I-graphite yinto eqhelekileyo engeyiyo-metallic, emnyama, enokumelana nokushisa okuphezulu kunye nokuphantsi, umbane olungileyo kunye ne-thermal conductivity, i-lubricity enhle kunye neempawu zeekhemikhali ezizinzile; Ukuqhuba kakuhle kombane, kunokusetyenziswa njenge-electrode kwi-EDM. Xa kuthelekiswa ne-electrode yethusi yendabuko, igraphite ineenzuzo ezininzi ezifana nokumelana nobushushu obuphezulu, ukusetyenziswa okuphantsi kokukhutshwa, kunye ne-thermal deformation encinci. Ibonisa ukulungelelaniswa okungcono ekuqhutyweni kwezinto ezichanekileyo kunye neziyinkimbinkimbi kunye ne-electrodes enkulu. Ngokuthe ngcembe iye yatshintsha i-electrode yobhedu njengeentlantsi zombane. Eyona nto iphambili yee-electrode zomatshini [1]. Ukongezelela, izinto ze-graphite ezikwaziyo ukunxiba zingasetyenziswa phantsi kwesantya esiphezulu, ubushushu obuphezulu, kunye neemeko zoxinzelelo oluphezulu ngaphandle kweoli yokuthambisa. Izixhobo ezininzi zisebenzisa ngokubanzi iikomityi zepiston zezinto zegraphite, izitywina kunye neebheringi
Okwangoku, izinto zegraphite zisetyenziswa ngokubanzi kwimimandla yoomatshini, isinyithi, imboni yeekhemikhali, ukhuselo lwelizwe kunye neminye imimandla. Zininzi iindidi zamalungu egraphite, ulwakhiwo lwamalungu antsonkothileyo, ukuchaneka komgangatho ophezulu kunye neemfuno zomgangatho womphezulu. Uphando lwasekhaya malunga ne-graphite machining alunzulu ngokwaneleyo. Izixhobo zoomatshini bokwenza igraphite yasekhaya nazo zimbalwa. Ukusetyenzwa kwegraphite kumazwe angaphandle ikakhulu kusebenzisa amaziko okulungisa igraphite ukusetyenzwa ngesantya esiphezulu, esele ngoku ibelelona khokelo lophuhliso lomatshini wegraphite.
Eli nqaku ikakhulu lihlalutya itekhnoloji yomatshini wegraphite kunye nezixhobo zomatshini wokulungisa ukusuka kule miba ilandelayo.
① Uhlalutyo lokusebenza komatshini wegraphite;
② Amanyathelo obugcisa obusetyenziswa ngokuqhelekileyo kwigraphite;
③ Izixhobo ezisetyenziswa ngokuqhelekileyo kunye neeparamitha zokusika ekuqhubeni igraphite;
Uhlalutyo lwentsebenzo yokusika igraphite
I-graphite yinto enqabileyo ene-heterogeneous structure. Ukusika i-graphite kufezekiswa ngokuvelisa i-chips engapheliyo okanye i-powder ngokusebenzisa i-brittle fracture ye-graphite material. Ngokuphathelele umatshini wokusika wezinto zegraphite, abaphengululi basekhaya nakwamanye amazwe benze uphando oluninzi. Abaphengululi bamazwe angaphandle bakholelwa ukuba inkqubo yokwakheka kwetshiphu yegraphite irhabaxa xa umgca wokusika wesixhobo unxibelelana nomsebenzi, kwaye incam yesixhobo iyatyunyuzwa, yenze iitshiphusi ezincinci kunye nemigodi emincinci, kunye ne-A crack iveliswa, eya kwandisa. ukuya ngaphambili nasezantsi isixhobo incam, ukwenza umngxuma ukwaphuka, kwaye inxalenye workpiece iya kwaphulwa ngenxa ukuqhubela phambili isixhobo, ukwenza chips. Abaphengululi basekhaya bakholelwa ukuba i-graphite particles intle kakhulu, kwaye i-cut cut yesixhobo ine-arc enkulu ye-tip, ngoko ke indima ye-cut cut ifana ne-extrusion. Izinto zegraphite kwindawo yoqhagamshelwano yesixhobo - i-workpiece icinezelwe ngeraki yobuso kunye nencam yesixhobo. Ngaphantsi koxinzelelo, i-brittle fracture iveliswa, ngaloo ndlela yenze i-chips chips [3].
