TY JOUR TI Reverse extrusion of bar stock with active friction and end swell stretching KW reverse extrusion KW deformation force KW stretching KW combined stamping processes JO Science intensive technologies in mechanical engineering AU Larin, S.N. AU Pasynkov, A.A. AU Nuzhdin, G.A. PY 2020 IS 2020 PB Bryansk State Technical University