THEORETICAL PREDICTION OF TOOL-CHIP CONTACT LENGTH IN ORTHOGONAL METAL MACHINING BY COMPUTER SIMULATION  

作　　者：Gu Lizhi Long Zeming Cao LiwenCollege of Mechanical Engineering, Jiamusi University, Jiamusi 154007, ChinaYuan Zhejun Harbin Institute of Technology 

出　　处：《Chinese Journal of Mechanical Engineering》2002年第3期233-237,共5页中国机械工程学报（英文版）

基　　金：This project is supported by Provincial Natural Science Foundation of Heilongjiang(No.A9809).

摘　　要：A method for determination of tool-chip contact length is theoreticallypresented in orthogonal metal machining. By using computer simulation and based on the analyses ofthe elastro-plastic deformation with lagrangian finite element method in the deformation zone, theaccumulated representative length of the low layer, the tool-chip contact length of the chipcontacting the tool rake are calculated, experimental studies are also carried out with 0.2 percentcarbon steel. It is shown that the tool-chip contact lengths obtained from computer simulation havea good agreement with those of measured values.A method for determination of tool-chip contact length is theoreticallypresented in orthogonal metal machining. By using computer simulation and based on the analyses ofthe elastro-plastic deformation with lagrangian finite element method in the deformation zone, theaccumulated representative length of the low layer, the tool-chip contact length of the chipcontacting the tool rake are calculated, experimental studies are also carried out with 0.2 percentcarbon steel. It is shown that the tool-chip contact lengths obtained from computer simulation havea good agreement with those of measured values.

关 键 词：Tool-chip contact length Computer simulation Finite element method Elastro-plastic deformation Representative length of an element 

分 类 号：TH164[机械工程—机械制造及自动化]