Study on Chip Morphology and Adiabatic Shear in High Speed Cutting of Alloy Steels with Different Hardness

摘要：

The chip morphology and the formation and development of the adiabatic shear band within the serrated chips formed in high speed cutting of 30CrNi3MoV steel with two tempering hardness were observed and analyzed using optical microscope and SEM. The investigation shows that as the adiabatic shear phenomenon occurs and develops, the chip morphology changes as follows: ribbon chip→serrated chip with deformed band→serrated chip with transformed band→fractured chip. The cutting speed and tempering hardness is the two main factors affecting adiabatic shear, in the case of lower cutting speed the formation and development of adiabatic shear band are more sensitive to tempered hardness increase. The deformed shear bands are constituted by large deformed microstructure, while the formation of the transformed shear bands has experienced the large plastic deformation and grain refinement.

关键词： High Speed Cutting Chip Morphology Adiabatic Shear

作者: Chunzheng Duan Honghua Li Minjie Wang Yujun Cai

作者单位: School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China School of Mechanical Engineering, Tianjin University, Tianjin, 300072 China Tianjin Auto Mould Co.,

会议类型: 国际会议

会议名称: 2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)

会议地点: 洛阳

会议语种:英文

页码: 875-879

在线出版日期: 2010-09-04（万方平台首次上网日期，不代表论文的发表时间）