Simulation of upsetting process using kinematic schemes of metal flow

Abstract

Abstract The problems of simulation the on the basis of kinematic schemes of metal flow, which is observed in the processes of forging and stamping workpieces with flat areas, are considered. Presented traditional kinematic schemes of metal flow: normal and radial. To solve these problems, a modernized program complex EQUI was developed, which is used for computer simulation of metal flow in the workpiece plane. It is shown that for any parameters of upsetting process is a real «intermediate» kinematic scheme of metal flow, which consists of areas of the flow normal to the contour and areas of radial flow. The results of a virtual experiment were obtained using the program complex DEFORM, which has proven well in solving plastic forming problems. For computer simulation of the spatial diagram of contact stresses and the dividing line of metal flow is selected known software COMPAS. The horizontal projection of the solid model allows you to get an image of the dividing line of metal flow. Comparison of results, obtained in the COMPAS and EQUI, shows good agreement.