I-Edm isetshenziswa kakhulu ekubumbeni izikhunta nezingxenye ezinezimo eziyinkimbinkimbi zemigodi nezimbobo; Ukucubungula izinto ezahlukahlukene zokuqhuba, njenge-alloy eqinile nensimbi eqinile; Ukucubungula imigodi ejulile nencane, imigodi enobunjwa obukhethekile, imifantu ejulile, amalunga amancane kanye nokusika izingcezu ezincane, njll.; Ukucubungula amathuluzi ahlukahlukene okwakha, amathempulethi kanye nama-gauge endandatho yentambo, njll.

Umgomo wokucubungula

Ngesikhathi se-EDM, i-electrode yamathuluzi kanye ne-workpiece kuxhunywe ngokulandelana ezinsikeni ezimbili zokunikezwa kwamandla okushaya bese kucwiliswa kuketshezi olusebenzayo, noma uketshezi olusebenzayo lushajwa kusikhala sokukhipha. I-electrode yamathuluzi ilawulwa ukuze inikeze i-workpiece ngohlelo lokulawula oluzenzakalelayo lwe-gap. Lapho isikhala esiphakathi kwama-electrode amabili sifinyelela ibanga elithile, i-voltage ye-impulse esetshenziswa kuma-electrode amabili izophula uketshezi olusebenzayo futhi ikhiqize ukukhishwa kwe-spark.

Esiteshini esincane sokukhipha, inani elikhulu lamandla okushisa ligxiliswa ngokushesha, izinga lokushisa lingafinyelela ku-10000℃ futhi ingcindezi nayo inoshintsho olukhulu, ukuze izinto zensimbi ezilandelwayo endaweni yokusebenza yaleli phuzu zincibilike ngokushesha futhi ziphele, bese ziqhuma zibe uketshezi olusebenzayo, ziqine ngokushesha, zakhe izinhlayiya zensimbi eqinile, bese zithathwa uketshezi olusebenzayo. Ngalesi sikhathi ebusweni bento yokusebenza kuzoshiya amamaki amancane emigodi, uketshezi luyeke okwesikhashana, uketshezi olusebenzayo phakathi kwama-electrode amabili ukubuyisela isimo sokushisa.

I-voltage elandelayo ye-pulse ibe isiphuka kwenye indawo lapho ama-electrode esondelene khona, okwenza ukukhishwa kwe-spark bese kuphinda inqubo. Ngakho-ke, yize inani lensimbi eligqwalile ngokukhishwa kwe-pulse lincane kakhulu, insimbi eningi ingaguguleka ngenxa yezinkulungwane zokukhishwa kwe-pulse ngomzuzwana, ngokukhiqiza okuthile.

Ngaphansi kwesimo sokugcina igebe lokukhipha eliqhubekayo phakathi kwe-electrode yamathuluzi kanye ne-workpiece, insimbi ye-workpiece iyagqwala ngenkathi i-electrode yamathuluzi ifakwa njalo ku-workpiece, futhi ekugcineni isimo esihambisana nesimo se-electrode yamathuluzi siyagqwala. Ngakho-ke, uma nje isimo se-electrode yamathuluzi kanye nemodi yokunyakaza ehlobene phakathi kwe-electrode yamathuluzi kanye ne-workpiece, izinhlobo ezahlukene zamaphrofayili ayinkimbinkimbi zingagqwala. Ama-electrode amathuluzi ngokuvamile enziwa ngezinto ezingamelani nokugqwala ezine-conductivity enhle, iphuzu lokuncibilika eliphezulu kanye nokucutshungulwa okulula, njengethusi, i-graphite, i-copper-tungsten alloy kanye ne-molybdenum. Enkambisweni yokugaya, i-electrode yamathuluzi nayo inokulahlekelwa, kodwa kungaphansi kwenani lokugqwala kwensimbi ye-workpiece, noma cishe akukho kulahlekelwa.

Njengendlela yokukhipha uketshezi, uketshezi olusebenzayo ludlala indima ekupholiseni nasekususeni ama-chip ngesikhathi sokucubungula. Uketshezi olusebenzayo oluvamile luphakathi nendawo ene-viscosity ephansi, i-flash point ephezulu kanye nokusebenza okuzinzile, njenge-kerosene, amanzi angenawo i-ion kanye ne-emulsion. Umshini we-spark kagesi uhlobo lokukhipha uketshezi oluzikhukhumezayo, izici zawo zimi kanje: ama-electrode amabili okukhipha uketshezi ane-voltage ephezulu ngaphambi kokukhipha, lapho ama-electrode amabili esondela, i-medium iyaphuka, bese kuvela ukukhishwa kwe-spark. Kanye nenqubo yokuqhekeka, ukumelana phakathi kwama-electrode amabili kwehla kakhulu, kanti i-voltage phakathi kwama-electrode nayo yehla kakhulu. Isiteshi se-spark kumele sicinywe ngesikhathi ngemuva kokugcinwa isikhathi esifushane (ngokuvamile ama-10-7-10-3s) ukuze kugcinwe izici "ze-pole ebandayo" zokukhishwa kwe-spark (okungukuthi, amandla okushisa okuguqulwa kwamandla esiteshi awafinyeleli ekujuleni kwe-electrode ngesikhathi), ukuze amandla esiteshi asetshenziswe ebangeni elincane. Umphumela wamandla esiteshi ungabangela ukuthi i-electrode iguge endaweni. Indlela lapho isenzakalo sokugqwala esikhiqiza lapho kusetshenziswa ukukhishwa kwe-spark senza khona imishini yokulinganisa ukuze Le nto ibizwa ngokuthi i-electric spark machining. I-Edm iwukukhishwa kwe-spark endaweni ewuketshezi ngaphakathi kwebanga eliphansi le-voltage. Ngokwesimo se-tool electrode kanye nezici zokunyakaza okuhlobene phakathi kwe-tool electrode kanye ne-workpiece, i-edM ingahlukaniswa ngezinhlobo ezinhlanu. Ukusikwa kwe-edM okusikiwe ngocingo kwezinto eziqhubayo kusetshenziswa i-wire moving axially njenge-tool electrode kanye ne-workpiece ehamba ngesimo nosayizi ofiselekayo; Ukusikwa kwe-Edm kusetshenziswa i-wire noma ukwakha isondo lokugaya eliqhubayo njenge-tool electrode ye-keyhole noma yokwakha ukugaya; Kusetshenziselwa ukusikwa kwe-thread ring gage, i-thread plug gage [1], igiya njll. Ukucutshungulwa kwemigodi emincane, ukuhlanganiswa kwendawo, ukuqinisa indawo kanye nezinye izinhlobo zokucutshungulwa. I-Edm ingacubungula izinto kanye nezimo eziyinkimbinkimbi okunzima ukuzisika ngezindlela ezijwayelekile zokusikwa. Akukho mandla okusika ngesikhathi sokusikwa; Ayikhiqizi i-burr kanye ne-cutting groove kanye nezinye iziphambeko; Izinto ze-tool electrode akudingeki zibe nzima kunezinto zokusebenza; Ukusetshenziswa okuqondile kokucutshungulwa kwamandla kagesi, kulula ukufeza ukuzenzekela; Ngemva kokucutshungulwa, indawo ikhiqiza ungqimba lokuguqulwa kwesimo, okumele kwezinye izinhlelo zokusebenza lususwe kakhulu; Kuyinkinga ukubhekana nokungcola kwentuthu okubangelwa ukuhlanzwa nokucutshungulwa kokusebenza. uketshezi.