Numerical Simulation of Electrohydraulic Forming of Aluminium Alloy Tubes

Abstract

Electrohydraulic forming has the advantages in improving formability and deformation precision of the workpiece, so it is concerned and applied in the plastic deformation for high precision parts, which are made of sheet or tube and difficult to form by traditional methods. However, electrohydraulic forming is based on a coupled effect of gaseous, liquid, and solid media and materials, and its states cannot be identified by experiments alone. Therefore, this paper takes the local bulging deformation behaviour of 5052 aluminium alloy tubes as the research object, used FEM software ANSYS/LS-DYNA to establish the numerical simulation model, and studied the plastic deformation behaviour of tubes under the action of shockwave load during electrohydraulic forming.