Investigation of Process Parameters in Production of Cylindrical Parts of Aluminum 5052 by Warm Hydroforming

Nowadays, using aluminum alloys in construction of transportation vehicles to lighten final product weight and reduce fuel consumption has increased. To increases the formability of aluminum alloys and due to formability problems of these alloys in room temperature using of warm forming process is necessary. One of the forming processes at elevated temperatures is warm hydrodynamic deep drawing assisted by radial pressure. In the paper, after investigating the effect of Geometric Parameters and temperature (isothermal and non-isothermal) on thickness distribution and punch force, the effect of different parameters (temperature, media pressure and forming speed) on the limit drawing ratio was investigated. The result show that in the non-isothermal conditions, with increase in temperature, the maximum thickness reduction remained unchanged but the punch force was decreased. Additionally, the limit drawing ratio was increased with increasing temperature in the non-isothermal conditions, media pressure and forming speed and with decreasing temperature in the isothermal conditions. In this study maximum LDR is 2.52, in non-isothermal warming condition and temperature of 250c.