Rearch On High-speed Milling NOMEX Paper-based Honeycomb Material With Interlocked Cutter

NOMEX paper-based honeycomb material has the characteristics of the non-homogeneous, anisotropic. A large number of tear, collapse pressure, burr, core grid distortion and other issues appear in processing. The high-speed machining and the use of cellular combination cutter improve the cutting performance of the cellular material in a certain extent. As more and more paper honeycomb material is applied to aerospace and defense, construction, packaging and other industries, the high-speed milling technology in NOMEX paper honeycomb materials is more and more in people’s attention. In this paper, because of the material and the structural, taken into account the complexity of the milling process of the honeycomb, the analysis method from microscopic, transient, macroscopic has been selected. In this paper, the study on the cutting force in the processing is taken by finite element simulation, mathematical analysis, testing.The processing is simulated by the finite element simulation software for prediction of cutting force. On the basis of summing up the theory of finite element simulation dimensional finite element simulation model was built, which is of the NOMEX paper honeycomb material milling processing. And based on the material constitutive behavior and fracture mechanics, parameter setting is adjusted and optimized; According to the simulation results, the trend of cutting force under different cutting parameters were analyzed and compared with experimental results.The verification results show that the simulation has been a good fitting accuracy. Finite element simulation for the study of processing parameters on the cutting forces influence provides the effective method.Based on theory and mechanics of composite materials, the impact of mechanical theory, the analytical methods is used for modeling of milling force. The structure of porous solids and the properties of composite micromechanics have been studied on. Through the mechanism of high-speed milling, three-dimensional cutting force modeling methods is studied on. The instantaneous and undeformed thickness of the formula is determined. According to the characteristics of the orthogonal cutting, cutting force model is been established, and then the instantaneous cutting force of the cutter as a whole is launched. On this basis, the analytical model of cutting force is made. And the model of the relationship between the cutting force coefficients and cutting parameters is made. And through the cutting forces coefficient, cutting forces is predicted in the feeding cycle of per tooth. The predicted and experimental results are compared to verify and analysis the usefulness and accuracy of the model. By comparison with the experimental, analytical model is more accurate forecast of the average cutting force values, the numerical simulation of the cutting force of the milling process is made.The empirical model of the milling force has been established by experimental methods. Using the experimental method of optimal design, comparative experiments of milling and grinding are made. The orthogonal rotation combination of design and quadratic regression analysis principle is used, and the empirical model of cutting force in high-speed milling and grinding of NOMEX paper honeycomb material is established; the advantages and disadvantages are compared between the milling and grinding NOMEX paper honeycomb material. The tool wear and machined surface quality is studied on. The impact of cutting parameters on cutting force and surface quality, and provides a theoretical basis for the optimization of cutting parameters.This article from the study of cutting force provides a theoretical basis and experimental reference to optimize processing parameters, improve retention, optimize tool design, and improve the surface quality.