The wire drawing process with axial ultrasonic vibration of the die

The influence of ultrasound on the behaviour of metals drawn through a conical converging die has been analysed by means of an energy method. The effect of the ultrasonic field is considered on the basis of experimental data and used to determine the drawing stress, the coefficient of friction, the viscosity coefficient, the drawing velocity effects, the area reduction and the die geometry. Results obtained by the given formulae used to calculate the drawing stress, are in good agreement with the experimental data. A detailed treatment is given for the drawing of aluminium through vibrated die.