Parameter identification of 42CrMo4 steel hot forging plastic flow behaviour using industrial upsetting presses and finite element simulations
Article dans une revue avec comité de lecture
An experimental-numerical methodology was proposed for the parameter identification of constitutive laws, when applied to hot forging. Industrial presses were directly used to generate the reference experiments for identification. The strain and temperature heterogeneity that appears during on-press compression experiments was taken into account by an FE-based inverse method. Specific experiments were designed for the identification of the heat transfer and friction coefficients. A testing tool was designed and instrumented with displacement sensors and a force cell. This was then used on a hydraulic press and a screw press in order to cover a large range of strain rates. The identified parameter set was validated with respect to specialized plastometers, and a semi industrial validation forging process. A reasonable accuracy was observed, particularly in realistic forging conditions
Showing items related by title, author, creator and subject.
Article dans une revue avec comité de lectureVENET, Gabriel; BALAN, Tudor; BAUDOUIN, Cyrille; BIGOT, Régis (Springer Verlag, 2018)Large strain hardening is the main material description ingredient for cold bulk forming process simulations. Hardening identification of large strains is a trade-off between cost, standardization and the ability to represent ...
Strain-path dependent hardening models with rigorously identical predictions under monotonic loading Article dans une revue avec comité de lectureYANG, Yanfeng; VINCZE, Gabriela; BAUDOUIN, Cyrille; CHALAL, Hocine; BALAN, Tudor (Elsevier, 2021)Accurate sheet metal simulation often requires advanced strain-path dependent material models, in order to predict the material response under complex loading conditions, including monotonic, reverse and orthogonal paths. ...
Communication avec acteYANG, Yanfeng; BAUDOUIN, Cyrille; BALAN, Tudor (IOP Publishing, 2018)Abrupt strain path changes without elastic unloading have been used in the literature to investigate the yield surface of sheet metals, both experimentally and theoretically. Such pioneering studies emphasized an apparent ...
Article dans une revue avec comité de lectureNICOLAS, Cyril; BAUDOUIN, Cyrille; LELEU, Stéphane; TEODORESCU, Mihaela; BIGOT, Régis (Springer Verlag, 2009)We present a mathematical method for identifying, separating and quantifying the 3D significant distortions. Measurement of a gas quenched C-ring type sample is performed by a Coordinate Measuring Machine (CMM). Quenching ...
Article dans une revue avec comité de lectureALLAM, Zakaria; BECKER, Eric; BAUDOUIN, Cyrille; BIGOT, Régis; KRUMPIPE, Pierre (Trans Tech Publications, 2013)One of the common problems in forging processes is the lack of key process parameters control, as well as their identification. Certain controlled parameters exist, such as temperature or stroke length, which are usually ...