Finite element modeling for prediction the effect of nose radius on cutting forces for titanium (Ti-6Al-4V) alloy

Abstract

This paper presents a study the effect of nose radius (Rz-mm) on the cutting forces during the machining process in a face milling operation for titanium (Ti-6Al-4V) alloy. To improve the prediction of the effect of nose radius (Rz-mm) on cutting force components so the cutting tests were performed with various nose radiuses (Rz-mm) while the depth of cut (d-mm), feed rate (f-mm/tooth) and cutting speed (vc-m/ min) were remained constant. The main cutting force (Fc) and feed cutting force (Ft) were measured by using the ABAQUS/EXPLICIT software simulation through the development a two-dimensional orthogonal cutting process of finite-element modeling. The results led to the conclusion that the nose radius (Rz-mm) has affected directly on the cutting force components. An increase in the nose radius (Rz-mm) led to more convergence in terms of behavior between the main cutting force (Fc) and feed cutting force (Ft) and its direct effect on the quality and quantity of product. © 2012 Kavala Institute of Technology.