【摘要】 简要回顾了采用分子动力学方法模拟纳米加工过程的历史,介绍了分子动力学仿真方法的基本原理以及典型单晶体材料纳米切削机理的分子动力学仿真研究成果,并从模型建立、模拟尺度以及工件和刀具的影响等方面分析了纳米加工过程分子动力学模拟研究的最新进展。结果表明,建立三维大规模及多尺度的纳米加工仿真模型已经成为目前研究的主要方向;工件和刀具对纳米加工影响的研究也逐渐深入,涉及工件的晶向、缺陷以及刀具参数和磨损等方面的问题。更多还原

【Abstract】 The history of nano-cutting simulated by molecular dynamics(MD) was briefly reviewed.The basic principle of MD was introduced and the cutting mechanisms of typical single crystal material analyzed with the MD simulation were presented.The last development of MD on nanometric machining was discussed according model building,simulation scale and the effects of workpiece and tool.The discussion implies that the simulation of 3D large-scale and multi-scale model characterizes the current research direction,the effects of workpiece and tool on machining are further investigated,involve which crystal orientations and defects of workpiece,parameter and wear of tool,etc.更多还原