In the deep drawing process, the initial blank has a simple shape but its perimeter shape becomes very complex after drawing. If the initial blank shape is designed in such a way that it is formed directly into the desired shape by the drawing process, this will lead to a reduction in the trimming process and a decrease in the drawing force and raw material. The present paper proposes a novel approach to the initial blank optimization in deep drawing by using an artificial neural network (ANN) to obtain the shape of the initial blank in one step. The finite element method (FEM) is employed for simulating the deep drawing process to provide training data for the ANN. The aim of the neural network is to predict the initial blank shape for the desired final shape. Results from sensitivity analysis and experimental tests were compared. The FEM results were verified through experiment.
The present paper deals with the initial blank design of bimetallic parts obtained by deep drawing process. Normally in deep drawing, the initial blank has a simple shape and after drawing, its perimeter shape will become very complex and has considerable influences on the forming results. If the initial blank shape is designed in such a way that is formed into the desired shape after the drawing process, not only it reduces the time of trimming process, but also decreases the drawing force and the raw material needed substantially. The present paper proposes a novel approach to initial blank optimization in multilayer deep drawing. The Finite Element Method (FEM) is employed for simulating multilayer plate deep drawing process to provide training data for Artificial Neural Network (ANN). The aim of the neural network is to predict the initial blank shape for the desired final shape. The FEM results were verified through experiment.
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