|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Development of a Hot Cutting Process for Functional Parts by Stress State Dependent Damage Modeling
||Christian Löbbe, Juri Martschin, Hosen Sulaiman, Detlef Putschkat, Andreas Jäger, A. Erman Tekkaya
|On-Site Speaker (Planned)
Trimming by forming is the method of choice for the production of complex functional components. With increasing strength, this method is no longer applicable due to the high tool load and risk of production stop. Hot cutting and quenching of boron-manganese grades is a solution to meet the part requirements out of geometry, mechanical properties and surface condition. This approach requires an immediate sequence of austenitization, hot cutting and quenching and has multiple thermal and mechanical adjustment screws. Hence, the design principles for the thermomechanical cutting process are revealed, which are obtained by a load path-dependent damage simulation. The basis for this is anisotropic fracture characterization at elevated temperatures by digital image correlation. Building on this, the process and cutting parameters are simulated by variation and optimal process execution is found. The method is validated on a component that has to satisfy a requirement collective of geometric and mechanical characteristics.
||Definite: At-meeting proceedings