Experimental and numerical assessment of subsurface plastic deformation induced by OFHC copper machining
TypeArticles dans des revues avec comité de lecture
Strain distributions in the machined surface and subsurface of OFHC copper workpieces were determined experimentally and through numerical simulations. An experimental setup, comprising a double frame camera and a pulsed laser, was developed to measure the displacement fields using the digital image correlation (DIC) technique; strain distributions were then calculated. A numerical orthogonal cutting model was also developed and applied in order to predict such distributions. Comparison between simulated and measured results enabled an understanding of the fundamental mechanisms of plastic deformation of the machined surface of OFHC copper.
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DENGUIR, Lamice; OUTEIRO, José; FROMENTIN, Guillaume; VIGNAL, Vincent; BESNARD, Rémy (Elsevier, 2017)Due to the rising interest in predicting machined surface integrity and sustainability, various models for metal cutting simulation have been developed. However, their accuracy depends deeply on the physical description ...
Orthogonal cutting simulation of OFHC copper using a new constitutive model considering the state of stress and the microstructure effects DENGUIR, Lamice; OUTEIRO, José; FROMENTIN, Guillaume; VIGNAL, Vincent; BESNARD, Rémy (Elsevier, 2016)This work aims to develop an orthogonal cutting model for surface integrity prediction, which incorporates a new constitutive model of Oxygen Free High Conductivity (OFHC) copper. It accounts for the effects of the state ...
Friction Model for Tool/Work Material Contact Applied to Surface Integrity Prediction in Orthogonal Cutting Simulation DENGUIR, Lamice; OUTEIRO, José; RECH, Joël; FROMENTIN, Guillaume; VIGNAL, Vincent; BESNARD, Rémy (Elsevier, 2017)Tribological behavior at both tool/chip and tool/work material interfaces should be highly considered while simulating the machining process. In fact, it is no longer accurate to suppose one independent constant friction ...
Influence of cutting process mechanics on surface integrity and electrochemical behavior of OFHC copper DENGUIR, Lamice; OUTEIRO, José; FROMENTIN, Guillaume; VIGNAL, Vincent; BESNARD, Rémy (ELSEVIER, 2014)Superfinishing machining has a particular impact on cutting mechanics, surface integrity and local electrochemical behavior. In fact, material removal during this process induces geometrical, mechanical and micro-structural ...
DENGUIR, Lamice; OUTEIRO, José; VIGNAL, Vincent; FROMENTIN, Guillaume; BESNARD, Rémy (Elsevier, 2018)Machining has a particular impact on the surface integrity and on corrosion resistance of components. In fact, material removal induces geometrical, mechanical and micro-structural modifications in the machined surface and ...