| IPC 7 English version |
| B23H-B23H01100 |
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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 H | WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL (processes for the electrolytic or electrophoretic production of coatings, electroforming, or apparatus therefor C25D; processes for the electrolytic removal of material from objects C25F; manufacturing printed circuits using precipitation techniques to apply the conductive material to form the desired conductive pattern H05K 3/18) [4] |
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| Note |
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| This subclass covers the working of metal described as "electroerosion". [4] |
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| Subclass Index |
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| ELECTRICAL DISCHARGE MACHINING |
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| ELECTROCHEMICAL MACHINING |
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| COMBINED MACHINING |
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| COMMON PROCESSES OR APPARATUS |
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| MACHINING PARTICULAR OBJECTS OR OBTAINING SPECIAL EFFECTS OR RESULTS |
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| AUXILIARY APPARATUS OR DETAILS |
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1/ | 00 | Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric [4] |
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1/ | 02 | . | Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges [4] |
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1/ | 04 | . | Electrodes specially adapted therefor or their manufacture (B23H 9/00 takes precedence) [4] |
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1/ | 06 | . | . | Electrode material [4] |
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1/ | 08 | . | Working media [4] |
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1/ | 10 | . | Supply or regeneration of working media [4] |
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3/ | 00 | Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte [4] |
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3/ | 02 | . | Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits [4] |
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3/ | 04 | . | Electrodes specially adapted therefor or their manufacture (B23H 9/00 takes precedence) [4] |
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3/ | 06 | . | . | Electrode material [4] |
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3/ | 08 | . | Working media [4] |
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3/ | 10 | . | Supply or regeneration of working media [4] |
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5/ | 00 | Combined machining [4] |
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5/ | 02 | . | Electrical discharge machining combined with electrochemical machining [4] |
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5/ | 04 | . | Electrical discharge machining combined with mechanical working [4] |
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5/ | 06 | . | Electrochemical machining combined with mechanical working, e.g. grinding or honing [4] |
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5/ | 08 | . | . | Electrolytic grinding [4] |
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5/ | 10 | . | Electrodes specially adapted therefor or their manufacture (B23H 1/04, B23H 3/04 take precedence) [4] |
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5/ | 12 | . | Working media [4] |
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5/ | 14 | . | Supply or regeneration of working media [4] |
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7/ | 00 | Processes or apparatus applicable to both electrical discharge machining and electrochemical machining [4] |
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7/ | 02 | . | Wire-cutting [4] |
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7/ | 04 | . | . | Apparatus for supplying current to working gap; Electric circuits specially adapted therefor [4] |
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7/ | 06 | . | . | Control of the travel curve of the relative movement between electrode and workpiece [4] |
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7/ | 08 | . | . | Wire electrodes [4] |
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7/ | 10 | . | . | . | Supporting, winding or electrical connection of wire-electrode [4] |
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7/ | 12 | . | Rotating-disc electrodes [4] |
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7/ | 14 | . | Electric circuits specially adapted therefor, e.g. power supply [4] |
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7/ | 16 | . | . | for preventing short circuits or other abnormal discharges [4] |
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7/ | 18 | . | . | for maintaining or controlling the desired spacing between electrode and workpiece [4] |
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7/ | 20 | . | . | for programme-control, e.g. adaptive [4] |
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7/ | 22 | . | Electrodes specially adapted therefor or their manufacture (B23H 7/08, B23H 7/12, B23H 9/00 take precedence) [4] |
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7/ | 24 | . | . | Electrode material [4] |
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7/ | 26 | . | Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode [4] |
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7/ | 28 | . | . | Moving electrode in a plane normal to the feed direction, e.g. orbiting [4] |
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7/ | 30 | . | . | Moving electrode in the feed direction (B23H 7/32 takes precedence) [4] |
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7/ | 32 | . | . | Maintaining desired spacing between electrode and workpiece [4] |
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7/ | 34 | . | Working media [4] |
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7/ | 36 | . | Supply or regeneration of working media [4] |
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7/ | 38 | . | Influencing metal working by using specially adapted means not directly involved in the removal of metal, e.g. ultrasonic waves, magnetic fields or laser irradiation [4] |
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9/ | 00 | Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (heat treatment by cathodic discharge C21D 1/38) [4] |
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9/ | 02 | . | Trimming or deburring [4] |
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9/ | 04 | . | Treating surfaces of rolls [4] |
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9/ | 06 | . | Marking or engraving [4] |
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9/ | 08 | . | Sharpening [4] |
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9/ | 10 | . | Working turbine blades or nozzles [4] |
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9/ | 12 | . | Forming parts of complementary shape, e.g. punch-and-die [4] |
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9/ | 14 | . | Making holes [4] |
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9/ | 16 | . | . | using an electrolytic jet [4] |
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9/ | 18 | . | Producing external conical surfaces or spikes (B23H 9/08 takes precedence) [4] |
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11/ | 00 | Auxiliary apparatus or details, not otherwise provided for [4] |
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