FEM Simulation of Tool Wear in Drilling
Article dans une revue avec comité de lecture
The objective of this study is to simulate tool wear in drilling of nickel-based alloys, in particular Inconel 718. When machining these kind of materials, the impact of the thermal and mechanical phenomena generated by tool wear on the surface integrity is of prime concern. For this reason, it important to study the influence of tool wear on tool life, on final part quality and on cutting force and power consumption. Tool wear is caused by several phenomena (adhesion, abrasion, erosion, diffusion, corrosion, fracture etc.) depending on selected cutting parameters (cutting velocity, feed rate, etc.). In some cases these wear mechanisms can be described by analytical models which are function of physical quantities involved in process (temperature, pressure and sliding velocity along the cutting surface). Usually, commercial FEM software allows to implement these tool wear models but without tool geometry update. To overcoming this limitation, a suitable subroutine considering tool geometry update was developed and implemented in SFTC DEFORM-3D FEA software to simulate tool wear in drilling of Inconel 718. A good agreement was obtained between the predicted and measured tool wear data.
Showing items related by title, author, creator and subject.
Communication avec acteOUTEIRO, José (ENISE-CETIM, 2012)The surface integrity plays a very important rule in this functional performance, being dependent of a large number of machining parameters. The major concern of the industry is to know which combination of machining ...
Article dans une revue avec comité de lectureNOBRE, Joao Paulo; STIFFEL, J.-H.; NAU, A.; OUTEIRO, José; BATISTA, Antonio; VAN PAEPEGEM, W.; SCHOLTES, B. (Elsevier, 2013)Residual strains induced by drilling of glass-fibre reinforced polymers (GFRP) were determined using a hybrid experimental-numerical methodology. Experimentally, a set of GFRP specimens were drilled under well-defined ...
Communication avec acteGIRAUD, 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 ...
On the selection of Johnson-Cook constitutive model parameters for Ti-6Al-4V using three types of numerical models of orthogonal cutting Communication avec acteZHANG, Yancheng; OUTEIRO, José; MABROUKI, Tarek (Elsevier, 2015)Johnson-Cook constitutive model is still the most used model in metal cutting simulation, although several drawbacks reported in the literature. A high number of Johnson-Cook model parameters can be found in the literature ...
Communication avec acteNASR, Mohamed N.A.; OUTEIRO, José (Elsevier, 2015)Improving the corrosion resistance of magnesium alloys has gained special focus in recent years, and cryogenic machining has been one of the successfully used techniques. The current study presents a sensitivity analysis ...