I-graphite iyinto evamile engeyona eyensimbi, emnyama, enokumelana nokushisa okuphezulu nokuphansi, ukuqhutshwa okuhle kukagesi nokushisa, ukuthambisa okuhle nezici zamakhemikhali ezizinzile; conductivity kagesi enhle, ingasetshenziswa njenge-electrode ku-EDM. Uma kuqhathaniswa nama-electrode ethusi endabuko, i-graphite inezinzuzo eziningi ezifana nokumelana nokushisa okuphezulu, ukusetshenziswa okuphansi kokukhipha, kanye nokuguqulwa okuncane kokushisa. Ibonisa ukuguquguquka okungcono ekucubungulweni kokunemba kanye nezingxenye eziyinkimbinkimbi kanye nama-electrode anosayizi omkhulu. Kancane kancane iye yashintsha ama-electrode ethusi njengezinhlansi zikagesi. Okujwayelekile kwama-electrode machining [1]. Ngaphezu kwalokho, izinto ezikwazi ukumelana nokugqoka kwe-graphite zingasetshenziswa ngaphansi kwezimo zejubane eliphezulu, izinga lokushisa eliphezulu, nokucindezela okukhulu ngaphandle kwamafutha okugcoba. Imishini eminingi isebenzisa kabanzi izinkomishi ze-piston ezibonakalayo ze-graphite, izimpawu nama-bearings
Njengamanje, izinto ze-graphite zisetshenziswa kabanzi emkhakheni wemishini, i-metallurgy, imboni yamakhemikhali, ukuvikela izwe kanye neminye imikhakha. Kunezinhlobo eziningi zezingxenye ze-graphite, isakhiwo sezingxenye eziyinkimbinkimbi, ukunemba okuphezulu kwe-dimensional kanye nezidingo zekhwalithi ephezulu. Ucwaningo lwasekhaya mayelana ne-graphite machining alujulile ngokwanele. Amathuluzi omshini wokucubungula i-graphite wasekhaya nawo mancane uma kuqhathaniswa. Ukucutshungulwa kwe-graphite kwamanye amazwe ikakhulukazi kusebenzisa izikhungo zokucubungula i-graphite zokucubungula ngesivinini esikhulu, manje osekuyisiqondiso esiyinhloko sokuthuthukiswa kwe-graphite machining.
Lesi sihloko sihlaziya kakhulu ubuchwepheshe be-graphite machining kanye namathuluzi omshini wokucubungula kusuka kuzici ezilandelayo.
①Ukuhlaziywa kokusebenza kwe-graphite machining;
② Izinyathelo zobuchwepheshe bokucubungula i-graphite ezivame ukusetshenziswa;
③ Amathuluzi asetshenziswa kakhulu kanye nemingcele yokusika ekucubunguleni i-graphite;
Ukuhlaziywa kokusebenza kwe-graphite
I-graphite iyimpahla ephukayo enesakhiwo esihlukile. Ukusika i-graphite kufinyelelwa ngokukhiqiza izinhlayiya ze-chip ezingaqhubeki noma impushana ngokuphuka kwe-brittle yezinto ze-graphite. Mayelana nendlela yokusika yezinto ze-graphite, izazi zasekhaya nakwamanye amazwe zenze ucwaningo oluningi. Izazi zakwamanye amazwe zikholelwa ukuthi inqubo yokwakheka kwe-graphite chip icishe ifane lapho unqenqema lwethuluzi luthintana ne-workpiece, futhi ichopho lethuluzi liyachotshozwa, lenze ama-chips amancane nemigodi emincane, bese kukhiqizwa i-A crack, ezonwebeka. ngaphambili nangaphansi kwephuzu lethuluzi, ukwakha umgodi wokuphuka, futhi ingxenye ye-workpiece izophulwa ngenxa yokuthuthuka kwethuluzi, ukwakha ama-chips. Izazi zasekhaya zikholelwa ukuthi izinhlayiya ze-graphite zihle kakhulu, futhi umkhawulo wokusika wethuluzi une-arc enkulu ye-tip, ngakho-ke indima yokusika ifana ne-extrusion. Izinto ze-graphite endaweni yokuxhumana yethuluzi - ucezu lokusebenza lucindezelwa ubuso be-rake kanye nesihloko sethuluzi. Ngaphansi kwengcindezi, i-brittle fracture ikhiqizwa, ngaleyo ndlela yakhe ama-chips chips [3].
