CS210083B1 - Method of electrospark machining of the moulded surfaces of the workpieces and device for executing the same - Google Patents

Method of electrospark machining of the moulded surfaces of the workpieces and device for executing the same Download PDF

Info

Publication number
CS210083B1
CS210083B1 CS655479A CS655479A CS210083B1 CS 210083 B1 CS210083 B1 CS 210083B1 CS 655479 A CS655479 A CS 655479A CS 655479 A CS655479 A CS 655479A CS 210083 B1 CS210083 B1 CS 210083B1
Authority
CS
Czechoslovakia
Prior art keywords
workpiece
tool electrode
machining
tank
electrode
Prior art date
Application number
CS655479A
Other languages
Czech (cs)
Slovak (sk)
Inventor
Ladislav Senecky
Jozef Kunc
Jan Havalec
Jan Buza
Original Assignee
Ladislav Senecky
Jozef Kunc
Jan Havalec
Jan Buza
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ladislav Senecky, Jozef Kunc, Jan Havalec, Jan Buza filed Critical Ladislav Senecky
Priority to CS655479A priority Critical patent/CS210083B1/en
Priority to AT308780A priority patent/AT388891B/en
Priority to DE19803024023 priority patent/DE3024023A1/en
Priority to CH5313/80A priority patent/CH648229A5/en
Priority to GB8030565A priority patent/GB2060460B/en
Priority to SE8006763A priority patent/SE451805B/en
Priority to FR8020856A priority patent/FR2466308A1/en
Publication of CS210083B1 publication Critical patent/CS210083B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—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
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode

Abstract

Electrospark working of shaped surfaces of a workpiece (1) submerged at least partly in a working liquid (5) contained in a vessel (4) with the surface (3) being worked facing the bottom of the vessel (4) and situated above a tool electrode (2) consisting of at least one electrode preferably in bar form is carried out with relative movement of workpiece and tool electrode in direction of a tangent of or parallel to the worked surface and substantially perpendicular to the worked surface at a speed of their relative movement higher than 0.2 ms<-1>. <IMAGE>

Description

Vynález sa týká spósobu elektroiskrového obrábania tvarových pldch obrobkov, najmě rotačných a rovinných a zariadenia k prevádzaniu spdsobu.BACKGROUND OF THE INVENTION The present invention relates to a method for electro-spark machining of shaped workpieces, in particular rotary and planar workpieces, and a method for operating the method.

Elektroiskrové obrábanie technologicky náročných tvarových ploch obrobkov, hlavně s vysokými technicko-fyzikálnymi vlastnosťami ako s£ například ich pevnosť, tvrdosť, húževnatosť a neorientovaná drsnost, nachádzá v praxi stále širšie uplatněni©. Naariek svojim mnohým výhodám má elektroiskrové obrábanie a súčasné zodpovedajúce zariadenie niektoré nedostatky, respektive obmeddujúce faktory, ktoré bránia jeho ďalšiemu širokému uplatneniu. . Jednym z obnmedzuácich faktorov . je zhoršený výplac-h meddielektrodového priestoru a zhoršená stabilita obrábacieho procesu pri obrábaní vačších pldch, ako i nízký obrábací výkon limitovaný požadovanou drsnošťou povrchu o^iracow^wj plochy.Electro-spark machining of technologically demanding workpiece surfaces, mainly with high technical-physical properties such as their strength, hardness, toughness and non-oriented roughness, is becoming increasingly widespread in practice. Naariek has many advantages for its electro-spark machining and its corresponding corresponding equipment, which have some drawbacks or limitations that prevent its further widespread application. . One of the limiting factors. there is a deterioration of the inter-electrode space and deterioration in the stability of the machining process when machining larger surfaces, as well as low machining performance limited by the required surface roughness of the surface.

