From Part Design To Part Production - Virtual Hot Forming Engineering Illustrated - Focus Material Modelling

Abstract

In a press hardening process, significant efforts are necessary to model material behavior and combinations of material in one part, patch work, and die spotting. In this paper, a focus will be put on accurate modeling of material and process, being able to complete the die and process design in a timely manner A new material model has been developed that allows measuring and modelling material behavior along measurable phase paths. The reward of precise material and process modelling is a realistic determination of the deviation of the formed shape from the nominal part shape, accurate quenching time determination, correct material properties and residual stresses at the end of the process, and significant time savings in the try-out period.