B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
B21C3/02—Dies; Selection of material therefor; Cleaning thereof
B21C3/08—Dies; Selection of material therefor; Cleaning thereof with section defined by rollers, balls, or the like
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products
(AREA)
Procede de laminage oblique d'ebauche de tube acier ou analogues a parois d'epaisseur moyenne ou mince, et cage de laminoir pour sa mise en oeuvre