1/00 | Preparing metal stock |
1/02 | Preparing metal stock 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 C21D 7/00, C22F 1/00) |
1/04 | Preparing metal stock Shaping in the rough solely by forging or pressing |
1/06 | Preparing metal stock Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations |
3/00 | Lubricating during forging or pressing (lubricating in general F16N) |
5/00 | Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor |
5/02 | Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor Die forging; Trimming by making use of special dies |
5/04 | Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor by directly applied fluid pressure or explosive action |
5/06 | Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor for performing particular operations |
5/08 | Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor for performing particular operations Upsetting |
5/10 | Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor for performing particular operations Piercing billets (in combination with extrusion B21C 23/00) |
5/12 | Methods for forging, hammering, or pressing (for working sheet metal or metal tubes, rods, or profiles B21D; for working wire B21F); Special equipment or accessories therefor for performing particular operations Forming profiles on internal or external surfaces (making screw-thread by forging, pressing, or hammering B21K) |
7/00 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) |
7/02 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) Special design or construction |
7/04 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) Special design or construction Power hammers |
7/06 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) Special design or construction Drop hammers |
7/08 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) Special design or construction Drop hammers with rigidly-guided hammer |
7/10 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) Special design or construction with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers |
7/12 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) Special design or construction with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers the lever being a spring, i.e. spring hammers |
7/14 | Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features section H) Special design or construction Forging machines working with several hammers |