Kwinkqubo yokusika i-graphite, ngenxa yotshintsho kwindlela yokusika yeekona ezijikelezileyo okanye iikona ze-workpiece, utshintsho kwi-acceleration yesixhobo somatshini, utshintsho kwindlela kunye ne-angle yokusika ngaphakathi nangaphandle kwesixhobo, ukusika ukungcangcazela. , njl., impembelelo ethile ibangelwa i-workpiece ye-graphite, ephumela kumda wengxenye yegraphite. I-Corner brittleness kunye ne-chip, ukunxiba izixhobo ezinzima kunye nezinye iingxaki. Ngokukodwa xa kusetyenzwa iikona kunye neenxalenye zegraphite ezibhityileyo nezicutheneyo, kunokwenzeka ukuba kubangele iikona kunye nokuqhekeka kwesixhobo sokusebenza, esiye saba nzima kwi-graphite machining.
Inkqubo yokusika igraphite 
Iindlela zemveli zomatshini wezinto zegraphite ziquka ukujika, ukugaya, ukugaya, ukusika, njl., kodwa banokuqonda kuphela ukulungiswa kweengxenye zegraphite ezinemilo elula kunye nokuchaneka okuphantsi. Ngophuhliso olukhawulezayo kunye nokusetyenziswa kwamaziko omatshini anesantya esiphezulu segraphite, izixhobo zokusika, kunye neetekhnoloji ezixhasayo ezinxulumeneyo, ezi ndlela zoomatshini bemveli ziye zathatyathelwa indawo buchwephesha besantya esiphezulu. Ukuziqhelanisa kubonise ukuba: ngenxa yeempawu ezinzima kunye ne-brittle zegraphite, ukugqoka izixhobo kunzulu kakhulu ngexesha lokucubungula, ngoko ke, kucetyiswa ukuba kusetyenziswe izixhobo ezifakwe kwi-carbide okanye idayimane.
Amanyathelo enkqubo yokusika
Ngenxa yobungcali begraphite, ukuze kuphunyezwe umgangatho ophezulu wokulungiswa kweengxenye zegraphite, amanyathelo enkqubo ehambelanayo kufuneka athathwe ukuqinisekisa. Xa i-roughing graphite material, isixhobo sinokutya ngokuthe ngqo kwi-workpiece, usebenzisa iiparitha zokusika ezinkulu; ukuze ugweme ukutshiza ngexesha lokugqiba, izixhobo ezinokumelana nokunxiba kakuhle zihlala zisetyenziselwa ukunciphisa inani lokusika isixhobo, kunye nokuqinisekisa ukuba i-pitch yesixhobo sokusika ingaphantsi kwe-1/2 yobubanzi besixhobo, kwaye wenze inkqubo. amanyathelo afana nokucutshungulwa kokunciphisa xa kusetyenzwa zombini iziphelo [4].
Kwakhona kuyimfuneko ukulungiselela ngokufanelekileyo indlela yokusika ngexesha lokusika. Xa kusetyenzwa i-contour yangaphakathi, i-contour ejikelezileyo kufuneka isetyenziswe kangangoko kunokwenzeka ukusika inxalenye yamandla yecandelo elisikiweyo ukuze lihlale likhudlwana kwaye linamandla, kunye nokuthintela i-workpiece ekuqhekekeni [5]. Xa ulungisa iindiza okanye i-grooves, khetha i-diagonal okanye i-spiral feed kangangoko kunokwenzeka; gwema iziqithi kwindawo yokusebenza yenxalenye, kwaye ugweme ukusika i-workpiece kwindawo yokusebenza.
Ukongezelela, indlela yokusika nayo yinto ebalulekileyo echaphazela ukusika kwegraphite. Ukungcangcazela okusikwa ngexesha lokusila kungaphantsi kwaleyo yokusila. Ubunzima bokusika besixhobo ngexesha lokugaya buncitshiswe ukusuka kubuninzi ukuya kwi-zero, kwaye akuyi kubakho mcimbi wokubhobhoza emva kokuba isixhobo sinqumle kwi-workpiece. Ngoko ke, ukugaya phantsi ngokuqhelekileyo kukhethwe ukulungiswa kwegraphite.
Xa kusetyenzwa ii-workpieces zegraphite ezinezakhiwo ezintsonkothileyo, ukongeza ekuphuculeni itekhnoloji yokucubungula ngokusekelwe kwezi ngqwalasela zingentla, amanyathelo athile akhethekileyo kufuneka athathwe ngokwemiqathango ethile ukufezekisa iziphumo ezilungileyo zokusika.
Ixesha lokuposa: Feb-20-2021