Influences of Cutting Speed and Material Constitutive Models on Chip Formation and their Effects on the Results of Ti6Al4V Orthogonal Cutting Simulation

摘要: The highly used Ti6Al4V alloy is a well know hard-to-machine material. modelling of orthogonal cutting process attract the interest many researchers as it often generates serrated chips. purpose this paper to show significant influence speed on chip formation during along with different material constitutive models. Finite element analyses for are conducted speeds and investigated well-known Johnson-Cook model, modified Johnson–Cook model known Hyperbolic Tangent (TANH) that emphasizes strain softening behavior consider temperature dependent hardening factor. A 2D Lagrangian finite adopted simulation results from simulations such calculated forces, morphologies analyzed compared experimental highlight differences. analysis shows that, in secondary deformation zone directly proportional speed.