Analysis of the temperature change on the tool and work piece during the ironing process

Abstract

The purpose of the paper is to investigate the temperature field in the contact between the tool and workpiece in the ironing process of strip, by application of integrated physical modeling and numerical simulation approach. The physical modeling of the ironing process was performed on originally developed strip ironing device, with installed the thermocouples at the position close to the contact surface of the die. Because the laboratory equipment allowed experiments only at lower deformation rates, there was a need for numerical estimations of the temperature fields at higher speeds. Moreover, there were experimental limits in measuring the contact pressures and temperature at high speeds which were eliminated by application of the FE simulations. For this purpose a series of the numerical experiments was conducted. The presented results show good agreement of experimental and numerical results, in the range of low velocities, with tendencies of the temperature increase with increase of speeds. The concluding remarks provide recommendations for successful forming.