I-Edm isetyenziswa ikakhulu kumatshini wokubumba kunye neenxalenye ezinemilo entsonkothileyo yemingxuma kunye nemingxuma; Ukucubungula izinto ezahlukeneyo zokuqhuba, ezifana ne-alloy eqinile kunye nentsimbi eqinile; Ukucubungula imingxuma enzulu kunye nelungileyo, imingxuma ekhethekileyo, i-grooves enzulu, amajoyina amancinci kunye nokusika amacwecwe amancinci, njl.; Ukutshiza izixhobo ezahlukeneyo zokubumba, iitemplates kunye neegeji zeeringi zentambo, njl.
Umgaqo wokucubungula
Ngexesha le-EDM, i-electrode yesixhobo kunye ne-workpiece idityaniswe ngokulandelelana kwiipali ezimbini ze-pulse power supply kwaye igxininiswe kulwelo olusebenzayo, okanye ulwelo olusebenzayo luhlawuliswa kwi-gap yokukhupha.I-electrode yesixhobo ilawulwa ukondla i-workpiece ngokusebenzisa inkqubo yokulawula i-gap ngokuzenzekelayo. Xa isithuba phakathi kwee-electrode ezimbini sifikelela kumgama othile, i-voltage ye-impulse esetyenziswe kwii-electrode ezimbini iya kuphula ulwelo olusebenzayo kwaye ivelise ukukhutshwa kwe-spark.
Kwijelo elincinci lokukhutshwa, inani elikhulu lamandla obushushu ligxininiswe ngokukhawuleza, iqondo lobushushu linokuba phezulu njenge-10000 ℃ kwaye uxinzelelo lunotshintsho olubukhali, ukwenzela ukuba izinto zentsimbi zomkhondo kwindawo yokusebenza yale ngongoma zinyibilike ngokukhawuleza kwaye zibe ngumphunga, kwaye ziqhume kulwelo olusebenzayo, ngokukhawuleza zijike, zenze amasuntswana esinyithi esomeleleyo ngexesha lolwelo olusebenzayo, kunye nekhefu elisebenzayo. amanqaku emingxuma amancinci, ukukhutshwa kuyeka ngokufutshane, ulwelo olusebenzayo phakathi kwee-electrode ezimbini ukubuyisela imeko yokugquma.
I-voltage ye-pulse elandelayo emva koko ihlahlela kwenye indawo apho i-electrode isondelene ngokusondeleyo, ivelisa ukukhutshwa kwe-spark kunye nokuphinda inkqubo.Ngoko ke, nangona isixa sesinyithi esidliwe ngokukhutshwa kwe-pulse sincinci kakhulu, isinyithi esingaphezulu sinokuchithwa ngenxa yamawaka e-pulse discharges ngomzuzwana, kunye nemveliso ethile.
Phantsi komqathango wokugcina umsantsa wokukhupha rhoqo phakathi kwesixhobo se-electrode kunye nesixhobo sokusebenza, isinyithi sesixhobo sokusebenzela sidliwe ngelixa i-electrode yesixhobo isoloko isondliwa kwindawo yokusebenza, kwaye ekugqibeleni imilo ehambelana nokumila kwesixhobo se-electrode yenziwe ngomatshini.Ngoko ke, okoko nje imilo yesixhobo se-electrode kunye nemowudi yentshukumo ehambelanayo phakathi kwesixhobo se-electrode kunye nomatshini we-electrode idla ngokuba yiprofayili entsonkothileyo. izixhobo ezinganyangekiyo kwi-corrosion kunye ne-conductivity enhle, indawo ephezulu yokunyibilika kunye nokucutshungulwa lula, njengobhedu, igraphite, i-copper-tungsten alloy kunye ne-molybdenum.Kwinkqubo yomatshini, i-electrode yesixhobo nayo inelahleko, kodwa ingaphantsi kobungakanani bokuhlwa kwentsimbi yokusebenza, okanye nokuba isondele ukuba akukho lahleko.
Njengesixhobo sokukhupha, ulwelo olusebenzayo nalo ludlala indima ekupholiseni nasekususweni kwetshiphu ngexesha lokucutshungulwa. Ulwelo olusebenzayo oluqhelekileyo luphakathi kunye ne-viscosity ephantsi, i-flash point ephezulu kunye nokusebenza okuzinzileyo, njenge-kerosene, amanzi adityanisiweyo kunye ne-emulsion.Umatshini we-spark wombane luhlobo lokukhutshwa okuzithandayo, iimpawu zayo zimi ngolu hlobo lulandelayo: i-electrodes ezimbini zikhupha, i-electrodes ezimbini zikhupha, i-electrodes ezimbini zikhupha i-voltage ezimbini. I-electrodes isondela, i-medium iyaphulwa, emva koko ukukhutshwa kwe-spark kwenzeka.Kunye kunye nenkqubo yokuphuka, ukuchasana phakathi kwee-electrode ezimbini kuncipha ngokukhawuleza, kwaye i-voltage phakathi kwe-electrode nayo iyancipha ngokukhawuleza.I-spark channel kufuneka icinywe ngexesha emva kokugcinwa ixesha elifutshane (ngokuqhelekileyo i-10-7-10-3s) ukugcina i-pale ye-pale ye-pale iimpawu zokushisa, ukukhupha i-pale yokushisa ukuguqulwa kwamandla akufikeleli kubunzulu be-electrode ngexesha), ukwenzela ukuba amandla omzila asetyenziswe kuluhlu oluncinci.Impembelelo yamandla ejelo inokubangela ukuba i-electrode ibe ne-corrode locally.Indlela eyenziwa yi-corrosion phenomenon evelisa xa usebenzisa i-spark discharge ithatha i-dimensional machining kwizinto ezibizwa ngokuba yi-spark spark medium kwi-dispark machining ye-voltage ephantsi kwi-dispark machining i-Edmcharge medium machining. Ngokwendlela yesixhobo se-electrode kunye neempawu zentshukumo ehambelanayo phakathi kwesixhobo se-electrode kunye nesixhobo sokusebenza, i-edM inokwahlulwa ibe ziindidi ezintlanu. Ukusikwa kwe-edM yocingo lwezixhobo zokuqhuba kusetyenziswa ucingo oluhamba nge-axially njengesixhobo se-electrode kunye nesixhobo sokusebenza esihamba ecaleni kwemilo kunye nobukhulu obufunwayo; iplagi gage [1], igiya etc.Ukusetyenzwa komngxuma omncinci, umxube womphezulu, ukomelezwa komphezulu kunye nezinye iintlobo zokusetyenzwa.Edm inokuqhuba izinto kunye neemilo ezintsonkothileyo ekunzima ukunqunyulwa ngeendlela eziqhelekileyo zomatshini.Akukho mandla okusika ngexesha lomatshini;Ayivelisi i-burr kunye ne-groove yokusika kunye nezinye iziphene;Isixhobo sombane we-electrode akufuneki kube nzima kunesixhobo sokusebenza, ukusetyenzwa kwesixhobo esizenzekelayo; umphezulu uvelisa umaleko we-metamorphosis, othi kwezinye izicelo kufuneka zisuswe ngakumbi;Kuyingxaki ukujongana nongcoliseko lomsi olubangelwa kukucocwa kunye nokulungiswa kolwelo olusebenzayo.
Ixesha lokuposa: Jul-23-2020