Host: The Institute of Systems, Control and Information Engineers
Name : 2022 International Symposium of Flexible Automation
Location : Hiyoshi Campus, Keio University, Yokohama, Japan
Date : July 03, 2022 - July 07, 2022
Pages 75-78
Tool life and heat-affected area in subsurface should be controlled with the cutting temperatures in terms of product quality. The cutting temperature depends on the tool material as well as the cutting conditions and the tool geometries. The thermal properties of the tool material, the major factor in control of the cutting temperatures, should be studied to employ the appropriate cutting tool. This paper discusses the effect of the thermal properties on the cutting temperatures in cutting simulations of drilling. In the cutting model, three-dimensional chip flow in drilling is interpreted as a piling up of the orthogonal cuttings in the planes containing the cutting velocities and the chip flow velocities, in which the chip flow direction is determined to minimize the cutting energy. Then, the cutting temperature distribution is simulated with the heat conductions, the thermal convections, and the heat generations in the discrete elements of the tool, the chip, and the workpiece. The heat generations on the shear plane and the rake face are estimated as the energy consumption associated with the stress distributions given by the cutting force simulation. To design tool materials, the cutting temperatures are analyzed for some cutting tools with virtual thermal properties, which are associated with the volume fraction of material components.
