ZHANG M J, WANG X B, CHEN S, et al.Modeling and prediction of multi-axis machining milling force[J].Journal of Henan Polytechnic University(Natural Science) ,2023,42(4):111-115.

doi:10.16186/j.cnki.1673-9787.2021120077

Received:2021/12/22

Revised:2022/02/02

Published:2023/07/25

Modeling and prediction of multi-axis machining milling force

ZHANG Mingjun, WANG Xinbo, CHEN Shuo, GUO Qiang

School of Mechanical and Power Engineering，Henan Polytechnic University，Jiaozuo 454000，Henan，China

Abstract:A prediction method based on the actual motion path was proposed to improve the prediction precision of the milling force of the multi-axis CNC machining.Firstly，the instantaneous cutting thickness in the empirical milling force formula was calculated by the Levenberg-Marquardt algorithm to obtain the undeformed cutting thickness.Secondly，the undeformed chip thickness and cutting-edge motion sweep surface model in the multi-axis transformation were analyzed，then the prediction model of milling force of the multi-axis CNC machining process based on the undeformed chip thickness was established.Finally，the three-axis and five-axis experiments of the 2024 aluminum alloy workpieces using the carbide cylindrical end mill were implemented to collect milling force data.The results revealed a good agreement between the predicted values and the experimental values.

Key words:multi-axis CNC machining;actual undeformed cutting thickness;milling force model;instantaneous cutting thickness;cutting-edge motion sweep surface;prediction error

多轴加工铣削力建模与预测_张明军.pdf