WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B21J　FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES (rolling of metal B21B; making particular products by forging or pressing B21K; cladding or plating B23K; finishing surfaces by hammering B23P 9/04; compacting surfaces by blasting with particulate material B24C 1/10; general features of presses, presses for consolidating scrap B30B; furnace in general F27)

B21J 1/00 Preparing metal stock {or similar ancillary operations prior, during or post forging, e.g. heating or cooling (pretreatment for rolling B21B 1/02, B21B 15/0035)}

B21J 1/003 ・{Selecting material}

B21J 1/006 ・・{Amorphous metal}

B21J 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 C21D 7/00, C22F 1/00)

B21J 1/025 ・・{affecting grain orientation}

B21J 1/04 ・Shaping in the rough solely by forging or pressing

B21J 1/06 ・Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations {(B21J 5/063 takes precedence)}

B21J 3/00 Lubricating during forging or pressing (lubricating in general F16N)

B21J 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

B21J 5/002 ・{Hybrid process, e.g. forging following casting}

B21J 5/004 ・{Thixotropic process, i.e. forging at semi-solid state}

B21J 5/006 ・{using ultrasonic waves}

B21J 5/008 ・{Incremental forging}

B21J 5/02 ・Die forging; Trimming by making use of special dies; {Punching during forging}

B21J 5/022 ・・{Open die forging}

B21J 5/025 ・・{Closed die forging}

B21J 5/027 ・・{Trimming}

B21J 5/04 ・by directly applied fluid pressure or explosive action

B21J 5/06 ・for performing particular operations

B21J 5/063 ・・{Friction heat forging (friction heat riveting B21J 15/027)}

B21J 5/066 ・・・{Flow drilling}

B21J 5/08 ・・Upsetting

B21J 5/10 ・・Piercing billets (in combination with extrusion B21C 23/00)

B21J 5/12 ・・Forming profiles on internal or external surfaces (making screw-thread by forging, pressing, or hammering B21K)

B21J 7/00 Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H)

B21J 7/02 ・Special design or construction

B21J 7/04 ・・Power hammers

B21J 7/06 ・・Drop hammers

B21J 7/08 ・・・with rigidly-guided hammer

B21J 7/10 ・・with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers

B21J 7/12 ・・・the lever being a spring, i.e. spring hammers

B21J 7/14 ・・Forging machines working with several hammers

B21J 7/145 ・・・{the hammers being driven by a rotating annular driving member}

B21J 7/16 ・・・in rotary arrangements

B21J 7/18 ・・Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction e.g. for swaging

B21J 7/20 ・Drives for hammers; Transmission means therefor

B21J 7/22 ・・for power hammers

B21J 7/24 ・・・operated by steam, air, or other gaseous pressure

B21J 7/26 ・・・・operated by internal combustion

B21J 7/28 ・・・operated by hydraulic or liquid pressure

B21J 7/30 ・・・operated by electro-magnets

B21J 7/32 ・・・operated by rotary drive, e.g. by electric motor

B21J 7/34 ・・・operating both the hammer and the anvil, so-called counter-tup

B21J 7/36 ・・for drop hammers

B21J 7/38 ・・・driven by steam, air, or other gaseous pressure

B21J 7/40 ・・・driven by hydraulic or liquid pressure

B21J 7/42 ・・・operated by rotary drive, e.g. electric motors

B21J 7/44 ・・・・equipped with belts, ropes, cables, chains

B21J 7/46 ・・Control devices specially adapted to forging hammers, not restricted to one of the preceding sub-groups

B21J 9/00 Forging presses

B21J 9/02 ・Special design or construction

B21J 9/022 ・・{multi-stage forging presses (handling devices B21K 27/00)}

B21J 9/025 ・・{with rolling or wobbling dies}

B21J 9/027 ・・{with punches moving along auxiliary lateral directions (B21J 13/025 takes precedence)}

B21J 9/04 ・・Piercing presses

B21J 9/06 ・・Swaging presses; Upsetting presses

B21J 9/08 ・・・equipped with devices for heating the work-piece (electric heating elements H05B)

B21J 9/10 ・Drives for forging presses

B21J 9/12 ・・operated by hydraulic or liquid pressure

B21J 9/14 ・・・in conjunction with electric power

B21J 9/16 ・・・in conjunction with steam or gas power

B21J 9/18 ・・operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars

B21J 9/20 ・・Control devices specially adapted to forging presses not restricted to one of the preceding sub-groups

