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
B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
B21C37/12—Making tubes or metal hoses with helically arranged seams
Tête de dépose d'une machine d'impression tridimensionnelle configurée pour déposer plusieurs fils simultanément et machine d'impression tridimensionnelle comportant ladite tête de dépose
Procede de fabrication d'un ressort helicoidal a spires plates, un ressort helicoidal obtenu par la mise en oeuvre de ce procede, ainsi qu'un ensemble de direction comportant un tel ressort
Procédé pour la fabrication d'un élément servant à transmettre la chaleur, élément fabriqué selon ce procédé, et dispositif pour la mise en oeuvre de celui-ci.