V súčasnooti sa . s cielom zlepšenia výplachu meddielektrodového priestoru používajú přídavné pohyby elektrod a nútený výplach otvormi alebo štrbinou v nástrojovej elektrodě a za účelom zA/výenia výkonu obrábania pri zachovaní požadovanej kvaaity povrchu sa využívá viackanálové obrábanie. V prvom případe nemusí ani přídavnými pohybmi rozšířená medzera stačiť pre účinná evakuáciu produktov obrábania, najma pri dokončovacom obrábaní s malou energiou jednotlivých výbojov, připadne nevýhodou je i pracné odstraňovanie výstupkov.po výplachových otvoroch a štrbinách. V druhom případe je limitujácim faktorom zvyšovania produktivity obrábania jej nelineárna závislost na stúpajúcom počte kanálov p.re obtiaže plynúce zo súčasnej regulácie posuvu viacerých elektrod, ktoré sú spravidla pevné spojené s jediným suportom, takže pri skratovom stave jednej elektrody sú súčasným pohybom zo záběru vyřaděné z činnosti všetky ostatně.At the present time. to improve inter-electrode space irrigation use additional electrode motions and forced irrigation through holes or slots in the tool electrode, and multichannel machining is utilized to maintain the desired surface quality. In the first case, the extended gap may not be sufficient even for additional evacuation of the machining products, even in the case of finishing machining with low energy of individual discharges, or the disadvantage is laborious removal of the projections after the irrigation holes and slots. In the second case, the limiting factor for increasing machining productivity is its non-linear dependence on the increasing number of channels p.requirements resulting from simultaneous displacement control of multiple electrodes, which are generally fixed to a single support, so that when shorted by one electrode activities all else.

Vyššie uvedené nevýhody známých spdsobov a zaHadeni rieši spdsob elektr о hi o obrábania tvarových ploch obrobkov a zariadenie k prevádzaniu spdsobu podl’a tohoto vynálezu, ktorého podstatou je, že na pohybujúci sa obrobok pdsobí nástrojová elektroda v smere dotyčnice k obrábanej ploché obrobku a v smere v podstat© kolmom na obrábanú plochu obro^^ pričom rýchlosť vzjom^ho pohybu je vyášia ako . 0,2 ms“1.The above-mentioned disadvantages of the known methods and apparatuses are solved by a method of machining workpieces of the workpieces and a device for carrying out the method according to the invention, the principle being that the moving electrode is applied by a tool electrode in the tangent direction to the machined flat workpiece. © essentially perpendicular to the work p jail obro ^^ p ridged Rýc hl os ť vzjom ^ p oh yb him by Vyasa and is about to. 0 , 2 ms “ 1 .

Podstatou je tiež zariadenie k prevádzaniu spdsobu, kde obrobok je umiestnený nad nástrojovou elektrodou tak, že obrábaná plocha obrobku je orientovaná ku dnu nádrže, pričom nástrojová elektroda je tvořená jednou týčou, ktorej činná plocha má tvar zodpovedajúci konečnému tvaru obrábanej plochy obrobku a dížka činnej plochy nástrojovej elektrody .zodpovedá šírke obrábanej plochy obrobku.The invention also relates to a method for operating a method wherein the workpiece is positioned above the tool electrode such that the workpiece surface is oriented towards the bottom of the tank, the tool electrode being formed by a single bar whose working surface has a shape corresponding to the final shape of the workpiece surface and the working surface length. of the tool electrode corresponds to the width of the workpiece surface.

Do podstaty patří aj zariadenie k prevádzaniu spSsobu, kde obrobok je umiestnený nad nástrojovou elektrodou tak, že obrábaná plocha obrobku je orientovaná ku dnu nádrže, pričom nástrojová elektroda je tvořená aspoň dvomi tyčami, ktoré sú od seba navzájom oddzolované a každá z nich je připojená na samootatný přívod prúdu z generátore impulzov.The apparatus also includes a device for operating the method, wherein the workpiece is positioned above the tool electrode such that the workpiece surface is oriented towards the bottom of the tank, the tool electrode being formed of at least two rods which are mutually insulated from each other and self-starting power supply from pulse generator.

Výhody tohoto spdsobu spočívajú v zlepšení podmienok pre evakuáciu splodín obrábaHa z meezzelektrodového priestoru a v likvidácii náhodilých poruchových stavov v iskrišti ako sú mootíky zo zhlukov vodivých n^^^i^jstdt alebo dočasné skraty na niektorom z ’ via2 cerých kanálov při viackanálovom obrábaní, čím sa podstatné. zlepší stabilita obrábacieho procesu, zvýši sa percento produktívnych elektrických impulzoo' z generátora, skráti sa celkový strojový čas obrábania a v dosledku obmecizznia skratoo a zlepšenia výplachu sa zlepší a zrovnomerní i finálna drsnost obrábaného povrchu. Okrem toho umořuje tento sposob obrábanie i rozmer^jších obrobkov bez nutnosti ich úplného ponořenia do pracovně j kvappliny.The advantages of this method are to improve the conditions for evacuation of the products from the inter-electrode space and to eliminate accidental fault conditions in the spark gap such as moots from conductive clusters or temporary short circuits on some of the multiple channels during multi-channel machining. substantial. improves the stability of the machining process, increases the percentage of productive electrical pulses from the generator, shortens the total machine machining time, and consequently improves the rinsing rate, and improves irrigation to improve evenness and final roughness of the machined surface. In addition, this method also reduces the machining of larger workpieces without the need to completely immerse them in the working fluid.

