Modelling and prediction of tool-chip interface temperature in hard machining of H13 steel with PVD coated tools
by Jingjie Zhang; Zhanqiang Liu; Jin Du
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 17, No. 5, 2015

Abstract: Cutting tool temperature determines the tool life and workpiece machined surface integrity, which mainly refers to the tool-chip interface temperature at the secondary deformation zone. PVD coating on cutting tools can greatly reduce cutting temperature through changing the heat partition into tool rake face at the tool-chip interface. Therefore, the tool-chip interface temperature has a decisive role on the cutting tool temperature. This paper presents the tool-chip interface temperature based on mathematical model using moving heat source method. FEM was set up to simulate the cutting process and validate the mathematical model predictions. Results show that the tool-chip interface temperature of TiAlN coating is higher than that of TiN coating. For both coated tools, the tool-chip interface temperature increases with the cutting speed. Under the same cutting parameters, the cutting temperature increases with the distance from the tool tip along the tool-chip contact surface.

Online publication date: Wed, 25-Nov-2015

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