Constitutive Modelling of AZ31B-O Magnesium Alloy for Cryogenic Machining
Communication avec acte
Author
GIRAUD, Eliane 
ROSSI, Frederic GERMAIN, Guénaël MARTINS DO OUTEIRO, Jose CarlosAbstract
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.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Communication avec acte;ROSSI, Frederic; FROMENTIN, Guillaume; GERMAIN, Guénaël; POULACHON, Gerard; MARTINS DO OUTEIRO, Jose Carlos (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 ...
-
Article dans une revue avec comité de lecture;POULACHON, Gerard; ; ; ; ROSSI, Frederic; MARTINS DO OUTEIRO, Jose Carlos; (Elsevier, 2017)
Ti-6Al-4V is commonly used especially in aerospace and biomedical industries. This alloy is known as a difficult-to-cut material. Due to its poor thermal properties, the heat generated during machining processes traps near ...
-
Article dans une revue avec comité de lecture;ROSSI, Frederic; POULACHON, Gerard; MARTINS DO OUTEIRO, Jose Carlos (Elsevier, 2016)
Surface integrity prediction of hard machining using PCBN cutting tools remains a major topic for many high value added applications. A Flamant–Boussinesq (FB) analytical model has initially been applied for surface integrity ...
-
A New Methodology for Evaluation of Mechanical Properties of Materials at Very High Rates of Loading Article dans une revue avec comité de lecture;MARTINS DO OUTEIRO, Jose Carlos; ; (ELSEVIER, 2017)
This paper focuses on the development of a straight forward and inexpensive testing machine, and methodology for the characterization of materials in working conditions similar to those found in metal cutting. Special ...
-
Article dans une revue avec comité de lecture; ; ; ;MARTINS DO OUTEIRO, Jose Carlos; (ELSEVIER, 2019)
This investigation provides comprehensive knowledge regarding metal cutting tribology with the purpose of re-examining the role of Oxygen in the process mechanics. Special purpose apparatus and tribological tools were ...