...Amir Asgharzadeh; Siamak Serajzadeh Purpose – The purpose of this paper is to develop a mathematical solution to estimate the deformation pattern and required power in cold plate rolling using coupled stream function method and upper bound theorem. Design/methodology/approach – In the first...

... Stream function technique Upper bound theorem Finite element analysis Cold extrusion Mathematical modelling Extrusion process is considered as an important route to produce unsymmetrical and symmetrical profiles such as rods and billets while compressive stresses have made the process capable...