Edm feem ntau yog siv rau machining pwm thiab qhov chaw nrog cov duab ntawm qhov thiab kab noj hniav; Ua ntau yam khoom siv hluav taws xob, xws li tawv alloy thiab hardened steel; Ua qhov sib sib zog nqus thiab zoo, qhov tshwj xeeb zoo li lub qhov, qhov sib sib zog nqus grooves, nqaim pob qij txha thiab txiav nyias nyias, thiab lwm yam.; Machining ntau yam cuab yeej tsim, qauv thiab xov nplhaib ntsuas, thiab lwm yam.

Txoj cai ua

Thaum lub sij hawm EDM, cov cuab yeej electrode thiab cov khoom ua haujlwm tau txuas nrog rau ob tug ncej ntawm lub zog hluav taws xob thiab muab tso rau hauv cov kua ua haujlwm, los yog cov kua ua haujlwm tau them rau hauv qhov sib txawv ntawm cov khoom siv hluav taws xob. gap tsis siv neeg tswj qhov system. Thaum qhov sib txawv ntawm ob lub electrodes mus txog ib qho kev ncua deb, qhov impulse voltage thov ntawm ob lub electrodes yuav ua rau cov kua ua haujlwm thiab ua kom muaj hluav taws xob tawm.

Nyob rau hauv lub micro channel ntawm paug, ib tug loj npaum li cas ntawm tshav kub lub zog yog concentrated instantaneously, qhov kub thiab txias yuav ua tau siab li 10000 ℃ thiab lub siab kuj muaj ib tug ntse hloov, thiaj li hais tias lub zos kab nyob rau hauv cov ntaub ntawv hlau nyob rau ntawm qhov chaw ua hauj lwm tam sim ntawd. yaj thiab vaporize, thiab tawg mus rau hauv cov kua ua hauj lwm, sai sai condense, tsim cov khoom hlau hais, thiab raug tshem tawm los ntawm cov kua ua hauj lwm.Lub sij hawm no nyob rau saum npoo ntawm lub workpiece yuav tawm ib tug me me qhov. cov qhab nia, qhov tso tawm tau nres luv luv, cov kua dej ua haujlwm ntawm ob lub electrodes los kho cov rwb thaiv tsev.

Tom ntej no mem tes voltage ces lov nyob rau lwm qhov chaw uas cov electrodes nyob ze rau ib leeg, ua ib tug spark paug thiab rov ua dua cov txheej txheem. Yog li, txawm hais tias tus nqi ntawm cov hlau corroded ib mem tes paug yog heev me me, ntau hlau yuav eroded vim. mus rau txhiab tus mem tes tawm ib ob, nrog rau qee yam khoom tsim tau.

Nyob rau hauv cov xwm txheej ntawm kev ua kom tsis tu ncua ntawm qhov sib txawv ntawm lub cuab yeej electrode thiab cov khoom ua haujlwm, cov hlau ntawm lub workpiece yog corroded thaum lub cuab yeej electrode txuas ntxiv mus rau hauv qhov chaw ua haujlwm, thiab thaum kawg cov duab sib haum rau cov duab ntawm cov cuab yeej electrode yog machined. Yog li ntawd, ntev li ntev raws li cov duab ntawm lub cuab yeej electrode thiab tus txheeb ze txoj kev txav ntawm lub cuab yeej electrode thiab lub workpiece, ntau yam complex profiles yuav machined.Too electrodes feem ntau yog ua. ntawm cov ntaub ntawv corrosion-resistant nrog zoo conductivity, siab melting point thiab yooj yim ua, xws li tooj liab, graphite, tooj liab-tungsten alloy thiab molybdenum.In the process of machining, the tool electrode kuj muaj poob, tab sis tsawg dua tus nqi ntawm corrosion ntawm lub workpiece hlau, los yog txawm nyob ze kom tsis txhob poob.

Raws li qhov nruab nrab tso tawm, cov kua dej ua haujlwm kuj ua lub luag haujlwm hauv kev ua kom txias thiab nti tshem tawm thaum lub sijhawm ua haujlwm.Cov kua dej ua haujlwm feem ntau yog nruab nrab nrog qis viscosity, siab flash point thiab kev ua haujlwm ruaj khov, xws li kerosene, dej deionized thiab emulsion.Electric spark tshuab yog ib yam ntawm nws tus kheej excited tawm, nws cov yam ntxwv yog raws li nram no: ob electrodes ntawm lub txim paug muaj ib tug high voltage ua ntej paug, thaum ob electrodes mus kom ze, qhov nruab nrab yog tawg, ces lub txim hluav taws xob tshwm sim.Nrog rau cov txheej txheem kev puas tsuaj, qhov kev tiv thaiv ntawm ob lub electrodes txo qis heev, thiab qhov voltage ntawm cov electrodes kuj txo qis sharply.Lub txim taws channel yuav tsum tau tua nyob rau hauv lub sij hawm tom qab tau khaws cia rau lub sij hawm luv luv. (feem ntau yog 10-7-10-3s) kom tswj tau qhov "txias ncej" cov yam ntxwv ntawm lub txim tawm (piv txwv li, lub zog hluav taws xob ntawm lub zog hloov pauv tsis ncav cuag qhov tob ntawm cov electrode hauv lub sijhawm), yog li tias lub zog channel yog siv rau qhov tsawg kawg nkaus.Cov nyhuv ntawm lub zog channel tuaj yeem ua rau cov electrode yuav tsum tau corroded hauv zos.Txoj kev uas qhov tshwm sim corrosion uas ua rau thaum siv lub txim hluav taws xob undertakes dimensional machining rau cov khoom yog hu ua hluav taws xob txim machining.Edm yog lub txim hluav taws xob tawm hauv cov kua nruab nrab hauv qhov qis qis qis.Raws li daim ntawv ntawm cov cuab yeej electrode thiab cov yam ntxwv ntawm cov txheeb ze txav ntawm cov cuab yeej electrode thiab workpiece, edM tuaj yeem muab faib ua tsib Hom.Wire-cut edM txiav cov ntaub ntawv conductive siv axially txav hlau raws li cov cuab yeej electrode thiab workpiece txav raws li qhov xav tau cov duab thiab qhov loj me; Edm sib tsoo siv cov hlau los yog tsim cov hlau sib tsoo ua cov cuab yeej electrode rau keyhole los yog kev sib tsoo; Siv rau machining xov nplhaib gage, xov plug gage [1], iav thiab lwm yam.Small qhov ua, nto alloying, nto zog thiab lwm yam kev ua.Edm tuaj yeem ua cov ntaub ntawv thiab cov duab nyuaj uas nyuaj rau kev txiav los ntawm cov txheej txheem machining zoo tib yam.Tsis muaj kev txiav quab yuam thaum lub sij hawm machining; Tsis tsim burr thiab txiav zawj thiab lwm yam tsis xws luag; Cov cuab yeej electrode yuav tsum tsis txhob nyuaj tshaj li cov khoom siv ua haujlwm; Kev siv hluav taws xob ncaj qha , yooj yim rau kev ua tiav automation; Tom qab ua tiav, qhov saum npoo tsim cov txheej txheem metamorphosis, uas nyob rau hauv qee qhov kev siv yuav tsum tau muab tshem tawm ntxiv; Nws yog ib qho teeb meem los daws cov pa phem ua rau los ntawm kev ua kom huv thiab ua cov kua dej ua haujlwm.