Na pripojenom výkrese je znázorněné příkladné prevedenie zariadenia na prevádzanie sposobu jlektroiskrooéhl obrábania tvarových pldch obr^kov.The accompanying drawing shows an exemplary embodiment of an apparatus for transmitting electro-disks for machining shaped shapes.

Obrobok 1, ktorého rozměry mcžu byť pomezně velké, je umiestnený v nádrži 4 nad nástrojovou elektrodou 2 a obrábaná plocha 3. obrobku 1 je orientovaná ku dnu nádrže The workpiece 1, whose dimensions may be of relatively large dimensions, is located in the tank 4 above the tool electrode 2 and the work surface 3 of the workpiece 1 is oriented towards the bottom of the tank

Do pracovnej kvapaliny 5 je ponořená len obrábaná časť obrobku 1. Obrobok 1 a nástrojová elektroda 2_ sú připojené prívodmi 6. a 7 na generátor elektrických impulzov 8.Only the machined part of the workpiece 1 is submerged in the working fluid 5. The workpiece 1 and the tool electrode 2 are connected by leads 6 and 7 to the electric pulse generator 8.

Do nosiče /na obr. ne zakresleného/ sa upevní · nástrojová elektroda 2 a podobným spčsobom sa upevní obrobek 1 nad elektrodu '2.In the carrier / in FIG. The tool electrode 2 is fastened in the drawing and the workpiece 1 is fastened similarly over the electrode 2.

Do nádrže 4 sa napustí pracovná kvapalina 5. a obrobok 1, ktorého pohyb zaisťuje poháňaci člen 17 a nástrojová elektroda .2, ktorej pohyb je odvodený od mechanizmu pre pracovný posuv 11, sa uvedu do ozájomnéhl pohybu .9 v smere dotyčnice k obrábane j . ploché· 3 obrobku 1, pričom zostáva velkost meezielektrodlvého prirttlru krnštantná. Vzájomný pohyb 9 v smere dotyčnice k obrábanej ploché 3 obrobku .1 a nástrojovej elektrody mdže byť priamočiary, alebo pri rotačných obrobk^h kruhový, a to postupný · alebo vratný. S pokračujúcim úberom sa obrobok 1 a nástrojová elektroda 2. přibližuje k sebe v ' smere v podstatě kolmom na obirábanú plochu 4» Čistá pracovná kvapalina 5. sa privádza do nádrže 4 hubicou 13. V . prostore nádrže . sa aplikuje bočný výplach celého objemu nádrže £ a znečistěná pracovná kvapalina 5 sa odvódza potrubím 15 k regeněrácii a opatovnému pn^šii;iu.The working fluid 5 is filled into the tank 4 and the workpiece 1, the movement of which is driven by the driving member 17 and the tool electrode 2, the movement of which is derived from the working feed mechanism 11, is reciprocated 9 in the direction of the tangent to the machining. 3 of the workpiece 1, whereby the size of the interdigital nature remains constant. The relative movement 9 in the direction of the tangent to the workpiece 3 to be machined 3 and the tool electrode can be rectilinear or, in the case of rotary workpieces, circular, successive or reversible. With continued removal, the workpiece 1 and the tool electrode 2 approach each other in a direction substantially perpendicular to the surface to be machined. 4 The clean working fluid 5 is fed into the tank 4 through a nozzle 13. V. tank space. a side flushing of the entire volume of the tank 6 is applied and the contaminated working fluid 5 is drained via line 15 for regeneration and caution.

Pre zvýšenie rychlosti obrábania sa používá nástrojová elektroda 2 •tvořená aspoň dvorní tyčami, ktoré sú navzájom od seba odizolované a každá z nich je připojená na samootatný přívod prúdu z generátora impulzov 8.To increase the machining speed, a tool electrode 2 consisting of at least yard rods, which are insulated from each other and each of which is connected to a self-starting power supply from the pulse generator 8, is used.

