限制上下輥輪之輥輪一致與上下板材板厚一致，著重於出口板厚比、壓延荷重及出口曲率等。最後以實驗方法探討複合板（三層板）熱間壓延，著重於結合強度之探討。

Abstract


This paper investigates plastic deformation of sheets at the roll-gap in complex rolling of sandwich sheets unbonding before rolling by Finite Element Simulation approaches. The effects of reduction, thickness ratio of inner layer and total thickness at the entrance, rolling force and exit curvature are discussed systematically. Furthermore, the FEM predictions are compared with experimental results and they are in good agreement.
Sandwich sheets combined from aluminum and copper sheets are employed to carry out experiments of hot rolling of sandwich sheets.
Further, at high temperature, the bonding strength decreases.

目錄
摘要…………………………………………………………Ⅰ
目錄…………………………………………………………Ⅱ
圖表說明……………………………………………………Ⅳ
第一章 序論………………………………………………1
1-1 前言………………………………………………1
1-2 複合板之應用與製造簡介………………………1
1-2-1 複合板之應用………………………………2
1-2-2 複合板之製造法……………………………2
1-2-2-1 熱間壓著壓延法………………………3
1-2-2-2 冷間壓著壓延法………………………4
1-2-2-3 擴散結合法……………………………4
1-2-2-4 硬面焊接法……………………………4
1-2-2-5 鑄造（澆鑄）壓延法…………………5
1-2-2-6 爆炸焊接法……………………………5
1-3 文獻回顧…………………………………………6
1-4 研究目的…………………………………………6
1-5 論文架構…………………………………………7
第二章 多層板之有限元素模擬分析……………………11
2-1 DEFORM軟體介紹…………………………………11
2-2 多層板之DEFORM模擬分析………………………12
2-2-1 雙層板壓延加工之模擬……………………12
2-2-2 三層板壓延加工之模擬 …………………13
2-3 單一解析結果與討論……………………………14
2-3-1 等效應力分佈………………………………14
2-3-2 壓延負荷……………………………………14
2-3-3 等效應變分佈………………………………15
2-3-4 平均應力等高線分佈………………………15
2-4 輥徑比對解析結果之影響………………………15
2-5 初始板厚比對解析結果之影響…………………16
第三章 三層板熱間複合壓延實驗………………………35
3-1 實驗設備與步驟…………………………………35
3-1-1 實驗設備……………………………………35
3-1-2 實驗設備之校正……………………………36
3-1-2-1 荷重計（Load cell）之校正………36
3-1-2-2 資料擷取系統之校正…………………36
3-1-3 試片準備……………………………………36
3-1-4 實驗步驟……………………………………37
3-2 單軸拉伸試驗……………………………………38
3-2-1 加工硬化指數n值及強度係數C值…………39
3-3 複合材結合強度之測試…………………………39
第四章 實驗結果與解析結果之比較……………………50
4-1 三層板之探討……………………………………50
4-2 實驗結果之探討…………………………………51
第五章 結論………………………………………………65
5-1 研究成果概要……………………………………66
5-2 今後研究方向……………………………………67
參考文獻……………………………………………………68

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