Speakers
Description
Manufacturing problems resulting from lubricant supplier changes are relatively common in automotive press shops. Computer-aided processes and tool design detect a significant proportion of manufacturing noises before tools are physically produced. In modern forming codes, an enhanced Coulomb model is used to numerically model the friction phenomena associated with lubrication. In laboratory conditions, determining model parameters through physical measurement is challenging. As a result, it became necessary to design a device that could be utilized in industrial environments. In this study, we present the prediction of a manufacturing problem resulting from a change in the lubricant of an industrial sheet metal part. The measuring device has been developed based on the parameters of the friction model of the lubricant materials. The developed measuring device may be used to determine the pressure- and velocity-dependent friction model parameters. The measuring device can only measure a limited range of pressures and velocities, so the results are extended to wider range using a mathematical method. The results demonstrate the effect of lubricant material changes on the forming process using the AutoForm code.