Computer-aided Design and Preparation for Micro-nano-composite Ceramic Tool Materials

doi:10.3901/JME.2018.07.223

Abstract

Abstract: The objective here is to solve the blindness of semi-empirical method during the process of ceramic cutting tool material design. The material properties are predicted using finite element method with microstructure-level material model to interpret the quantitative relationship between the microstructure and material properties. This research can establish the fundamental theory for the ceramic cutting tool design. Theory analysis, numerical simulation and experiment are carried out in the present study. The microstructure modeling of micro-nano-composite ceramic cutting tool materials is established considering the characteristics of complexity and randomness based on Voronoi and randomness method. Combined with the representative volume element (RVE) of ceramic material microstructure and property tests, the simulations of property test processes are conducted to calculate the strength, toughness and hardness of material. Then, the microstructure models with various parameters are designed, and the material properties are predicted to determine the optimal microstructure parameters. The ceramic cutting tool materials are prepared with the optimal microstructure parameters for high speed machining of ultra-high strength steels. The proposed method is feasible because experimental results are found to have a good agreement with the design results. This research can offer a reference for the ceramic cutting tool design, and is beneficial for the development of cutting tool design theory and the improvement of the tool life.

Key words: computer-aided design, micro-nano-composite ceramic tool, microstructure, preparation

CLC Number:

TG135

WANG Dong, ZHAO Jun, CAO Yan, XUE Chao. Computer-aided Design and Preparation for Micro-nano-composite Ceramic Tool Materials[J]. Journal of Mechanical Engineering, 2018, 54(7): 223-232.

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