Optimization Research Of Comprehensive Parameters Based On High-speed Cutting Of Alloy Cast Iron

With the development of high-speed cutting machine tools, cutting tools and related equipments, high-speed cutting technology as an important part of the advanced manufacturing technology, has been more widely applied. In high-speed cutting process, tool wear has close relationship with cutting force and cutting temperature, and the value of the cutting force and temperature are directly affected by the selection of the comprehensive parameters, such as tool geometry angles and cutting parameters. So the research of comprehensive parameters is needed. In this paper, the optimal comprehensive parameters were obtained by the research, which the alloy cast iron was the study object, the tool geometry angles and cutting parameters were the parameters, and the cutting force and temperature was the optimal target. The optimal comprehensive parameters could provide a reference for the production and processing of enterprise.In this paper, the key technologies for high-speed cutting simulation were learnt by the research of high-speed cutting theory and research actuality. On this basis, the two-dimensional orthogonal finite element model of carbide cutting tools YG8high-speed cutting of alloy cast iron Cr15Mo was established by the large commercial finite element analysis software ABAQUS, and through simulation and result analysis, the effect rules of comprehensive parameters on the cutting force and temperature were obtained.In order to ensure the correctness of the finite element model, in this paper, the test of high-speed milling alloy cast iron were carried out, and the values of the cutting force were obtained in orthogonal experimental conditions. The reliability of the finite element model was prove by compared the test value with the simulation value of the cutting force, and it initially determined the parameters combination19was the optimal combination of carbide cutting tools high-speed cutting of alloy cast iron. Based on the results of finite element simulation, the comprehensive parameters had been optimized through using Taguchi robust design. The optimal parameter combinations (a total of two groups) based on robust design optimization were obtained by the variance analysis of orthogonal experiment and the comparison of the signal noise ratio. The non-inferior solutions (Pareto solutions) were obtained by comparing the two sets of parameter combinations with the combination19, and there are three sets of parameter combinations.The suitable finite element model for high-speed cutting of alloy cast iron was established by the study of this paper, and the value of the optimal comprehensive parameters, which affected the cutting force and temperature, were obtained by using Taguchi robust design method, and it provided a theoretical reference for the actual production and processing.