Lateral Compression Process of Bimetallic Rods between Flat and V-shaped Dies: Experimental Analysis and Numerical Simulation
Subject Areas :Mahtab Safaee 1 , Heshmatollah Haghighat 2
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Keywords: Lateral Compression, Bimetallic Rod, Forming Force, Experiment, FE Simulation,
Abstract :
This study deals with the experimental and numerical investigation of the lateral compression process of bimetallic rods between flat and V-shaped dies. The bimetallic rods are long and have a round cross-section and are made of a combination of 1050 series aluminum metal as a shell and Cu-ETP R250 copper metal as a core. To determine the stress behavior in terms of the strain of these two materials, tensile test samples were made with standard dimensions, and by performing a simple tensile test, the true stress curve was drawn in terms of the true strain. To make bimetallic rods, aluminum rods and copper tubes with equal lengths were made separately. Then, the copper tube is heated in oil, and the aluminum rod is assembled inside the copper tube by applying force. The bimetallic rod is placed horizontally on the lower V-shaped die, which is fixed, and is subjected to plastic deformation by the upper flat die, which is connected to the moving part of the press machine at ambient temperature by applying compressive force. The lateral compression process was simulated by the finite element method using ABAQUS software. The geometric dimensions of the deformed bimetallic rod cross-section and the experimental forming force have been compared with the FE simulation results. The comparisons showed good agreement between the experimental and FE simulation results.
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