초정밀 Spring 진동 Lamination 미세타발용 고강도 펀치 형상설계

In this study, progressive process is determined to manufacture the fine blanking for the spring lamination used as the linear motor unit of a commercial mobile phone, and design parameters of a die shape having influence the forgeability of progressive die is analyzed. Finite element method (FEM) determine the influence of fine blanking punch parameters. And in order to predict the tendency of process parameters, results of FE-simulation have been trained using artificial neural network (ANN). From the results, optimal punch shape is determined.