B23H1/00	7	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	B23H1/00	B23H1/00		1949
B23H1/02	8	Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges	B23H1/02	B23H1/02		717
B23H1/022	9	{for shaping the discharge pulse train (B23H1/024 takes precedence)}	B23H1/02	B23H1/02		756
B23H1/024	9	{Detection of, and response to, abnormal gap conditions, e.g. short circuits (preventing short circuits or other abnormal discharges by altering machining parameters using adaptive control B23H7/16)}	B23H1/02	B23H1/02		289
B23H1/026	9	{Power supply protection, e.g. detection of power switch breakdown}	B23H1/02	B23H1/02		50
B23H1/028	9	{for multiple gap machining}	B23H1/02	B23H1/02		107
B23H1/04	8	Electrodes specially adapted therefor or their manufacture (B23H9/00 takes precedence)	B23H1/04	B23H1/04		986
B23H1/06	9	Electrode material	B23H1/06	B23H1/06		282
B23H1/08	8	Working media	B23H1/08	B23H1/08		261
B23H1/10	8	Supply or regeneration of working media	B23H1/10	B23H1/10		675
B23H3/00	7	Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte	B23H3/00	B23H3/00		1384
B23H3/02	8	Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits	B23H3/02	B23H3/02		449
B23H3/04	8	Electrodes specially adapted therefor or their manufacture (B23H9/00 takes precedence)	B23H3/04	B23H3/04		780
B23H3/06	9	Electrode material	B23H3/06	B23H3/06		121
B23H3/08	8	Working media	B23H3/08	B23H3/08		225
B23H3/10	8	Supply or regeneration of working media	B23H3/10	B23H3/10		439
B23H5/00	7	Combined machining	B23H5/00	B23H5/00		240
B23H5/02	8	Electrical discharge machining combined with electrochemical machining	B23H5/02	B23H5/02		177
B23H5/04	8	Electrical discharge machining combined with mechanical working	B23H5/04	B23H5/04		295
B23H5/06	8	Electrochemical machining combined with mechanical working, e.g. grinding or honing	B23H5/06	B23H5/06		364
B23H5/08	9	Electrolytic grinding	B23H5/08	B23H5/08		701
B23H5/10	8	Electrodes specially adapted therefor or their manufacture (B23H1/04, B23H3/04 take precedence)	B23H5/10	B23H5/10		149
B23H5/12	8	Working media	B23H5/12	B23H5/12		52
B23H5/14	8	Supply or regeneration of working media	B23H5/14	B23H5/14		86
B23H7/00	7	Processes or apparatus applicable to both electrical discharge machining and electrochemical machining	B23H7/00	B23H7/00		98
B23H7/02	8	Wire-cutting	B23H7/02	B23H7/02		2412
B23H7/04	9	Apparatus for supplying current to working gap; Electric circuits specially adapted therefor	B23H7/04	B23H7/04		575
B23H7/06	9	Control of the travel curve of the relative movement between electrode and workpiece	B23H7/06	B23H7/06		288
B23H7/065	10	{Electric circuits specially adapted therefor}	B23H7/06	B23H7/06		402
B23H7/08	9	Wire electrodes	B23H7/08	B23H7/08		464
B23H7/10	10	Supporting, winding or electrical connection of wire-electrode	B23H7/10	B23H7/10		886
B23H7/101	11	{Supply of working media}	B23H7/10	B23H7/10		319
B23H7/102	11	{Automatic wire threading}	B23H7/10	B23H7/10		204
B23H7/104	11	{Wire tension control}	B23H7/10	B23H7/10		254
B23H7/105	11	{Wire guides}	B23H7/10	B23H7/10		343
B23H7/107	11	{Current pickups}	B23H7/10	B23H7/10		45
B23H7/108	11	{Used wire disposal devices}	B23H7/10	B23H7/10		133
B23H7/12	8	Rotating-disc electrodes	B23H7/12	B23H7/12		84
B23H7/14	8	Electric circuits specially adapted therefor, e.g. power supply {(B23H3/02 takes precedence)}	B23H7/14	B23H7/14		133
B23H7/16	9	for preventing short circuits or other abnormal discharges {by altering machining parameters using adaptive control}	B23H7/16	B23H7/16		156
B23H7/18	9	for maintaining or controlling the desired spacing between electrode and workpiece	B23H7/18	B23H7/18		597
B23H7/20	9	for program control, e.g. adaptive	B23H7/20	B23H7/20		640
