Finite Element Modeling and Analysis of Workpiece Elastice Deflection Under Cutting Forces in Turning Operation

Abstract

One of the problems faced in turning processes is the elastic deformation of the workpiece due to the cutting forces resulting in the actual depth of cut being different from the desirable one. In this paper, an attempt has been made to describe a cutting mechanism suggesting that the above problem results in an over-dimensioned part. Consequently, the problem of determining the workpiece elastic deflection is addressed from two different points of view. The first one is based on solving the analytical equations of a cylindrical workpiece due to cutting forces. The second approach focuses on the evaluation of deflection in a cylindrical workpiece using Finite Element (FE) software ABAQUS. The reliability and verification of the analytical method and software model is demonstrated by comparisons with turning experiments. The accuracy and simplicity of the proposed models make it suitable to predict and/or complement experimental investigations.