analytical and numerical investigation of significant parameters on strength of electromagnetically assembled products joints
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abstract
electromagnetic forming is a high energy rate forming process. in this process, an electromagnetic lorentz body force is used for deformation of products. in this article, electromagnetic forming process was simulated for assembly of parts as an innovative method. in this research work, the effect of important parameters of process such as discharge energy, radius and width of rectangular groove on the strength of assembled products were studied by using finite element technique and design of experiment. after introducing the governing equations, the output of these equations were applied in simulation as a pressure on work-piece. in this simulation, an axisymmetric model was used in analysis and johnson-cook theory was applied due to high strain rate to show the plastic behavior of materials. finally, the numerical results were compared with the experimental results reported by other researchers and found a good correlation between them. as a result, the bead depth increases with the increase of the discharge energy and more filling groove, increasing strength of joint. in addition, strength of joint increases, due to create partial shearing of the tube at the groove edge and interference stresses at the tube and mandrel interface.
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Journal title:
journal of modern processes in manufacturing and productionPublisher: islamic azad univesity, najafabad branch
ISSN
volume 2
issue 4 2013
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