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应用科学学报 ›› 2004, Vol. 22 ›› Issue (2): 223-227.

• 论文 • 上一篇    下一篇

金属切削刀具前、后刀面摩擦状况的数值模拟

谢峰, 刘正士, 杨海东   

  1. 合肥工业大学机械与汽车工程学院 安徽合肥 230009
  • 收稿日期:2003-01-11 修回日期:2003-04-30 出版日期:2004-06-30 发布日期:2004-06-30
  • 作者简介:谢峰(1963-),男,安徽淮南人,副教授,硕士;刘正士(1947-),男,安徽合肥人,教授,博导.
  • 基金资助:
    安徽省自然科学基金资助项目(01044107)

The Numerical Simulation of Friction Status on the Rake Face and Flank Face of Cutting Tools

XIE Feng, LIU Zheng-shi, YANG Hai-dong   

  1. School of Mechanical and Automobile Engineering, Hefei University of Technology, Hefei 230009, china
  • Received:2003-01-11 Revised:2003-04-30 Online:2004-06-30 Published:2004-06-30

PDF

145

被引次数

38

摘要： 采用数值模拟技术,成功地模拟出了自由直角切削中刀具前、后刀面的摩擦状况,并模拟出切屑形成及计算出刀-屑摩擦面上接触对各节点的等效应力值;同时对有限元建模及计算过程进行了深入的阐述.通过剪切角的仿真计算结果和用快速落刀实验得到的实验数据的比较证实了该方法的可行性.

关键词: 金属切削, 有限元法, 刀具前、后刀面摩擦, 数值模拟

Abstract: Based on the analysis of friction between the rake face of metal-cutting tool and the chip as well as between the flank face of metal-cutting tool and the machined surface, the friction process and the chip forming in the two-dimensional metal cutting process are both numerically simulated by means of FEM software. The equivalent stress between the contacting nodes on the friction face of the chip-cutting tool is calculated. The modeling by FEM method and the calculating process are also described. Through the comparison between the calculating results of the simulation of the shearing angle and the experiment data obtained by the rapid tool-dropped method, the feasibility of this method is confirmed. This method is new and unique. Its application will be helpful to the theoretical study of metal cutting and the design of the cutting tools.

Key words: numerical simulation, finite element method, metal cutting, friction in the rake and flank face of metal cutting

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