MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL

Description

Class B21 covers mechanical metal-working processes that shape or deform metal without significant material removal, including punching, stamping, bending, drawing, and forging operations. It encompasses machinery, tools, and methods used in cold and hot forming of metals, as well as related processes like shearing and blanking. This class excludes metal cutting and machining operations (covered in B23), welding (B23K), and non-mechanical metal treatment such as casting or heat treatment without forming.

Related Keywords

making or repairing LINK(S) of chainsMACHINE(S) toolsmachining operations on METAL(S), or mechanical treatment of METAL(S) (working METAL(S))making METAL(S) articlesROLLING metalWORKING any substance by process applicable to metalWORKING metal

9 direct subcodes

Child Classifications

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B21B ROLLING OF 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
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21F WORKING OR PROCESSING OF METAL WIRE
B21G MAKING NEEDLES, PINS OR NAILS OF METAL
B21H MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
B21J FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
B21K MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
B21L MAKING METAL CHAINS