Machining mechanism research of glass by discrete element method

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• 作者：Ying Qiu (1)
  Meilin Gu (1)
  Zhi Wei (1)
  
  1. School of Mechanical Engineering ; Hebei University of Technology ; Tianjin ; 300130 ; China
  
• 关键词：Discrete element method ; Glass ; Machining force ; Micro ; machining ; Size effect
• 刊名：Journal of Mechanical Science and Technology
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：29
• 期：3
• 页码：1283-1288
• 全文大小：2,590 KB
• 参考文献：1. Holthaus, M. G., Twardy, S., Stolle, J., Riemer, O., Treccani, L., Brinksmeier, E., Rezwan, K. (2012) Micromachining of ceramic surfaces: Hydroxyapatite and zirconia. J. Mater. Process Tech. 212: pp. 614-624 CrossRef
  2. Choo, K. L., Ogawa, Y., Kanbargi, G., Otra, V., Raff, L. M., Komanduri, R. (2004) Micromachining of silicon by short-pulse laser ablation in air and under water. Mat. Sci. Eng. A-Struct. 372: pp. 145-162 CrossRef
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  11. Fang, N. (2003) Slip-line modeling of machining with a roundedge tool鈥攑art II: analysis of the size effect and the shear strain-rate. J. Mech. Phys. Solids 51: pp. 743-762 CrossRef
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• 刊物类别：Engineering
• 刊物主题：Mechanical Engineering
  Structural Mechanics
  Control Engineering
  Industrial and Production Engineering
  
• 出版者：The Korean Society of Mechanical Engineers
• ISSN：1976-3824

文摘

The discrete element method (DEM) is applied to glass micromachining in this study. The indentating, cutting, micro milling process are simulated by the established DEM matching the main mechanical properties of glass in three sets of standard tests. Results show that the vertical damage depth is prevented from reaching the final machined surface in cutting process. Tool rake angle is the most remarkable factor influencing the chip deformation and cutting force. The final machined surface is determined by the minimum cutting thickness per edge. Different cutting thickness, cutter shape and spindle speed largely affect the mechanism of glass.