Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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
B21C3/18—Making tools by operations not covered by a single other subclass; Repairing
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Mounting, Exchange, And Manufacturing Of Dies
(AREA)
Verfahren zur Herstellung von Spiralbohrern aus geringwertigem Stahl mit in einem Schlitz des Bohrerwerkstuecks eingeschweisster Schneidplatte aus hochwertigem Stahl