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Publication of FR897382ApublicationCriticalpatent/FR897382A/fr
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
B21C23/00—Extruding metal; Impact extrusion
B21C23/02—Making uncoated products
B21C23/03—Making uncoated products by both direct and backward extrusion
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Stackable Containers
(AREA)
Pressure Welding/Diffusion-Bonding
(AREA)
Shaping Metal By Deep-Drawing, Or The Like
(AREA)
FR897382D1942-10-091943-08-20Procédé et dispositif pour fabriquer des corps creux par refoulement à froid
ExpiredFR897382A
(fr)