Enqubweni yokusika i-graphite, ngenxa yezinguquko endleleni yokusika yamakhona ayindilinga noma amakhona e-workpiece, izinguquko ekusheshiseni kwethuluzi lomshini, izinguquko endleleni kanye ne-angle yokusika ngaphakathi nangaphandle kwethuluzi, ukusika ukudlidliza. , njll., umthelela othile ubangelwa umsebenzi we-graphite, okuholela emaphethelweni engxenye yegraphite. Ukuqina kwekhona nokuqhekeka, ukuguga kwamathuluzi okunzima nezinye izinkinga. Ikakhulukazi lapho ucubungula amakhona kanye nezingxenye zegraphite ezizacile nezinezimbambo eziwumngcingo, kungenzeka ukuthi kubangele amakhona kanye nokuqhekeka kwe-workpiece, okubuye kube nzima ekwenzeni i-graphite machining.
Inqubo yokusika i-graphite 
Izindlela zendabuko zemishini yezinto ze-graphite zihlanganisa ukuphenduka, ukugaya, ukugaya, ukusika, njll., kodwa bangabona kuphela ukucutshungulwa kwezingxenye ze-graphite ezinobunjwa obulula nokunemba okuphansi. Ngokuthuthuka okusheshayo kanye nokusetshenziswa kwezikhungo zemishini ze-graphite ezinesivinini esikhulu, amathuluzi okusika, nobuchwepheshe obusekelayo obuhlobene, lezi zindlela zemishini zendabuko ziye zathathelwa indawo ubuchwepheshe bemishini bejubane eliphezulu. Ukuzijwayeza kubonise ukuthi: ngenxa yezici eziqinile neziqinile ze-graphite, ukugqoka kwamathuluzi kuyingozi kakhulu ngesikhathi sokucubungula, ngakho-ke, kunconywa ukusebenzisa amathuluzi ahlanganiswe ne-carbide noma idayimane.
Izinyathelo zenqubo yokusika
Ngenxa yobuchwepheshe be-graphite, ukuze kuzuzwe ukucubungula okuphezulu kwezingxenye ze-graphite, izinyathelo zenqubo ehambisanayo kufanele zithathwe ukuze kuqinisekiswe. Lapho roughing graphite impahla, ithuluzi kungaba ngqo ukondla workpiece, usebenzisa imingcele ukusika kuqhathaniswa ezinkulu; ukuze ugweme ukuqoshwa ngesikhathi sokuqedwa, amathuluzi anokumelana nokugqokwa okuhle avame ukusetshenziselwa ukunciphisa inani lokusika lethuluzi, futhi Uqinisekise ukuthi iphimbo lethuluzi lokusika lingaphansi kwe-1/2 yobubanzi bethuluzi, futhi wenze inqubo. izinyathelo ezinjengokucubungula ukusheshisa lapho ucubungula iziphetho zombili [4].
Kuyadingeka futhi ukuhlela ngendlela efanele indlela yokusika ngesikhathi sokusika. Lapho kucutshungulwa i-contour yangaphakathi, i-contour ezungezile kufanele isetshenziswe ngangokunokwenzeka ukusika ingxenye yamandla yengxenye esikiwe ukuze ihlale ishubile futhi iqine, futhi kuvinjwe ucezu lokusebenza ukuthi lungaphuli [5]. Lapho ucubungula izindiza noma ama-grooves, khetha i-diagonal noma i-spiral feed ngangokunokwenzeka; gwema iziqhingi endaweni yokusebenza yengxenye, futhi ugweme ukusika i-workpiece endaweni yokusebenza.
Ngaphezu kwalokho, indlela yokusika nayo iyisici esibalulekile esithinta ukusika kwe-graphite. Ukudlidliza okusika ngesikhathi sokugaya kuncane kunokwe-up milling. Ubukhulu bokusika bethuluzi ngesikhathi sokugaya phansi buyancishiswa ukusuka kokuphezulu kuye ku-zero, futhi ngeke kube khona into ebhampishayo ngemuva kokuthi ithuluzi lisike endaweni yokusebenza. Ngakho-ke, ukugaya phansi ngokuvamile kukhethelwa ukucutshungulwa kwe-graphite.
Lapho ucubungula ama-workpieces e-graphite anezakhiwo eziyinkimbinkimbi, ngaphezu kokuthuthukisa ubuchwepheshe bokucubungula ngokusekelwe kulokhu okucatshangelwayo okungenhla, ezinye izinyathelo ezikhethekile kufanele zithathwe ngokuvumelana nezimo ezithile ukuze kuzuzwe imiphumela engcono kakhulu yokusika.
Isikhathi sokuthumela: Feb-20-2021