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WELLMAN SEAVER ROLLING MILL CO
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WELLMAN SEAVER ROLLING MILL CO
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Filing date
Publication date
Application filed by WELLMAN SEAVER ROLLING MILL COfiledCriticalWELLMAN SEAVER ROLLING MILL CO
Application grantedgrantedCritical
Publication of FR732656ApublicationCriticalpatent/FR732656A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
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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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR732656D1931-03-171932-03-04Perfectionnements apportés à la fabrication de tubes métalliques et autres articles tubulaires
ExpiredFR732656A
(fr)