Claims (3)

2 cerých kanélov při viaekanálovom obrábaní, čím sa podstatné zlepší stabilita obrábaciehoprocesu, zvýši sa percento produktívnych elektrických impulzov z generátora, skráti sacelkový strojový čas obrábania a v ddsledku obraedzenia skratov a zlepšenia výplachu sazlepší a zrovnomerní i finélna drsnost obrábaného povrchu. Okrem toho umožňuje tentospdsob obrábanie i rozměrnějších obrobkov bez nutnosti ich úplného ponorenia do pracov-ně j kvapaliny. Na pripojenom výkrese je znázorněné příkladné prevedenie zariadenia na preváózaniesposobu elektroiskrového obrábania tvarových pldch obrobkov. Obrobok 1, ktorého rozměry mdžu byť poměrně vel’ké, je umiestnený v nádrži 4 nad ná-strojovou elektrodou 2 a obrábané plocha 3 obrobku 1 je orientovaná ku dnu nádrže 4. Do pracovněj kvapaliny 5 je ponořená len obrábaná časť obrobku 1. Obrobok 1 a nástrojováelektroda 2. sú připojené prívodmi 6 a 7 na generátor elektrických impulzov 8, Do nosiča /na obr. ne zakresleného/ sa upevní nástrojová elektroda 2 a podobným spd-soborn sa upevní obrobok 1 nad elektrodu 2. Do nádrže 4 sa napustí pracovná kvapalina 5. a obrobok 1, ktorého pohyb zaisťujepoháňací člen 17 a nástrojová elektroda 2, ktorej pohyb je odvodený od mechanizmu prepracovný posuv 11, sa uvedu do vzájomného pohybu 9 v smere dotyčnice k obrábanej ploché3 obrobku 1, pričom zostáva velkosť medzielektro’dového priestoru konštantná. Vzájomnýpohyb 9 v smere dotyčnice k obrábanej ploché 3. obrobku 1 a nástrojovej elektrody 2_ mdžebyť priamočiary, alebo při rotačných obrobkoch kruhový, a to postupný alebo vratný, S po-kračujúcim úberom sa obrobok 1 a nástrojová elektroda 2 přibližuje k sebe v smere v pod-statě kolmom na obrábanú plochu 3, Čistá pracovná kvapalina 5 sa privédza do nádrže 4hubicou 13. V priestore nádrže sa aplikuje bočný výplach celého objemu nádrže £ a zne-čistěná pracovná kvapalina 5 sa odvádza potrubím 15 k regenerácii a opatovnému použitiu. Pře zvýšenie rychlosti obrábania sa používá nástrojová elektroda 2 tvořená aspoňdvomi tyčami, ktoré sú navzájom od seba odizolované a každá z nich je připojená na sa-mostatný přívod prúdu z generátora impulzov 8. PREDMET VYNALEZU2 black canals in multi-channel machining, thereby significantly improving machining stability, increasing the percentage of productive electrical pulses from the generator, shortening the machine's machining time and shortening the roughness and improving the surface roughness and uniformity of the machined surface. In addition, this allows machining of larger workpieces without having to completely immerse them in the working fluid. In the accompanying drawing, an exemplary embodiment of an electro-scrapping machine for workpiece machining is illustrated. The workpiece 1, whose dimensions can be relatively large, is located in the tank 4 above the tooling electrode 2, and the workpiece surface 3 of the workpiece 1 is oriented towards the bottom of the tank 4. Only the workpiece 1 to be machined is submerged in the working fluid 5. and the tool electrode 2 is connected to the electric pulse generator 8 by the inlets 6 and 7, the tool electrode 2 is fixed to the carrier (not shown) and the workpiece 1 is fastened to the electrode 2 in a similar manner. 5. and the workpiece 1 whose movement is provided by the drive member 17 and the tool electrode 2, the movement of which is derived from the mechanism of the feed feed 11, are brought into motion 9 in the direction of the tangent to the machined flat workpiece 1, while the size of the intermediate cavity remains constant. The relative movement 9 in the direction of the tangent to the machined flat workpiece 1 and the tool electrode 2 can be rectilinear or, in the case of rotary workpieces, circular, in a gradual or reversible manner. In fact, a clean working fluid 5 is fed into the tank 4 by a nozzle 13. In the tank area, a lateral rinse of the entire tank volume 5 is applied and the impure working fluid 5 is discharged via line 15 for regeneration and care. To increase the machining speed, a tool electrode 2 consisting of at least two rods is used, which are insulated from each other and each connected to a separate current supply from the pulse generator. 