1982 Volume 48 Issue 7 Pages 919-924
This paper presents the finite element analyses of temperature distribution and thermal deformation of the workpiece. Cylinder, engine-cylinder with cooling fin and connecting rod are studied. In the case as honing with frequent passage of weak heat source, good accuracy of numerical calculation is obtained by use of the staying model of a heat source distributed over honing surface. Heat quantity flowing into the workpiece is about 98% of the heat generated in honing. In the cylindrical workpiece the thermal deformation of radius at honing surface is well assumed by the product of temperature increase at outer surface, coefficient of thermal expansion and radius at honing surface in every time and every condition of honing. In the case of engine-cylinder with unequal thickness along the axis, the thermal deformation affects upon the dimensional and geometrical accuracy, and the effect on cylindricity is about 30% of the effect on radius in the present analyses. In the case of connecting rod with unequal thickness along the angular position, the thermal deformation affects only upon the dimensional accuracy, and the effect on roundness is 5% of the effect on radius.
