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標題: 鐵皮剪刀刃形狀研究
Study of the knife-edge of the Aviation Tin Snips
作者: 陳弘霖
Chen, Hong-Lin
關鍵字: Aviation tin snips;鐵皮剪;cutting tools;shape of knife edge;CAE;切削刀具;刀刃形狀;電腦輔助工程
出版社: 機械工程學系所
引用: [1] Merchant, M.E. ”Mechanics of the metal cutting process, “J. Appl.Phys. , Vol.16 , pp.267-308 (1945) [2] Lee , L. E. and D. W. Shaffer, “The theory of plastic applied to a problem of machining, ”Trans. ASME J. Appl. Mech., Vol.118 , pp.405-413 (1951) [3] Iwata , K. , Osakada , K. , Terasaka , Y. , “Process Modeling of Orthogonal Cutting by the Rigid-Plastic Finite Element Method,”ASME Journal of Engineering Material and Technology , Vol. 106 , 1984 , pp.132-138. [4] Komvopoulos , K. and S. A. Erpenbeck , “Finite element modeling of orthogonal metal cutting ”Trans. ASME , Journal of Engineering .for Industry Vol.113 , pp.253-267 (1991) [5] Jang,D.Y.and Seire,A.,” Machining Parameter Optimization for Specified Surface Conditions ”, Journal of Engineering for Industry,114(2),May 1992 , pp.254-257. [6] Shih , A. J. , “Finite element simulation of orthogonal metal cutting , ”Trans. ASME , Journal of Engineering .for Industry Vol.117 , pp.84-93. (1995) [7] Dae Cheol Ko et al., ”Application of Artificial Neural Network and Taguchi Method to Perform Design in Metal Forming Considering Worksbility ”,International Journal of Machine Tools & Manufacture ,39,1999,pp.771-785. [8]R.C. Hibbeler ,”Mechanics of Materials ”, 1994. [9]McGraw Hill ,”Mechanical Design”. [10]Roy R. Craig and Jr. ,”Structural Dynamics”, Wiley. [11]小栗富士雄 ,”標準 機械設計圖表便覽 增訂三版”, 1992眾文圖書股份有限公司。 [12] 金屬切削原理許彥夫、楊純至 編譯 1990復文書局出版pp.127-145。 [13] 王肇祥 ,”模具概論”,2003全威出版pp.16-70。 [14] David Broek著,陳文華、張士欽編譯,”工程破裂力學”,1995國立編譯館。 [15] 傅光華,“切削工具學”,1982高立圖書。 [16] 吳家駒編譯,”切削加工法”1985徐氏基金會出版 pp.15-66。 [17] 傅光華,”切削工具學” 編著 1982高立圖書有限公司出版pp.153-178。 [18] 高道鋼,”譯實用銑床加工技術”1999全華科技圖書股份有限公司 印行。 [19] 吳家駒編譯,”工具機之理論及實際(下冊)”1983徐氏基金會出版 [20] 李紘全編,”ANSYS LS-Dyna分析手冊 ”2007國家高速網路與計算中心印行。
aviation tin snips在中文名稱中一般稱之為鐵皮剪,是用在剪裁較硬材質的工件,例如鐵、不銹鋼等,由於要剪裁的材質通常硬度都很高,所以剪刀的材質也相對於工件還要更高,因此鐵皮剪的材質一般都是使用合金鋼材。剪刀的基本原理其實跟槓桿原理與應力集中破壞有關,本文主要是針對鐵皮剪的刀刃曲面做分析,試著討論曲面的設計與出力大小關係。
在科技發達的現今,電腦的使用與輔助已成了設計者不可或缺的必備工具,也由於電腦的強大運算功能,相對應的軟體設計也跟著逐步發展,因此我們也可以分析較為複雜的機構模態。而面對於大多數的三維結構工程問題,一般的設計者經常使用如有限元素和動態模擬的數值方法來解決。本文參考切削刀具與衝壓加工原理,利用電腦輔助工程(CAE: Computer-Aided Engineering)之相關技術,來進行剪切模擬分析來探討剪切過程中,刀刃形狀與反力的效應,並試著討論其關係式,希望本分析的模擬分析能提供設計者參考,並提供給鐵皮剪設計的方向依循。

Aviation tin snips, normally called iron shears in Chinese, is the tool for using in snipping off the hard material such as iron, stainless steel, etc. Because the material of the work piece for snipping off usually has high hardness, therefore, the aviation tin snips are most made of alloy steel. The basic principle of the iron shears is actually related to the principle of lever and damage due to stress concentration. The curved surface of the shears is analyzed to study the relationship between the curvature and applied force in this research.
These days, using computer is becoming a standard tool in design. Because the hardware's computing function is keeping strengthened and the software also is becoming more mature, we can use it to analyze a complex dynamic system. For solving most three dimensional structure engineering problems, the numerical techniques such as finite element method or dynamic simulation are often been used. The technique of CAE (Computer-Aid Engineering) with the help of theories of cutting tool and pressing is used in this research to simulate the process of snipping. The shape of knife edge and resultant forces are discussed. The purpose of this research is to provide a design guide and reference for the development of iron shears.
其他識別: U0005-2808200715112000
Appears in Collections:機械工程學系所

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