Constitutive Modelling of AZ31B-O Magnesium Alloy for Cryogenic Machining
Communication avec acte
Résumé
The success of a FE model for metal cutting process is strongly dependent on the accurate characterization of the workpiece material, under similar conditions as those found in metal cutting. In this paper, dynamic shear tests using a Gleeble machine have been performed on 4 mm thickness disks of AZ31B-O magnesium alloy, using a special designed tool. In order to include the effects of the cryogenic cooling in the material behavior, the specimens have been submitted to temperatures ranging from -25ºC to 400ºC. A Johnson-Cook constitutive model has then been identified in order to describe the flow stress in machining.
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Communication avec acteOUTEIRO, José; ROSSI, Frédéric; FROMENTIN, Guillaume; POULACHON, Gérard; GERMAIN, Guénaël; BATISTA, Antonio (Elsevier, 2013)The corrosion resistance of magnesium alloys depends mainly on its surface integrity. Previous experimental studies have shown that machining can induces small (nano-scale) grain size, compressive residual stresses and ...
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Article dans une revue avec comité de lectureITURBE, Ariane; GIRAUD, Eliane; HORMAETXE, Exabier; GARAY, Ainhara; GERMAIN, Guénaël; OSTOLAZA, Koldo; ARRAZOLA, Pedro José (Elsevier, 2019)Corrigendum to “Mechanical characterization and modelling of Inconel 718 material behavior for machining process assessment” [Mater. Sci. Eng. A 682 (2017) 441–453]
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