A. Farshidianfar, S. Abbasion, A. Rafsanjani, Ferdowsi University of Mashhad, mashhad, Iran
The present work is dedicated to the study of Aluminum Alloy blanking process. A methodology is proposed to predict the ductile fracture of Aluminum Alloy in this process. Attention is paid to the interaction between parameters influence on blanking process such as punch-die clearance, punch diameter, sheet metal thickness and contact with friction in order to predict the optimum punch–die clearance during sheet metal blanking processes. The Finite element simulation of blanking process obtained and the properties of the cut edge were examined. The explicit time integration method with failure criteria have been used to simulate the process. The comparative study between the numerical results and the experimental ones shows the good agreement.
Summary: Blanking is used widely in aircraft industry. It is a shearing operation, which involves elastic and plastic deformation and fracture. It is influenced by a number of parameters such as: material properties and thickness, punch-die clearance, tool wear, punch velocity, and part geometry. The Objective of the present work is to predict the ductile fracture of aluminum alloy for a given sheet geometry. FEM simulations for blanking processes have been carried out, and the results have been compared with experimental data.
