نتایج جستجو برای: springback

تعداد نتایج: 490  

2010
Joshua J. Jones Laine Mears John T. Roth

Present research involving ElectricallyAssisted Manufacturing (EAM) has shown the advantageous effects that an applied current flux provides on the mechanical properties with respect to part formation. Overall general results using this process include the reduction of the flow stress during forming, increased achievable deformation, and a decrease or elimination of springback. Specifically tar...

2006
Crina AXINTE

Geometrical inaccuracy of sheet metal parts due to springback are the reason for considerable efforts in the tool and process development. Numerous studies have been carried out in order to find the optimum process parameters and tool geometry so that the resulted parts to be within tolerances. In the present paper, the finite element method coupled to the neural network method are used to get ...

2013
M. R. Jamli A. K. Ariffin D. A. Wahab

In achieving accurate results, current nonlinear elastic recovery applications of finite element (FE) analysis have become more complicated for sheet metal springback prediction. In this paper, an artificial neural network (ANN) was used to mimic the nonlinear elastic recovery and provides a generalized solution in the FE analysis. The nonlinear elastic recovery was processed through back-propa...

Journal: :Materia-rio De Janeiro 2023

Springback is the reverse elastic deformation produced by unloading process, which a common phenomenon in sheet metal stamping and forming process affects final accuracy of part. Aiming at problem springback error multi-point hyperbolic component for ships, was studied combining theoretical analysis, numerical simulation test. The mechanical property parameters stress-strain curves were obtaine...

Journal: :Lecture Notes in Computer Science 2022

Bi-layer metallic tube (BMT) plays an extremely crucial role in engineering applications, with rotary draw bending (RDB) the high-precision processing can be achieved, however, product will further springback. Due to complex structure of BMT and high cost dataset acquisition, existing methods based on mechanism research machine learning cannot meet requirements springback prediction. Based prel...

Journal: :Transactions of Japan Society of Spring Engineers 1973

This study provides an approach to predict the springback phenomenon during post-solidification cooling in a functionally graded hybrid composite cylindrical shell with a transverse isotropic structure. Here, the material properties are given with a general parabolic power-law function. During the theoretical analysis, an appropriate transformation is introduced in the equilibrium equation, whi...

Journal: :Journal of Advanced Engineering and Computation 2022

Springback prediction is one of the most challenging in finite element analysis for sheet metal forming processes. The demand requests development a kinematic hardening model and parameter identification. This study presents schematic strategy to identify parameters Chaboche’s based on differential evolution optimization method. To this goal, several tension-compression (TC) tests were conducte...

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