彩紋複合金屬板斷面之研究｜國立臺灣科技大學博碩士論文系統

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研究生：	鄭欣郎 Hsin-Lang Cheng
論文名稱：	彩紋複合金屬板斷面之研究 Research of a colored composite metal cutting section
指導教授：	黃佑民 You-Min Huang
口試委員:	林榮慶 Zone-Ching Lin 許覺良 Jue-Liang Xu
學位類別：	碩士 Master
系所名稱：	工程學院 - 機械工程系 Department of Mechanical Engineering
論文出版年：	2012
畢業學年度：	100
語文別：	中文
論文頁數：	105
中文關鍵詞：	彩紋金屬板
外文關鍵詞：	colored composite metal cutting section
相關次數：	點閱：103 下載：3
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上一筆

板金沖壓加工主要是利用沖壓設備及模具，將金屬板金施以加工，並能快速獲得所需成品之加工方法。由於沖壓加工生產有快速、方便、生產成本低⋯等特性，所以板金沖壓技術廣泛的應用在汽車、航太產業、家電用品產業及3C等產業。
有鑒於目前金屬材料的運用越來越普及，一般人對於金屬表面的質感要求也越來越高，而彩紋金屬板是由兩種以上的材料所組成，故在加工時不同於以往的沖壓條件，本研究即是根據沖壓條件的差異訂出較佳的成形條件，以獲得較佳的品質為目的。然而，彩紋金屬板加工過程受到諸多因素之影響，這些因素包括材料、模具與製程參數，其沖剪成品之斷面品質控制不易。因此，如何提高斷面品質，同時減少模具開發時程並降低成本，一直是沖壓工業所關注的課題。
本研究主要目的在於設計一套可沖剪之模具，以改變沖頭與母模間隙、彩紋皮膜厚度、沖頭速度等製程參數，並以厚度為1.0mm 之板材進行沖剪實驗，透過光學顯微鏡進行量測，對剪斷截面之表面長度進行量測與分析，期望以加工條件與材料性質對於剪斷面品質之影響，求出較佳品質的切斷面產品。

Stamping metalwork works by using stamping equipment and molds to process metal quickly into products required. Stamping is quick, convenient and low in production costs, and therefore, widely used in the manufacture of, for example, cars, aircrafts, home appliances and 3C products.
With the increasingly popular application of metallic materials, the public demand more for the texture of metal surface. Colored composite metal cutting sections are often made of two or more type of different materials, and therefore, special stamping conditions are required for the production. This study is dedicated better the product quality by establishing the better machining conditions based on the inherent difference of materials. However, a number of factors have influence on the machining conditions for colored metal sheets, including material, mold and process parameters. Besides, it is difficult to control the quality of sheared cross section. As a result, it is always an important issue for stamping industry to improve the cross section quality while reducing the mold development schedule and lowering the costs.
The purpose of this study was to design a set of stamping molds to change the clearance between stamping head and mother mold, color film thickness and stamping head speed, among other parameters. Metal sheets of 1.0mm thick were used for stamping experiments. Microscope was used for measurement and analysis of the surface length on the sheared cross sections in the hope to find out the influence of machining conditions and material properties on the quality of the sheared cross section and obtain the product with better cross-sectional quality.

摘要 ....................................................Ⅰ
英文摘要 ................................................Ⅱ
誌謝 ....................................................Ⅲ
目錄 ....................................................Ⅳ
符號索引 ................................................Ⅶ
圖表索引 ................................................Ⅷ
第一章 緒論 .............................................1
 1.1 前言 ...............................................1
 1.2 研究動機與目的 .....................................1
 1.3 研究範圍 ...........................................2
 1.4 文獻回顧 ...........................................3
 1.5 論文架構 ...........................................4
第二章 彩紋金屬板與沖壓加工概論 .........................5
 2.1 何謂彩紋金屬板 .....................................5
       2.1.1彩紋金屬特性 ................................7
       2.1.2彩紋金屬板的應用 ............................8
 2.2 沖壓加工概論 .......................................9
       2.2.1沖剪原理 ....................................9
       2.2.2沖剪負荷 ....................................16
 2.3 沖壓下料過程壓力與速度的特性 .......................18
第三章 實驗方法、設備與步驟 .............................20
 3.1 實驗方法 ...........................................20
 3.2沖壓機試驗機 ........................................21
 3.3 模具設計 ...........................................23
 3.4 實驗材料 ...........................................30
 3.5 掃描式電子顯微鏡 ...................................32
 3.6 實驗步驟 ...........................................34
第四章 實驗結果分析與討論 ...............................36
 4.1沖壓剪斷製品之觀察 ..................................36
 4.2沖壓製品的品質研判 ..................................72
       4.2.1 崩垂斷面分析 ...............................73
       4.2.2 剪斷面斷面分析 .............................75
       4.2.3 撕裂面及毛邊變化斷面分析 ...................77
       4.2.4 整體金屬斷面與毛邊變化分析 .................79
       4.2.5皮膜毛邊分析.................................81
 4.3 成形條的建議表 .....................................83
第五章 結論與建議 .......................................85
 5.1結論 ................................................85
 5.2 未來之展望 .........................................86
參考文獻 ................................................87
作者簡介 ................................................89

                                

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