Vermicular graphite cast iron, which is widely used in the automotive industry because of outstanding strenght properties. But, there are many problem with regard to machinability of this material. In this study, optimum cutting parameters were studied in order to improve machinability of vermicular graphite cast iron. Experiment parameters which is appropriate for ISO 3685 was selected. Depend...

Observations are made regarding the influence of cutting speed and friction on cutting force by way of finite element modeling. Simulations are validated by comparison of cutting forces and chip morphologies for the Al6061-T6. Analysis of cutting forces over a wide range of cutting conditions suggests an important role of the secondary shear zone in the decrease of cutting force as a function o...

in this paper, exact solution for two-plane transverse vibration analysis of axial-loaded multi-step timoshenko rotor carrying concentrated masses is presented. each attached element is considered to have both translational and rotational inertia. forward and backward frequencies and corresponding modes are obtained using transfer matrix method (tmm). the effect of the angular velocity of spin,...

This study aims to find the optimized parameters for surveying milling process of S50C steel in a minimum quantity lubrication (MQL) environment using support vector machine-genetic algorithm (SVM-GA). Based on experimental matrix designed by Taguchi method, surface roughness and cutting force data were collected corresponding each experiment with changes input such as speed, tooth feed rate, a...

The concept of an effective orthogonal cutting edge in turning is considered. The orientation of this edge in the radial-longitudinal plane, as commonly modeled through an effective lead angle, is studied. The methods of effective lead angle prediction used in numerous previously developed force models are plagued with large errors over ranges of process inputs, in particular feed rate and dept...