EDMke ts'ebetso ea machining eo haholo-holo e sebelisang electrode ea ho lahla (electrode ea EDM) e nang le geometry e itseng ho chesa geometry ea electrode karolong ea tšepe (conductive).Mokhoa oa EDMhangata e sebelisoa ha ho etsoa li-blanking le li-casting dies.
Mokhoa oa ho sebetsa ka mokhoa o leka-lekaneng oa thepa ka ho sebelisa ts'ebetso ea kutu e hlahisoang ke spark discharge e bitsoa EDM.EDM ke tlhase e tsoang ka har'a mokelikeli sebakeng se tlase sa motlakase.
EDM ke mofuta oa ho itšehla thajana, 'me litšobotsi tsa eona ke tse latelang: Li-electrode tse peli tsa spark discharge li na le matla a phahameng pele a tsoa.Ha li-electrode tse peli li le haufi le tse ling, ka mor'a hore sehare se pakeng tsa tsona se robehe, ho tsoa ha spark ho hlaha hang-hang.Ka ts'ebetso ea ho senya, ho hanyetsa pakeng tsa li-electrode tse peli ho fokotseha haholo, 'me motlakase pakeng tsa li-electrode tse peli le oona o fokotseha haholo.Mocha oa spark o tlameha ho tima ka nako kamora ho boloka nako e khuts'oane (hangata 10-7-10-3s), e le ho boloka litšobotsi tsa "palo e batang" ea ho tsoa ha spark (ke hore, matla a mocheso a phetoho ea matla a mocha. e ke ke ea fetisetsoa botebong ba electrode), e le hore matla a Channel a sebetse ka tekanyo e nyenyane haholo.Phello ea matla a kanale e ka etsa hore eleketrode e senyehe hanyenyane.
Likaroloana:
1.EDM ke ea machining a sa amaneng le batho
Ha ho na puisano e tobileng pakeng tsa electrode ea sesebelisoa le workpiece, empa ho na le lekhalo la ho ntša spark.Lekhalo lena hangata le pakeng tsa 0.05 ~ 0.3mm, 'me ka linako tse ling le ka fihla ho 0.5mm kapa ho feta.Lekhalo le tletse mokelikeli o sebetsang, 'me khatello e phahameng ea Pulse discharge, e ntša kutu holim'a workpiece.
2.Na "ho hlola ho tiea ka bonolo"
Kaha EDM e sebelisa ka ho toba matla a motlakase le matla a mocheso ho tlosa lisebelisoa tsa tšepe, ha e amane haholo le matla le boima ba lisebelisoa tsa mosebetsi, kahoo li-electrode tsa lisebelisoa tse bonolo li ka sebelisoa ho sebetsana le lisebelisoa tse thata ho finyella "bonolo bo hlōlang ho tiea".
3.E khona ho sebetsana le lisebelisoa leha e le life tsa tšepe tse thata ho mochine le lisebelisoa tsa conductive
Kaha ho tlosoa ha thepa nakong ea ts'ebetso ho finyelloa ke liphello tsa motlakase le mocheso oa ho ntša, machinability ea thepa haholo-holo e itšetlehile ka conductivity ea motlakase le thepa ea mocheso ea thepa, joalo ka ntlha ea ho qhibiliha, ntlha e belang, matla a khethehileng a mocheso, mocheso oa mocheso, resistivity. , joalo-joalo, ha hoo e ka bang Ha ho letho le amanang le thepa ea eona ea mechine (bothata, matla, joalo-joalo).Ka tsela ena, e ka phunyeletsa mefokolo ea lisebelisoa tsa setso tsa ho itšeha ka lisebelisoa, 'me e ka lemoha ho sebetsa ha li-workpieces tse thata le tse thata tse nang le lisebelisoa tse bonolo, esita le lisebelisoa tse thata tse kang polycrystalline litaemane mela le li-cubic boron nitride li ka sebetsoa.
4.Mabala a bōpehileng a rarahaneng a ka etsoa ka mochine
Kaha sebopeho sa electrode ea sesebelisoa se ka kopitsoa feela ho workpiece, e loketse ka ho khetheha bakeng sa ho sebetsana le li-workpieces tse nang le libopeho tse rarahaneng tsa holim'a metsi, tse kang ho sebetsana le hlobo e rarahaneng ea cavity.Haholo-holo, ho amoheloa ha theknoloji ea ho laola lipalo ho etsa hore e be ntho ea sebele ho sebelisa li-electrode tse bonolo ho sebetsana le likarolo tse nang le libopeho tse rarahaneng.
5.Likarolo tse nang le litlhoko tse khethehileng li ka sebetsoa
E ka sebetsana le likarolo tse nang le litlhoko tse khethehileng tse kang marako a tšesaane, a elastic, a tlaase-tlaase, likoti tse nyenyane, likoti tse nang le sebōpeho se khethehileng, likoti tse tebileng, joalo-joalo, hape li ka sebetsana le litlhaku tse nyenyane ka hlobo.Kaha sesebelisoa sa electrode le workpiece ha se kopane ka ho toba nakong ea machining, ha ho na matla a ho itšeha bakeng sa machining, kahoo e loketse ho sebetsa li-workpieces tse tlaase-tlaase le micromachining.
EDM ke mofuta o mong oa ts'ebetso ea machining, re ka u thusa ho rarolla bothata ba hau ba tloaelo.
Haeba u na le lipotso kapa u batla ho hloka ts'ebeletso efe kapa efe e tloaelehileng mabapi le CNC Machining, ka kopo ikopanye le rona ka bolokolohi.
Nako ea poso: Aug-22-2022