Author(s)

L. Carrino, G. Giuliano, and G. Napolitano

Abstract

Finite element simulation of orthogonal metal cutting L.Carrino, G.Giuliano & G.Napolitano Department of Industrial Engineering, University of Cassino, Italy. Abstract In the present work, the development of a coupled thermo-mechanical finite element model of plane-strain orthogonal metal cutting with continuous chip formation is presented. Friction along the tool-chip interface plays a very important role in the metal cutting process. Modelling of interfacial friction was based on constant shear friction. Whenever the tool come in contact with the workpiece, it is necessary to impose non-penetration constraints. In order to accurately simulate the metal cutting process a flow stress model based on process dependent parameters such as strain, strain-rate and temperature was used. To simulate separation of the chip from the work-material, a geometrical chip-separation criterion, based on the distance between the tool tip and the nodal point located immediately ahead, is implemented into the cod

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