抄録
This paper presents the experimental analyses of thermal deformation of the workpiece due to heat generated between the workpiece and honing stone in honing operation. Inner surface of the cylindrical workpiece is honed where super-invar pins are set. Thermal deformation at the inner surface is calculated from the thermal deformation at the outer surface of workpiece and the convex dimension of super-invar pin on the inner surface at room temperature. The results indicate that cylindrical workpiece shows nearly isothermal expansion. Inner diameter of the workpiece at room temperature becomes smaller as much as thermal deformation than the diameter at end of honing, however the honing heat does not significantly affect on the geometrical accuracy of the workpiece. Greater the expansion pressure of honing stone, the revolution of spindle and the over-run of honing stone, straightly greater the thermal deformation appears. When the flow rate of coolant is greater, the thermal deformation appears exponentially smaller and then becomes gradually a steady value. The thermal deformation of workpiece shows a tendency proportional to stock removal in honing, however it is observed that these values are scattered.
