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Licht A G
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Publication of FR542268ApublicationCriticalpatent/FR542268A/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
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
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FR542268D1920-10-221921-10-12Procédé et dispositif pour la fabrication de fils étirés en métal à point de fusion élevé
ExpiredFR542268A
(fr)
Procédé et appareil pour transformer la structure cristalline de fils métalliquesétirés formés de métaux à point de fusion très élevé tels que le tungstène
Procédé et dispositif pour l'amenée des fils métalliques transversaux dans les machines à fabriquer les treillis formés de fils métalliques longitudinaux et transversaux soudés entre eux aux points de croisement