Molecular dynamic simulation for nanometric cutting of single-crystal face-centered cubic metals

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• 作者：Yanhua Huang (4)
  Wenjun Zong (5)
  
  4. Research Center of Laser Fusion ; China Academy of Engineering Physics ; Mianyang ; 621900 ; People鈥檚 Republic of China
  5. Center for Precision Engineering ; Harbin Institute of Technology ; P.O. Box 413 ; Harbin ; 150001 ; People鈥檚 Republic of China
  
• 关键词：Nanometric cutting ; Single crystal ; Fcc metal ; Molecular dynamics
• 刊名：Nanoscale Research Letters
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：9
• 期：1
• 全文大小：1,960 KB
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• 刊物主题：Nanotechnology; Nanotechnology and Microengineering; Nanoscale Science and Technology; Nanochemistry; Molecular Medicine;
• 出版者：Springer US
• ISSN：1556-276X

文摘

In this work, molecular dynamics simulations are performed to investigate the influence of material properties on the nanometric cutting of single crystal copper and aluminum with a diamond cutting tool. The atomic interactions in the two metallic materials are modeled by two sets of embedded atom method (EAM) potential parameters. Simulation results show that although the plastic deformation of the two materials is achieved by dislocation activities, the deformation behavior and related physical phenomena, such as the machining forces, machined surface quality, and chip morphology, are significantly different for different materials. Furthermore, the influence of material properties on the nanometric cutting has a strong dependence on the operating temperature.