Numerical Simulation for Ultrasonic Vibration Assisted Drilling of Al6061-T6

Abstract

In general, drilling of aeronautical materials is provoked with a few troubles. To improve this technique, a variety of strategies have been displayed by researchers. One of these techniques is ultrasonic Vibration assisted drilling, this approach ordinarily brings high-frequency and lowamplitude vibration toward the direction of drill feed during drilling, and can possibly reduce thrust forces and reduce exit burr height. In this paper, FE analysis of ultrasonic vibration assisted drilling for Al 6061-T6 with HSS tool is examine. Accordingly, a vibration horn drill-bit was design with the capacity to create longitudinal vibration. A desired resonance frequency is achieved, after modular analysis of horn drill-bit and then FE simulation were conducted. As a result, compared with the conventional drilling it was revealed that this kind of ultrasonic vibration assisted drilling significantly reduces cutting forces. Moreover, predicting exit burr height precisely is important for deciding the ideal vibration conditions for burr height reduction. In vibration assisted drilling of Al6061-T6, a novel analytical burr height model is there to predict the exit burr height. The burr height for UVAD is reduced by 36% as compared to conventional drilling.