1. Spdsob elektroiskrového obrábania tvarových pldch obrobkov, najma rotačných a rovin-ných, vyznačujúei sa tým, že na pohybujúci sa obrobok pdsobí nástrojová elektroda v smere dotyčnice k obrábanej ploché a v smere v podstatě kolmom k obrábanej ploché,-1 pričom rýchlosť vzájomného pohybu je vyššia ako 0,2 msCLAIMS 1. A method of electro-machining machining workpieces of workpieces, in particular rotary and planar, characterized in that a tool electrode is applied to the moving workpiece in the direction of the tangent to the machined flat and in a direction substantially perpendicular to the machined flat, wherein the speed of the relative movement. is greater than 0.2 ms 2. Zariadanie k prevádzaniu spSsobu podl’a bodu 1, tvořené nástrojovou elektrodou připo-jenou spolu s obrobkom na zdroj elektrických impulzov s mechanizmem! pre vzájemné po- 3 hyby obrobku a nástroj ověj elektrody voči sebe v nádrži s pracovnou kvapalinou, kto-rá sa čistá privádza do nádrže hubicou a znečistěná sa odvádza potrubím, vyznačujúcesa tým, že obrobok /1/ je umiestnený nad nástrojovou elektrodou /2/ tak, že obrábanáplocha /3/ obrobku /1/ je orientovaná ku dnu nádrže /4/, pričom nástrojová elektro-da /2/ je tvořená jednou týčou, ktorej činná plocha /12/ má tvar zodpovedajúci konečnému tvaru obrábanej plechy /3/ obrobku /1/ a dížka činnej plochy /12/ nástrojovejelektrody /2/ zodpovedá šírke obrábanej plochy /3/ obrobku /1/.2. A device for transmitting a method according to claim 1, comprising a tool electrode coupled to a workpiece source with a mechanism together with the workpiece! for the mutual movement of the workpiece and the tool of the electrode relative to each other in the working fluid tank, which is cleanly fed into the tank by the nozzle and contaminated by the pipe, characterized in that the workpiece (1) is located above the tool electrode (2) such that the work surface (3) of the workpiece (1) is oriented towards the bottom of the tank (4), wherein the tool electrode (2) is formed by one face, the active surface (12) of which corresponds to the final shape of the machined sheet (3) of the workpiece And the length of the active surface (12) of the tool electrode (2) corresponds to the width of the work surface (3) of the workpiece (1). 3. Zariadenie podlá bodu 1 a 2 vyznačujúce sa tým, že nástrojová elektroda /2/ je tvorená aspoň dvomi tyčemi, ktoré sú od seba navzájom odizolované a každá z nich je pripojená na samostatný přívod prúdu z generátora impulzov /8/. 1 výkresApparatus according to claim 1 or 2, characterized in that the tool electrode (2) is formed by at least two rods which are insulated from each other and each connected to a separate current supply from the pulse generator (8). 1 drawing
CS655479A 1979-09-28 1979-09-28 Method of electrospark machining of the moulded surfaces of the workpieces and device for executing the same CS210083B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CS655479A CS210083B1 (en) 1979-09-28 1979-09-28 Method of electrospark machining of the moulded surfaces of the workpieces and device for executing the same
AT308780A AT388891B (en) 1979-09-28 1980-06-11 DEVICE FOR ELECTRONIC SPARKING OF MOLDED SURFACES OF WORKPIECES
DE19803024023 DE3024023A1 (en) 1979-09-28 1980-06-26 METHOD AND DEVICE FOR ELECTRIC SPARK MACHINING OF WORKPIECES
CH5313/80A CH648229A5 (en) 1979-09-28 1980-07-10 METHOD FOR ELECTRONIC SPARKING OF MOLDED SURFACES OF WORKPIECES, ARRANGEMENT AND TOOL ELECTRODE FOR CARRYING OUT THIS METHOD.
GB8030565A GB2060460B (en) 1979-09-28 1980-09-22 Spark erosion method
SE8006763A SE451805B (en) 1979-09-28 1980-09-26 DEVICE FOR SPARKWORKING OF FORMATED SURFACES OF THE WORK PIECE
FR8020856A FR2466308A1 (en) 1979-09-28 1980-09-29 ELECTRO-EROSION MACHINING METHOD, DEVICE AND ELECTRODE TOOL FOR IMPLEMENTING SAID METHOD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS655479A CS210083B1 (en) 1979-09-28 1979-09-28 Method of electrospark machining of the moulded surfaces of the workpieces and device for executing the same

