|About this Abstract
||NUMISHEET 2021: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
||Implementation of Real Contact Areas into Sheet Metal Forming Simulations Using Digital Spotting Images
||Peter Essig, Mathias Liewald, Johan Hol, Chsrisitan Bolay, Christoph Kaminsky
|On-Site Speaker (Planned)
Increasing demands on quality of outer car panels and shortened product development processes fundamentally challenge automotive manufacturers. Development times are significantly influenced by the manufacturing process of dies, which again is determined by time-consuming manual grinding operations carried out during die tryout. Blue colour paste is used to visualize contact areas between die surfaces and blank to provide a spotting image for evaluating homogenized pressure distribution. Such pressure distribution crucially is affecting the tribology system during deep drawing and flange draw in because of the multi-scaled characteristic of friction effects. This paper presents an approach for implementing real contact areas into forming simulations based on digital spotting images of active surfaces. Such spotting images were produced using different drawing depths and subsequently extracted by image processing. Compared to current sheet metal forming simulation, the model in this study considers different spotting lev-els for enhanced friction modelling to increase simulation accuracy.
||Definite: At-meeting proceedings