A method to predict the cutting force for end mills with variable-pitch and variable-helix angle

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Jin, G.^1 ; Li, H.^2 ; Li, Z.J.^1 ; Sun, G.X.^3

Tianjin Key Lab of High Speed Cutting and Precision Machining, Tianjin University of Technology and Education, Tianjin

300222, China^1

Tianjin Jinhang Institute of Technical Physical, Tianjin

300300, China^2

Tianjin BAOLAI Group, Tianjin

301809, China^3

关键词: Chatter stability;    Cutting forces;    Effective depth;    Machining error;    Maximum cutting force;    Milling process;    Piecewise-continuous;    Variable pitch;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062051/pdf
DOI  :  10.1088/1757-899X/392/6/062051

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Cutting force is the most fundamental, and essential for machining error control, chatter stability analysis and milling process planning. In this paper, a method to predict the cutting force for the milling with variable-pitch or variable-helix cutter is provided. The method can take into account the piecewise continuous regions of the cutting that is attributed to the helix angle and the pitch variations between two subsequent teeth along the length of the axis. The piecewise character related to cutting force is deeply analysed and the effective depth of cut which seriously influences the maximum cutting force is discussed as well as its expression. Finally, a series of cutting tests and simulations are carried out to validate the present method.