FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES (rolling of metal B 21 B; making particular products by forging or pressing B 21 K; cladding or plating B 23 K; finishing surfaces by hammering B 23 P 9/04; compacting surfaces by blasting with particulate material B 24 C 1/10; general features of presses, presses for consolidating scrap
B 30 B; furnaces in general F 27)
1
/
00
Preparing metal stock
1
/
02
•
Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough (modifying the physical properties by deformation C 21 D 7/00, C 22 F 1/00)
1
/
04
•
Shaping in the rough solely by forging or pressing
1
/
06
•
Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
3
/
00
Lubricating during forging or pressing (lubricating in general F 16 N)
5
/
00
Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B 21 D; for working wire B 21 F); Special equipment or accessories therefor
5
/
02
•
Die forging; Trimming by making use of special dies
5
/
04
•
by directly applied fluid pressure or explosive action
5
/
06
•
for performing particular operations
5
/
08
•
•
Upsetting
5
/
10
•
•
Piercing billets (in combination with extrusion B 21 C 23/00)
5
/
12
•
•
Forming profiles on internal or external surfaces (making screw-thread by forging, pressing, or hammering B 21 K)
7
/
00
Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B 25 D; electrical features section H)
7
/
02
•
Special design or construction
7
/
04
•
•
Power hammers
7
/
06
•
•
Drop hammers
7
/
08
•
•
•
with rigidly-guided hammer
7
/
10
•
•
with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers
7
/
12
•
•
•
the lever being a spring, i.e. spring hammers
7
/
14
•
•
Forging machines working with several hammers
7
/
16
•
•
•
in rotary arrangements
7
/
18
•
•
Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction, e.g. for swaging
7
/
20
•
Drives for hammers; Transmission means therefor
7
/
22
•
•
for power hammers
7
/
24
•
•
•
operated by steam, air, or other gaseous pressure
7
/
26
•
•
•
•
operated by internal combustion
7
/
28
•
•
•
operated by hydraulic or liquid pressure
7
/
30
•
•
•
operated by electro-magnets
7
/
32
•
•
•
operated by rotary drive, e.g. electric motor
7
/
34
•
•
•
operating both the hammer and the anvil, so-called counter-tup
7
/
36
•
•
for drop hammers
7
/
38
•
•
•
driven by steam, air, or other gaseous pressure
7
/
40
•
•
•
driven by hydraulic or liquid pressure
7
/
42
•
•
•
operated by rotary drive, e.g. electric motors
7
/
44
•
•
•
•
equipped with belts, ropes, cables, chains
7
/
46
•
•
Control devices specially adapted to forging hammers, not restricted to one of the preceding subgroups
