Tribology of metal cutting: newly formed underside of chip
TypeArticles dans des revues avec comité de lecture
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 designed and used to conduct experimental cutting tests on pure metals under Oxygen-rich surrounding medium. It was observed that chip curl, sticking and sliding zones are intimately connected with Oxygen concentration. The main research contribution of this study however, is the assessment of friction coefficient as a function of the process parameters, rather than a constant numeric value, resulting from complex phenomena at the contact interface between the cutting tool and the underside of the newly formed chip.
Showing items related by title, author, creator and subject.
A New Methodology for Evaluation of Mechanical Properties of Materials at Very High Rates of Loading DOS SANTOS, Tiago; OUTEIRO, José; ROSSI, Rodrigo; ROSA, Pedro (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 ...
Optimization-based procedure for the determination of the constitutive model coefficients used in machining simulations CHENG, Wenyu; OUTEIRO, José; COSTES, Jean-Philippe; M’SAOUBI, Rachid; KARAOUNI, Habib; DIETRICH, Stefan; MARCON, Bertrand; ROSA, Pedro (Elsevier BV, 2019)This paper deals with the determination of the constitutive model coefficients used in machining simulations. An optimization-based procedure is developed and applied to constitutive model coefficients determination of ...
GIRAUD, Eliane; ROSSI, Frédéric; GERMAIN, Guénaël; OUTEIRO, José (Elsevier, 2013)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 ...
Process Mechanics and Surface Integrity Induced by Dry and Cryogenic Machining of AZ31B-O Magnesium Alloy OUTEIRO, 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 ...
LAZOGLU, Ismaïl; POULACHON, Gérard; RAMIREZ, Christophe; AKMAL, Mohammad; MARCON, Bertrand; ROSSI, Frédéric; OUTEIRO, José; KREBS, Michael (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 ...