Publications (1)

Publication Number Publication Date
CS210083B1 true CS210083B1 (en) 1982-01-29

Family

ID=5412871

Family Applications (1)

Application Number Title Priority Date Filing Date
CS655479A CS210083B1 (en) 1979-09-28 1979-09-28 Method of electrospark machining of the moulded surfaces of the workpieces and device for executing the same

Country Status (7)

Country Link
AT (1) AT388891B (en)
CH (1) CH648229A5 (en)
CS (1) CS210083B1 (en)
DE (1) DE3024023A1 (en)
FR (1) FR2466308A1 (en)
GB (1) GB2060460B (en)
SE (1) SE451805B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK173558B1 (en) * 1998-11-11 2001-03-12 Jm Holding Arden As Method for machining interfacial surfaces between a ship engine body rack and the associated undercarriage as well as apparatus and
CN117583677B (en) * 2024-01-19 2024-04-16 山东豪迈机械科技股份有限公司 Working fluid containing device of electric spark machine tool and electric spark machine tool

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1274953A (en) * 1960-08-26 1961-11-03 Soudure Elec Languepin Method and device for electro-erosion machining
US3144542A (en) * 1961-07-13 1964-08-11 Gen Motors Corp Electrical stock removal apparatus
CH595184A5 (en) * 1976-05-05 1978-02-15 Charmilles Sa Ateliers
CH602562A5 (en) * 1976-12-23 1978-07-31 Mitsui Toatsu Chemicals
JPS5819415B2 (en) * 1977-03-09 1983-04-18 株式会社ソディック Electrical discharge machining method and equipment
GB1577766A (en) * 1977-05-06 1980-10-29 Rolls Royce Electrolytic machining
JPS5854945B2 (en) * 1977-09-30 1983-12-07 日本鋼管株式会社 Satin electrical discharge machining equipment for roll-shaped workpieces

Also Published As

Publication number Publication date
SE451805B (en) 1987-11-02
SE8006763L (en) 1981-03-29
GB2060460B (en) 1984-07-25
AT388891B (en) 1989-09-11
CH648229A5 (en) 1985-03-15
FR2466308B1 (en) 1984-12-14
FR2466308A1 (en) 1981-04-10
DE3024023A1 (en) 1981-04-16
ATA308780A (en) 1989-02-15
GB2060460A (en) 1981-05-07

Similar Documents

Publication Publication Date Title
GB2080176A (en) Electrical discharge machining methods and apparatus
CN109570666B (en) Bipolar tool electrode for electrolytic wire cutting machining and manufacturing and machining method
CN1958206A (en) Electrochemical machining method in cellular dimple structure
CN109693009B (en) Workpiece reciprocating motion assisted axial flushing electrolytic wire cutting machining method and device
CN108746894B (en) Micro-tube electrode pulse dynamic electrolytic cutting method
US3352774A (en) Apparatus for electrolytically tapered or contoured cavities
CN111805026B (en) Electrolytic milling-electrolytic mechanical composite milling integrated processing method
EP0743122A2 (en) Methods for making extrusion dies
US3616343A (en) Electrochemical machining method
US5951884A (en) Electric discharge machining method and apparatus
CS210083B1 (en) Method of electrospark machining of the moulded surfaces of the workpieces and device for executing the same
El-Hofy et al. Evaluation of an apparatus for electrochemical arc wire-machining
US3371022A (en) Low-electrolyte-pressure electro-chemical machining
CN2256790Y (en) Ultrasonic vibration-pulse discharging composite working machine
US3847781A (en) Apparatus for electrolytic material removal
CN111730156A (en) Amplitude-variable pulse electric spark-electrolysis combined machining method
EP0071479B1 (en) Wire electrical discharge machining process and apparatus
CN212311092U (en) Multi-electrode discharge machining auxiliary device and electric spark machine tool
CN1022582C (en) Method and apparatus for machining sieve plate
CN217570939U (en) Drilling tool for machining diamond grinding wheel
DE102016200639A1 (en) Process and device for electrochemical removal
WO2001034333A1 (en) Electrical discharge surface treating method
US3764510A (en) Method and apparatus for electrolytic material removal
JPS56119321A (en) Electric discharge machining method
EP0151914A1 (en) Device for dressing a metal-bonded grinding wheel