Modeling of three-dimensional cutting forces in micro-end-milling

作者：Li, Chengfeng^*; Lai, Xinmin; Li, Hongtao; Ni, Jun

来源：Journal of Micromechanics and Microengineering, 2007, 17(4): 671-678.

DOI：10.1088/0960-1317/17/4/001

• Chip thickness algorithms
• Cutting forces
• Three-dimensional cutting forces
• Trochoidal trajectory

A new nominal uncut chip thickness algorithm for micro-scale end-milling is proposed by considering the combination of an exact trochoidal trajectory of the tool tip and tool run-out, and then the actual uncut chip thickness may be obtained from a comparison between the current accumulative uncut chip thickness and the minimum chip thickness. Due to the intermittency of the chip formation, the milling process is divided into an elastic-plastic deformation regime and a chip formation regime dominated by ploughing forces and shearing forces, respectively, and three-dimensional cutting forces are modeled according to different regimes. Based on the modeling and simulation technologies introduced, a simulation system for the prediction of three-dimensional cutting forces of a micro-scale end-milling process is developed. The simulation results show a very satisfactory agreement with those data from milling experiments.

• 出版日期2007-4
• 单位上海交通大学