CUT-THROUGH FORMED SECTION MILL Russian patent published in 1999 - IPC

FIELD: plastic working of metals, in particular, equipment for producing cold-reduced cut-through angled sections. SUBSTANCE: mill has cutting-through and forming duo stands with passes having cylindrical and conical members. Some passes are closed with flanges of lower rolls. Cutting-through stand and first forming stand positioned behind cutting-through stand have closed passes. At least one conical member of each forming stand has round cylindrical bore. Generatrices of conical members are inclined to roll axes at angles of 20, 40 and 45 deg, respectively. Such construction of mill allows formed sections with members inclined to horizontal plane, for instance 0.8-1.5 mm thick angled sections, to be produced. EFFECT: increased efficiency by reduced number of rolls used for manufacture of formed sections. 2 dwg, 1 ex