B21J 11/00 Forging hammers combined with forging presses; Forging machines with provision for hammering and pressing

B21J 13/00 Details of machines for forging, pressing, or hammering

B21J 13/02 ・Dies or mountings therefor

B21J 13/025 ・・{Dies with parts moving along auxiliary lateral directions}

B21J 13/03 ・・Die mountings

B21J 13/04 ・Frames; Guides

B21J 13/06 ・Hammers tups; Anvils; Anvil blocks

B21J 13/08 ・Accessories for handling work or tools

B21J 13/085 ・・{handling of tools}

B21J 13/10 ・・Manipulators (in general B25J)

B21J 13/12 ・・・Turning means

B21J 13/14 ・・Ejecting devices

B21J 15/00 Riveting

B21J 15/02 ・Riveting procedures

B21J 15/022 ・・{Setting rivets by means of swaged-on locking collars, e.g. lockbolts}

B21J 15/025 ・・{Setting self-piercing rivets}

B21J 15/027 ・・{Setting rivets by friction heating}

B21J 15/04 ・・Riveting hollow rivets mechanically

B21J 15/041 ・・・{by pushing a drive-pin}

B21J 15/043 ・・・{by pulling a mandrel}

B21J 15/045 ・・・・{and swaging locking means, i.e. locking the broken off mandrel head to the hollow rivet}

B21J 15/046 ・・・{by edge-curling}

B21J 15/048 ・・・{Setting self-drilling hollow rivets}

B21J 15/06 ・・{Riveting hollow rivets by means of hydraulic, liquid, or gas pressure (portable riveters B21J 15/105)}

B21J 15/08 ・・riveting by applying heat {, e.g.} to the end parts of the rivets to enable heads to be formed {(B21J 15/027 takes precedence)}

B21J 15/10 ・Riveting machines (electric heating elements H05B)

B21J 15/105 ・・{Portable riveters (pliers for riveting B21J 15/386)}

B21J 15/12 ・・with tools or tool parts having a movement additional to the feed movement, e.g. spin {(B21J 15/027 takes precedence)}

B21J 15/14 ・・specially adapted for riveting specific articles, e.g. brake lining machines

B21J 15/142 ・・・{Aerospace structures}

B21J 15/145 ・・・{Turbines}

B21J 15/147 ・・・{Composite articles}

B21J 15/16 ・・Drives for riveting machines; Transmission means therefor

B21J 15/18 ・・・operated by air pressure or other gas pressure, e.g. explosion pressure

B21J 15/185 ・・・・{by explosion pressure}

B21J 15/20 ・・・operated by hydraulic or liquid pressure

B21J 15/205 ・・・・{Riveting tools having hand operated pumps for building up the hydraulic pressure}

B21J 15/22 ・・・operated by both hydraulic or liquid pressure and gas pressure

B21J 15/24 ・・・operated by electro-magnets

B21J 15/26 ・・・operated by rotary drive, e.g. by electric motor

B21J 15/28 ・・Control devices specially adapted to riveting machines not restricted to one of the preceding sub-groups

B21J 15/285 ・・・{for controlling the rivet upset cycle}

B21J 15/30 ・・Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters

B21J 15/32 ・・・Devices for inserting or holding rivets in position with or without feeding arrangements

B21J 15/323 ・・・・{using a carrier strip}

B21J 15/326 ・・・・{Broken-off mandrel collection}

B21J 15/34 ・・・・for installing {multiple-type} tubular rivets

B21J 15/36 ・・Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets

B21J 15/365 ・・・{Mandrels for expanding parts of hollow rivets}

B21J 15/38 ・Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting

B21J 15/383 ・・{Hand tools for riveting}

B21J 15/386 ・・{Pliers for riveting}

B21J 15/40 ・・for forming rivet heads

B21J 15/42 ・・Special clamping devices for workpieces to be riveted together, e.g. operating through the rivet holes

B21J 15/44 ・・Rivet hole positioners

B21J 15/46 ・・Positioners for rivets for making tube joints

B21J 15/48 ・・Devices for caulking rivets

B21J 15/50 ・・Removing or cutting devices for rivets

B21J 17/00 Forge furnaces (furnaces for heat treatment C21D 9/00; furnaces in general F27)

B21J 17/02 ・electrically heated (electric heating elements H05B)

B21J 19/00 Blacksmiths requisites not otherwise provided for

B21J 19/02 ・Hearths; Air supply arrangements specially adapted therefor

B21J 19/025 ・・{Tyre heaters}

B21J 19/04 ・Anvils; Associated items