Shear deformation regularity of electrically-assisted stainless steel/carbon steel asynchronous rolling
In the process of bimetallic asynchronous rolling,shear deformation in the deformation zone is the key factor to enhance the bonding quality of the composite plate.The composite rolling process of stainless steel/carbon steel was simulated by finite element method,and the variation of each component of the composite surface strain over time was studied.In order to enhance the shear deformation of the composite surface,the combination of electrically-assisted rolling technology and asynchronous rolling technology was proposed.Orthogonal experiments were designed to explore the influence weights of initial thickness ratio,reduction rate,current density and asymmetric ratio on total shear strain of composite surface in the process of electrically-assisted asynchronous rolling.The results showed that the shear deformation near the neutral point of the composite surface was significantly enhanced by asynchronous rolling,and the total shear strain of the composite surface was significantly increased by increasing the reduction rate and decreasing the initial thickness ratio,followed by increasing the current density and decreasing the asymmetric ratio.
electrically-assisted rollingasymmetric ratioorthogonal experimentshear strainfinite element method
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