Mechanism of the Tool Flank Wear Influenced by the Vibration Characteristics of the Toolholder

System in High Speed Milling

LIU Anmin¹  SHEN Hang ¹  KRUTH J P ²

(1. Institute of Modern Manufacturing Technology, Hunan Institute of Technology, Hengyang 421002;
2. Faculty of Engineering, Katholieke Universiteit Leuven, Leuven 3001, Belgium)

Abstract: Based on the analyses of the vibration characteristics of the spindle/tool-holder/tool system and the cutting processes, the mechanism of the tool flank wear influenced by the system’s mechanical vibration is studied. The experimental modal analysis method is used to obtain the system’s modal parameters. The vibration locus of the tool tip is analyzed and also the behavior of the change of the effective end-relief angle along the locus with the cutting time. We found out the relationship of the modal parameters and the tool flank wear. Cutting tests were done for the tool flank wear influenced by the modal parameters. Testing results prove that in high-speed milling hard materials the higher the value of the dynamic stiffness and the product of the modal damping and natural frequency, the less the tool flank wear influenced by the system’s vibration, and vice versa.

Key words: High-speed milling  Vibration characteristics  Flank wear mechanism

CLC No: TH1622

欧共体发展基金、湖南省科技厅科技创新基金(03SSY4055)和湖南省经委科技重点基金(湘经技术[2004]181号)资助项目. Received 20070511, received in revised form 20071115

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