Title: Numerical modelling of 3D hard turning using arbitrary Lagrangian Eulerian finite element method
Authors: P.J. Arrazola, T. Ozel
Addresses: Mondragon University, Loramendi 4, Mondragon 20500, Spain. ' Department of Industrial and Systems Engineering, Rutgers University, Piscataway, NJ 08854-8018, USA
Abstract: In this paper, 3D Finite Element Method (FEM)-based numerical modelling of precision hard turning has been studied to investigate the effects of chamfered edge geometry on tool forces, temperatures and stresses in machining of AISI 52100 steel using low-grade Polycrystalline Cubic Boron Nitrite (PCBN) inserts. An Arbitrary Lagrangian Eulerian (ALE)-based numerical modelling is employed for 3D precision hard turning. The Johnson-Cook plasticity model is used to describe the work material behaviour. A detailed friction modelling at the tool-chip and tool-work interfaces is also carried. Work material flow around the chamfer geometry of the cutting edge is carefully modelled with adaptive meshing simulation capability. In process simulations, feed rate and cutting speed were kept constant and analysis was focused on forces, temperatures and tool stresses. Results revealed good agreements between FEM results and those reported in literature about experimental ones.
Keywords: cutting; hard turning; finite element method; modelling; arbitrary Lagrangian Eulerian FEM; chamfered edge geometry; tool forces, temperature; tool stresses; steel machining; PCBN inserts; plasticity model; feed rate; cutting speed.
International Journal of Machining and Machinability of Materials, 2008 Vol.4 No.1, pp.14 - 25
Published online: 24 Oct 2008 *Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article