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
B21C3/12—Die holders; Rotating dies
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Spinning Methods And Devices For Manufacturing Artificial Fibers
(AREA)