Research on Ultrasonic Cutting Force Prediction Model Based on GA-SVM
Nomex honeycomb material is a difficult-to-machine material.Cutting force is one of the indicators for evaluating cutting processability.Choosing appropriate processing methods and processing parameters is very important to control the cutting force and improve processing quality.Through the three-dimensional finite element simulation of ultrasonic cutting of Nomex honeycomb materials and the analysis of previous ultrasonic cutting experiments on Nomex honeycomb materials,an orthogonal experiment was designed for the processing parameters that affect the cutting force,a cutting force prediction model for ultrasonic cutting based on support vector machine(SVM)was constructed,and a genetic algorithm(GA)optimization parameter method was proposed.The relative error between the final true value and the predicted value of the model is in the range of 0～3.55%,R2=0.996 6.By selecting four groups of machining parameters different from the orthogonal test table for verification,the results show that this method is effective and feasible,and has positive significance for selecting appropriate machining parameters and reducing cutting forces.
GA-SVMultrasonic cuttingfinite element simulationprediction model
万方数据
维普
