The Effect of Flatness of Joint Faces upon the Static Stiffness of Machine Tool Joints

Abstract

This paper looks into the types of flatness errors produced in typical machining operations. The effect of these flatness errors on the pressure/deflection curves of the surfaces is reported. An empirical relation, based on the experimental results, between surface deflection and mean interface pressure is suggested. The effect of bonding joints is shown to eliminate plastic deformation of the surfaces and produces a joint having linear characteristics.