EDM tau loj hlob tuaj. EDM tau coj nws qhov chaw ua pov thawj, kev siv thev naus laus zis, raug xaiv rau qhov nws tuaj yeem ua tau, ntau dua li qhov kev siv tshuab ua haujlwm tsis tuaj yeem ua. EDM tshuab thev naus laus zis tau nthuav tawm lub ntiaj teb ntawm cov ntawv thov tshiab uas qhov tseem ceeb ntxiv yog muab tso rau ntawm cov khoom siv hluav taws xob graphite siv.
Thaum muaj ntau txoj hauv kev siv los txiav txim siab cov khoom siv rau txoj haujlwm, peb ntseeg tias muaj tsib yam uas txhais tau hais tias qhov sib txawv ntawm kev ua tiav thiab tsis ua haujlwm, cov txiaj ntsig thiab kev poob.
Hlau tshem tawm tus nqi (MRR)
Kev tshem tawm cov hlau feem ntau yog qhia raws li cubic millimeters ib teev (mm3 / hr) lossis cubic inches ib teev (in3 / hr), tab sis qhov tseeb tuaj yeem hais qhov tseeb raws li € / hr. Kev ua tiav qhov ua tau zoo MRR tsis yog ib qho teeb meem ntawm kev teeb tsa lub tshuab raug. Nws kuj tseem suav nrog lub zog ncaj qha dissipated hauv cov txheej txheem EDM. Graphite feem ntau muaj txiaj ntsig zoo dua li cov hlau electrodes, txawm li cas los xij cov hlau tshem tawm sib txawv ntawm hom graphite. Nrog rau cov khoom siv electrode kom zoo / ua haujlwm hlau / daim ntawv thov ua ke MRR tuaj yeem ua kom tiav.
Hnav Resistance (WR)
Muaj plaub hom kev hnav: volumetric, ces kaum, kawg, thiab sab. Ntawm plaub, peb ntseeg hais tias lub kaum sab xis hnav yog qhov tseem ceeb tshaj plaws txij li cov contours ntawm qhov kawg txiav yog txiav txim siab los ntawm cov electrode lub peev xwm los tiv thaiv kev yaig ntawm nws cov ces kaum thiab cov npoo. Nws ua raws li hais tias yog ib qho electrode tuaj yeem tiv thaiv kev yaig ntawm nws cov ntsiab lus yooj yim tshaj plaws, ces tag nrho hnav yuav raug txo kom tsawg, thiab qhov siab tshaj plaws electrode lub neej ua tiav. Electrode yaig tsis tuaj yeem tiv thaiv, tab sis nws tuaj yeem txo qis los ntawm kev xaiv cov khoom siv hluav taws xob zoo / ua haujlwm hlau ua ke thiab ua haujlwm ntawm qhov chaw zoo.
Lub peev xwm ntawm electrode los tsim thiab tswj cov ntsiab lus yog ncaj qha ntsig txog nws cov kev tiv thaiv rau hnav thiab nws cov machinability. Kev txo qis qis yuav tsum xaiv cov khoom siv hluav taws xob uas sib xyaw ua ke nrog lub zog siab nrog kev kub siab ua haujlwm.
Nto tiav (SF)
Kev ua kom zoo ntawm qhov chaw yog tau los ntawm kev sib xyaw ua ke ntawm cov khoom siv hluav taws xob zoo, cov dej ntws zoo, thiab cov chaw tsim hluav taws xob tsim nyog. High zaus, tsis tshua muaj zog thiab orbiting tsim qhov zoo tshaj plaws tiav, raws li cov kev mob no tsim me me, tsawg txhais craters nyob rau hauv cov hlau ua hauj lwm. Qhov kawg nto tiav yuav yog daim iav duab ntawm lub electrode nto, yog li Angstrofine thiab Ultrafine particle, siab zog graphites yog qhov kev xaiv zoo tshaj plaws rau xov electrodes.
Machineability
Txhua tus kws tshaj lij uas tau ua graphite tau paub tias graphite txiav tau yooj yim heev. Tsuas yog ua kom yooj yim rau lub tshuab tsis tas yuav ua cov khoom siv qhov kev xaiv zoo tshaj plaws rau electrode. Nws kuj yuav tsum muaj zog los tiv thaiv kev puas tsuaj los ntawm kev tuav thiab los ntawm cov txheej txheem EDM nws tus kheej. Lub zog thiab me me particle loj yog qhov tseem ceeb kom ua tiav qhov tsawg kawg nkaus radii thiab ze rau kev ua siab ntev. Cov ntaub ntawv hardness kuj yog ib qho tseem ceeb hauv graphite machinability, vim cov ntaub ntawv nyuaj electrode yuav ntau dua rau chipping thaum lub sij hawm machining txheej txheem.
Tus nqi khoom siv
Tus nqi ntawm cov khoom siv hluav taws xob feem ntau tsuas yog ib feem me me ntawm tag nrho cov nqi EDM txoj haujlwm. Dab tsi yog feem ntau overlooked, txawm li cas los xij, yog tias cov khoom siv hluav taws xob tau txiav txim siab sab nraud tag nrho cov nqi ua haujlwm tsis muaj nuj nqis kiag li.
Fabrication lub sij hawm, txiav lub sij hawm, kev ua hauj lwm, electrode hnav - tag nrho cov yam no nyob ntawm seb cov khoom siv electrode ntau dua li lwm yam. Yog li nws yog ib qho tseem ceeb uas koj paub txog cov khoom thiab kev ua tau zoo ntawm cov khoom siv hluav taws xob uas muaj nyob rau hauv vim tias lawv cuam tshuam rau cov hlau ua haujlwm uas koj ua haujlwm. Tsuas yog nrog cov ntaub ntawv no nws tuaj yeem ua tus nqi / kev ua tau zoo los txiav txim siab tus nqi tseeb ntawm txoj haujlwm EDM.
