On the optimization of the cutting conditions for an improved corrosion resistance of OFHC copper
TypeCommunications avec actes
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 sub-surface that alter the electrochemical behavior of the material, and so the aging process. In this study, oxygen free high conductivity copper (OFHC) has machined under orthogonal cutting conditions using uncoated cemented carbide tools. Then, the corrosion resistance in 0.1 M NaCl salt fog atmosphere of the machined samples is analyzed. Finally, the optimal cutting conditions, including the tool geometry, for an improved corrosion resistance are identified. Their influence on the surface integrity, and then their consequences on the surface aging response is discussed.
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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 ...
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 ...
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 ...
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 ...
Experimental and numerical assessment of subsurface plastic deformation induced by OFHC copper machining OUTEIRO, José; CAMPOCASSO, Sébastien; DENGUIR, Lamice; FROMENTIN, Guillaume; VIGNAL, Vincent; POULACHON, Gérard (Elsevier, 2015)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 ...