In-process prediction system of workpiece thermal deformation during cylindrical plunge grinding

Abstract

Thermal deformation of workpiece due to grinding heat can make it difficult to meet the requirement of dimensional accuracy. We developed calculation method of workpiece thermal deformation by using the measured grinding force with strain gauge fixed on the center pressor. But it is not easy to measure the grinding force in practical applications. So in this study, an in-process prediction system of workpiece thermal deformation during cylindrical plunge grinding is newly developed. In the new system, temperature distribution in the workpiece is calculated based on the grinding efficiency and workpiece surface temperature which are measured during grinding easily, and the thermal deformation of workpiece is predicted.