Heat Transfer Mechanism of Minimum Quantity Lubrication Grinding

Heat Transfer Mechanism of Minimum Quantity Lubrication Grinding

Copyright: © 2020 |Pages: 26
DOI: 10.4018/978-1-7998-1546-4.ch004

Abstract

Grinding temperature rise at the grinding interface has a great bearing on workpiece surface quality and service life of grinding wheel. In order to study influence degree of temperature on workpiece and analyze heat transfer at the grinding interface, as thermal influence at the grinding interface is regarded as a moving heat source on workpiece surface, influence of heat source on heat transfer will be investigated in the gradual expansion form of heat source by point, line, and surface on the theoretical foundation in Chapter 3. The influences of heat quantity transferred to workpiece and energy proportionality coefficient will be studied according to convective heat transfer theory on workpiece surface so as to provide a theoretical foundation for heat transfer of grinding temperature field model in the finite element simulation software.
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4.1 Introduction

The grinding temperature field produced in the grinding process is a very complex process. The influence of grinding heat on the workpiece is a dynamic process (Chen & Wang, 2018). In order to study the law of grinding temperature field conveniently, it is necessary to establish a numerical analysis model of grinding temperature field. The grinding effect between the grinding wheel and the workpiece generates a lot of heat to the workpiece, so that the surface temperature of the workpiece will rise when the temperature reaches the critical value. It is also necessary to analyze the heat in grinding process continuously.

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