B23H7/22	8	Electrodes specially adapted therefor or their manufacture (B23H7/08, B23H7/12, B23H9/00 take precedence)	B23H7/22	B23H7/22		239
B23H7/24	9	Electrode material	B23H7/24	B23H7/24		76
B23H7/26	8	Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode	B23H7/26	B23H7/26		981
B23H7/265	9	{Mounting of one or more thin electrodes}	B23H7/26	B23H7/26		264
B23H7/28	9	Moving electrode in a plane normal to the feed direction, e.g. orbiting	B23H7/28	B23H7/28		290
B23H7/30	9	Moving electrode in the feed direction (B23H7/32 takes precedence)	B23H7/30	B23H7/30		333
B23H7/32	9	Maintaining desired spacing between electrode and workpiece {, e.g. by means of particulate material}	B23H7/32	B23H7/32		74
B23H7/34	8	Working media	B23H7/34	B23H7/34		42
B23H7/36	8	Supply or regeneration of working media	B23H7/36	B23H7/36		389
B23H7/38	8	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	B23H7/38	B23H7/38		204
B23H9/00	7	Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (heat treatment by cathodic discharge C21D1/38)	B23H9/00	B23H9/00		1278
B23H9/001	8	{Disintegrating}	B23H9/00	B23H9/00		118
B23H9/003	8	{Making screw-threads or gears}	B23H9/00	B23H9/00		142
B23H9/005	8	{Machining elongated bodies, e.g. rods}	B23H9/00	B23H9/00		67
B23H9/006	8	{Cavity sinking (B23H9/14 takes precedence)}	B23H9/00	B23H9/00		102
B23H9/008	8	{Surface roughening or texturing}	B23H9/00	B23H9/00		195
B23H9/02	8	Trimming or deburring {(B23H9/003 takes precedence)}	B23H9/02	B23H9/02		262
B23H9/04	8	Treating surfaces of rolls	B23H9/04	B23H9/04		169
B23H9/06	8	Marking or engraving	B23H9/06	B23H9/06		210
B23H9/08	8	Sharpening	B23H9/08	B23H9/08		95
B23H9/10	8	Working turbine blades or nozzles	B23H9/10	B23H9/10		636
B23H9/12	8	Forming parts of complementary shape, e.g. punch-and-die	B23H9/12	B23H9/12		112
B23H9/14	8	Making holes	B23H9/14	B23H9/14		1222
B23H9/16	9	using an electrolytic jet	B23H9/16	B23H9/16		170
B23H9/18	8	Producing external conical surfaces or spikes (B23H9/08 takes precedence)	B23H9/18	B23H9/18		21
B23H11/00	7	Auxiliary apparatus or details, not otherwise provided for	B23H11/00	B23H11/00		2948
B23H11/003	8	{Mounting of workpieces, e.g. working-tables}	B23H11/00	B23H11/00		1199
B23H11/006	8	{Electrical contacts or wires (B23H7/10 takes precedence)}	B23H11/00	B23H11/00		136
B23H2200/00	7	Specific machining processes or workpieces	CPCONLY	B23H2200/00		32
B23H2200/10	8	for making bearings	CPCONLY	B23H2200/10		74
B23H2200/20	8	for making conical bores	CPCONLY	B23H2200/20		16
B23H2200/30	8	for making honeycomb structures	CPCONLY	B23H2200/30		77
B23H2300/00	7	Power source circuits or energization	CPCONLY	B23H2300/00		12
B23H2300/10	8	Pulsed electrochemical machining	CPCONLY	B23H2300/10		132
B23H2300/12	9	Positive and negative pulsed electrochemical machining	CPCONLY	B23H2300/12		43
B23H2300/20	8	Relaxation circuit power supplies for supplying the machining current, e.g. capacitor or inductance energy storage circuits	CPCONLY	B23H2300/20		149
B23H2300/22	9	Circuits using or taking into account line impedance to shape the discharge pulse	CPCONLY	B23H2300/22		44
B23H2400/00	7	Moving mechanisms for tool electrodes	CPCONLY	B23H2400/00		75
B23H2400/10	8	for rotating the electrode	CPCONLY	B23H2400/10		111
B23H2500/00	7	Holding and positioning of tool electrodes	CPCONLY	B23H2500/00		116
B23H2500/20	8	Methods or devices for detecting wire or workpiece position	CPCONLY	B23H2500/20		239
B23H2600/00	7	Machining conditions	CPCONLY	B23H2600/00		17
B23H2600/10	8	Switching of machining conditions during machining	CPCONLY	B23H2600/10		46
B23H2600/12	9	Switching from rough cutting to finish machining	CPCONLY	B23H2600/12		64
