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基于准连续介质理论的单晶铜纳米切削过程仿真

陈晓韦 张效栋 房丰洲

陈晓韦, 张效栋, 房丰洲. 基于准连续介质理论的单晶铜纳米切削过程仿真[J]. 机械科学与技术, 2013, 32(8): 1098-1102.
引用本文: 陈晓韦, 张效栋, 房丰洲. 基于准连续介质理论的单晶铜纳米切削过程仿真[J]. 机械科学与技术, 2013, 32(8): 1098-1102.
Chen Xiaowei, Zhang Xiaodong, Fang Fengzhou. Simulating Nanometric Cutting Mechanism of Single-crystal Copper with Quasicontinuum Numerical Method[J]. Mechanical Science and Technology for Aerospace Engineering, 2013, 32(8): 1098-1102.
Citation: Chen Xiaowei, Zhang Xiaodong, Fang Fengzhou. Simulating Nanometric Cutting Mechanism of Single-crystal Copper with Quasicontinuum Numerical Method[J]. Mechanical Science and Technology for Aerospace Engineering, 2013, 32(8): 1098-1102.

基于准连续介质理论的单晶铜纳米切削过程仿真

基金项目: 

国家重点基础研究发展计划(973计划)项目(2011CB706703)

国家自然科学重大研究计划重点项目(90923038)资助

详细信息
    作者简介:

    陈晓韦(1986-),硕士研究生,研究方向为超精密加工和测试计量技术,chenxiaowei1030@126.com;房丰洲(联系人),教授,博士,fzfang@gmail.com

    陈晓韦(1986-),硕士研究生,研究方向为超精密加工和测试计量技术,chenxiaowei1030@126.com;房丰洲(联系人),教授,博士,fzfang@gmail.com

Simulating Nanometric Cutting Mechanism of Single-crystal Copper with Quasicontinuum Numerical Method

  • 摘要: 为了提高计算精度和扩大计算尺寸,克服分子动力学模拟方法计算效率低、模拟尺寸小、边界条件影响大等特点,本文采用多尺度准连续介质力学数值方法对单晶铜纳米切削过程进行仿真,探究单晶铜的纳米切削机理。验证了不同的刀具前角、切削厚度对切削过程中的位错、切削力和残余应力的影响。实验结果表明,当采用同一把刀具时,随着切削厚度的增加切削过程中的切削比能逐渐减小而位错深度、残余应力均相应增加。当采用同一个切削厚度,不同的刀具前角时发现,采用负前角切削过程中的切削力波动范围最大。
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  • 收稿日期:  2012-06-02

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