| In this study, a plane-strain thermo-elasto-plastic finite element model has been developed and used to simulate orthogonal machining alumina/aluminium 6061 metal matrix composite using a tungsten carbide tool. Simulations were carried out employing temperature-dependent material physical properties. The model was used to investigate the effective and shear stresses on the alumina particles. The contact behavior between the alumina particles and cutting tool was investigated numerically by varying process parameters. Validation of the finite element model was performed through comparing the cutting forces generated during the machining process with the experimental results for a range of feeds. The trends in the cutting and feed forces, contact stress distributions along the interface and equivalent and shear stresses on the alumina particles during the cutting process were investigated. (Abstract shortened by UMI.)... |
