Analysis of the Thermal Deformation in CNC Lathe Machine

Abstract

In CNC lathe machine, the relative distance between the workpiece and the cutting tool is changed due to its thermal deformation. In this study, the main cause of the thermal deformation of the lathe machine is investigated with CAE analysis. From experimental result, the conducted heat from the hydraulic unit is highly influential to the change in the relative distance between the workpiece and the tool. Therefore, CAE analysis of thermal deformation by the hydraulic unit as heat source is carried out. From analyzed result, it is confirmed that the main cause of the change in relative distance between the workpiece and the cutting tool is the thermal deformation of the bed.