| IPC 7 English version |
| B23P-B23P02500 |
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| SECTION B – PERFORMING OPERATIONS; TRANSPORTING |
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| B 23 | MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR (punching, perforating, making articles by processing sheet metal, tubes, or profiles B21D; wire-working B21F; making pins, needles, or nails B21G; making chains B21L; grinding B24) |
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| B 23 P | OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q) |
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| Notes |
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| (1) | This subclass does not cover non-mechanical operations on non-metallic materials unless such operations are specially mentioned in this subclass. |
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| (2) | In this subclass, the following expressions are used with the meanings indicated: |
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| – | "combined operations" excludes the assembling of parts if it is an essential feature of the next metal-working operation, since it is not regarded as an operation per se; |
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| – | "working of metal" and equivalent expressions include non-mechanical treatment of metal so far as it is not provided for in any other class or subclass, for example, in C21D, C22C, C22F, C23. Thus, combinations of such non-mechanical treatment with other metal-working are classified in this subclass. |
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| (3) | Attention is drawn to the Notes following the title of class B23. |
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| Subclass Index |
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| MISCELLANEOUS METAL-WORKING PROCESSES |
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| Setting of diamonds |
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| Reconditioning; finishing |
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| Connecting or disconnecting |
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| Other processes |
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| Auxiliary treatments |
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| COMBINED PROCESSES; MULTI-PURPOSE MACHINES |
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| Reconditioning; finishing |
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| Other combined operations |
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| Auxiliary treatments |
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5/ | 00 | Setting gems or the like on metal parts, e.g. diamonds on tools |
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6/ | 00 | Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D 1/00, B21D 3/00; repairing defective or damaged objects by casting techniques B22D 19/10; procedures or apparatus covered by a single other subclass, see the relevant subclass) [3] |
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6/ | 02 | . | Pistons or cylinders [3] |
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6/ | 04 | . | Repairing fractures or cracked metal parts or products, e.g. castings [3] |
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9/ | 00 | Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings (treatment covered by a single other subclass, see the relevant subclass, e.g. B24C, C21D 7/00, C22F 1/00); Features of such surfaces not otherwise provided for, their treatment being unspecified |
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9/ | 02 | . | Treating or finishing by applying pressure, e.g. knurling (B23P 9/04 takes precedence) |
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9/ | 04 | . | Treating or finishing by hammering or applying repeated pressure |
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11/ | 00 | Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for (connecting sheet metal or metal tubes, rods or profiles B21D 39/00; riveting B21J; soldering, unsoldering, welding B23K; hand tools for connecting wire or strip B25B 25/00; connecting metal parts by adhesives F16B 11/00) [1,7] |
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11/ | 02 | . | by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits |
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13/ | 00 | Making metal objects by operations essentially involving machining but not covered by a single other subclass (making specific objects B23P 15/00) |
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13/ | 02 | . | in which only the machining operations are important |
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13/ | 04 | . | involving slicing of profiled material |
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15/ | 00 | Making specific metal objects by operations not covered by a single other subclass or a group in this subclass |
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| Note |
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| This group covers only the objects covered by its subgroups. |
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15/ | 02 | . | turbine or like blades from one piece |
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15/ | 04 | . | turbine or like blades from several pieces |
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15/ | 06 | . | piston rings from one piece |
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15/ | 08 | . | piston rings from several pieces |
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15/ | 10 | . | pistons |
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15/ | 12 | . | gratings |
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15/ | 14 | . | gear parts, e.g. gear wheels |
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15/ | 16 | . | plates with holes of very small diameter e.g. for spinning or burner nozzles |
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15/ | 18 | . | brake shoes |
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15/ | 20 | . | railroad requirements, e.g. buffers |
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15/ | 22 | . | cartridges or like shells |
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15/ | 24 | . | dies (B21C 3/18, B21C 25/10, B21D 37/20 take precedence) |
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15/ | 26 | . | heat exchangers |
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15/ | 28 | . | cutting tools (sawing tools B23D 63/00, B23D 65/00; files or rasps B23D 73/00) |
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15/ | 30 | . | . | lathes or like tools |
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15/ | 32 | . | . | twist-drills |
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15/ | 34 | . | . | milling cutters |
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15/ | 36 | . | . | . | for thread cutting |
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15/ | 38 | . | . | planing or slotting tools (B23P 15/30 takes precedence) |
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15/ | 40 | . | . | shearing tools |
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15/ | 42 | . | . | broaching tools |
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15/ | 44 | . | . | scraping or shaving tools |
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15/ | 46 | . | . | reaming tools |
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15/ | 48 | . | . | threading tools (milling cutters for thread-cutting B23P 15/36) |
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15/ | 50 | . | . | . | dies |
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15/ | 52 | . | . | . | taps |
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17/ | 00 | Metal-working operations, not covered by a single other subclass or another group in this subclass |
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17/ | 02 | . | Single metal-working processes; Machines or apparatus therefor |
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17/ | 04 | . | characterised by the nature of the material involved or the kind of product independently of its shape |
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17/ | 06 | . | . | Making steel wool or the like |
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19/ | 00 | Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes (hand tools in general B25) [3] |
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19/ | 02 | . | for connecting objects by press fit or for detaching same (B23P 19/10 takes precedence) [1,7] |
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19/ | 027 | . | . | using hydraulic or pneumatic means (B23P 19/033 takes precedence) [7] |
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19/ | 033 | . | . | using vibration [7] |
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19/ | 04 | . | for assembling or disassembling parts (B23P 19/10 takes precedence) [1,7] |
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19/ | 06 | . | . | Screw or nut setting or loosening machines |
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19/ | 08 | . | . | Machines for placing washers, circlips, or the like on bolts or other members |
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19/ | 10 | . | Aligning parts to be fitted together [7] |
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19/ | 12 | . | . | Alignment of parts for insertion into bores [7] |
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21/ | 00 | Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control |
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23/ | 00 | Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass (if the particular kinds of operation are not essential B23Q 37/00 to B23Q 41/00; features relating to operations covered by a single subclass, see the relevant subclass for the operation) |
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23/ | 02 | . | Machine tools for performing different machining operations (lathes, e.g. capstan lathes, B23B; combined horizontal boring and milling machines B23B 39/02) |
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23/ | 04 | . | for both machining and other metal-working operations |
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23/ | 06 | . | Metal-working plant comprising a number of associated machines or apparatus |
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25/ | 00 | Auxiliary treatment of workpieces, before or during machining operations, to facilitate the action of the tool or the attainment of a desired final condition of the work, e.g. relief of internal stress |
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