Computation on new deformation routes of tube channel pressing considering back pressure and friction effects

Three deformation routes for recently invented severe plastic deformation (SPD) method named tube channel pressing (TCP) have been introduced in this paper. The effects of routes, back pressure and friction have been investigated on deformation behavior of commercially pure (CP) aluminum tubes. Utilizing finite element analysis provides a broader understanding of these effects through different deformation routes. Due to the large values of strains accumulated in TCP, modified Estrin–Tóth–Molinari–Brechet (METMB) constitutive model has been employed in finite element analysis program to consider a realistic flow stress of the material in TCP. Employing experimental procedures confirms the accuracy of the analysis.

► Three deformation routes are introduced for TCP.
► Route R results in more strain accumulation on the tube.
► In the absence of back pressure, utilizing route I leads to a thickness reduction.
► Applying back pressure and friction lead to more strain accumulation.