Kungani sicabanga ukuthi i-titanium alloy iyinto enzima ukuyenza? Ngenxa yokuntuleka kokuqonda okujulile kwendlela yokucubungula kanye nokwenzeka kwayo.
1. I-Physical Phenomena ye-Titanium Machining
Amandla okusika okucubungula ingxubevange ye-titanium aphakeme kancane nje kunalawo ensimbi enobunzima obufanayo, kodwa isimo somzimba sokucubungula ingxubevange ye-titanium siyinkimbinkimbi kakhulu kunaleyo yokucubungula insimbi, okwenza ukucubungula kwe-titanium alloy kubhekane nobunzima obukhulu.
I-thermal conductivity yama-alloys amaningi e-titanium iphansi kakhulu, i-1/7 kuphela yensimbi kanye ne-1/16 ye-aluminium. Ngakho-ke, ukushisa okukhiqizwa ngesikhathi sokusika i-titanium alloy ngeke kudluliselwe ngokushesha ku-workpiece noma kuthathwe ama-chips, kodwa kuzoqoqwa endaweni yokusika, futhi izinga lokushisa elikhiqizwayo lingaba phezulu njenge-1000 ° C, okubangela ukuthi onqenqemeni lwethuluzi lokugqoka, ukuqhekeka nokufa ngokushesha. Ukwakhiwa konqenqema okwakhayo, ukubukeka ngokushesha kwemiphetho egugile, nakho kukhiqiza ukushisa okwengeziwe endaweni yokusika, kufinyeze ukuphila kwamathuluzi.
Izinga lokushisa eliphakeme elikhiqizwa ngesikhathi sokusika liphinde libhubhise ubuqotho obungaphezulu bezingxenye ze-titanium alloy, okuholela ekunciphiseni ukunemba kwejometri kwengxenye kanye nomsebenzi onzima onciphisa kakhulu amandla ayo okukhathala.
I-elasticity ye-titanium alloys ingaba yinzuzo ekusebenzeni kwengxenye, kodwa ngesikhathi sokusika, ukuguqulwa kwe-elastic kwe-workpiece kuyimbangela ebalulekile yokudlidliza. Ukucindezela kokusika kubangela ukuthi i-workpiece "elastic" ishiye ithuluzi futhi ibophe kabusha, ukuze ukungqubuzana phakathi kwethuluzi nomsebenzi kukhulu kunesenzo sokusika. Inqubo yokungqubuzana iphinde ikhiqize ukushisa, okwandisa inkinga yokungahambi kahle kokushisa kwezingxube ze-titanium.
Le nkinga ibucayi nakakhulu lapho kucutshungulwa izingxenye ezinezindonga ezincane noma eziyindandatho ezigogeke kalula. Akuwona umsebenzi olula ukucubungula izingxenye ezinezindonga ezincane ze-titanium alloy zibe nokunemba kobukhulu obulindelwe. Ngoba lapho i-workpiece material iphushwa ithuluzi, ukuwohloka kwendawo odongeni oluncane kudlule ububanzi obunwebekayo ukuze kukhiqizwe ukuguqulwa kwepulasitiki, futhi amandla ezinto ezibonakalayo nobulukhuni endaweni yokusika kukhula kakhulu. Ngalesi sikhathi, umshini ngesivinini esinqunyiwe sokuqala sokusika kuba phezulu kakhulu, okuholela ekugugeni okubukhali kwethuluzi.
"Ukushisa" "kuyicala" lobunzima bokucubungula ama-alloys e-titanium!
2. Ulwazi lwezobuchwepheshe lokucubungula ama-alloys e-titanium
Ngokwesisekelo sokuqonda indlela yokucutshungulwa kwe-titanium alloys, kuhlanganiswe nolwazi lwangaphambilini, inqubo eyinhloko yolwazi lokucubungula ama-alloys e-titanium kanje:
(1) Ifaka ngejiyomethri ye-engeli ephozithivu ukuze kuncishiswe amandla okusika, ukushisa okusika kanye nokuguqulwa kwesiqeshana sokusebenza.
(2) Gcina okuphakelayo njalo ukuze ugweme ukuqina kwe-workpiece. Ithuluzi kufanele lihlale lisesimweni sokuphakela ngesikhathi sokusika. Inani le-radial cutting ae kufanele libe ngu-30% werediyasi ngesikhathi sokugaya.
(3) Uketshezi olunqamula ukucindezela okuphezulu nokugeleza okukhulu kusetshenziselwa ukuqinisekisa ukuzinza okushisayo kwenqubo yomshini futhi kuvimbele indawo yokusebenzela ekuwohlokeni kanye nokulimala kwamathuluzi ngenxa yokushisa ngokweqile.
(4) Gcina umkhawulo wokusika we-blade ubukhali, imimese engacacile iyimbangela yokushisa nokuguga, okungaholela kalula ekuhlulekeni kwemimese.
(5) Ukucubungula esimweni esithambile kakhulu se-titanium alloy ngangokunokwenzeka, ngoba impahla iba nzima kakhulu ukucubungula ngemva kokuqina, ukwelashwa kokushisa kuthuthukisa amandla wento futhi kwandisa ukuguga kwe-blade.
(6) Sebenzisa indawo enkulu yekhala noma i-chamfer ukusika okuningi ngangokunokwenzeka onqenqemeni lokusika. Lokhu kunganciphisa amandla okusika nokushisa endaweni ngayinye futhi kuvimbele ukuphuka kwendawo. Lapho kugaywa ama-alloys e-titanium, phakathi kwemingcele yokusika, isivinini sokusika sinethonya elikhulu empilweni yamathuluzi vc, kulandelwa inani lokusika kwe-radial (ukujula kokugaya) ae.
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3. Ukuxazulula izinkinga zokucubungula i-titanium kusukela ku-blade
Ukugqokwa kwe-blade groove okwenzeka ngesikhathi sokucutshungulwa kwe-titanium alloy ukuguga kwendawo ngemuva nangaphambili eduze nokujula kwendlela esikiwe, okuvame ukubangelwa ungqimba oluqinile olushiywe ukucutshungulwa kwangaphambilini. Ukusabela kwamakhemikhali nokusabalalisa phakathi kwethuluzi nezinto zokusebenza endaweni yokushisa yokucubungula engaphezu kuka-800°C futhi kungesinye sezizathu zokwakheka kokugqoka kwe-groove. Ngoba ngesikhathi sokucutshungulwa, ama-molecule e-titanium we-workpiece aqoqana phambi kwe-blade, futhi "ahlanganiswe" ku-blade ngaphansi kwengcindezi ephakeme kanye nokushisa okuphezulu, okwenza unqenqema olwakhiwe. Lapho unqenqema olwakhelwe phezulu luxebuka kude nonqenqema lokusika, lususa uqweqwe lwe-carbide lokufaka, ngakho-ke umshini we-titanium udinga izinto zokufaka ezikhethekile namajometri.
4. Isakhiwo sethuluzi esilungele ukwenziwa kwe-titanium machining
Okugxilwe kukho kokucubungula i-titanium alloy ukushisa. Inani elikhulu loketshezi lokusika olunomfutho ophezulu kufanele lufafazwe onqenqemeni lokusika ngesikhathi nangendlela enembile ukuze kususwe ukushisa ngokushesha. Kunezinhlaka ezihlukile zabasiki bokugaya ezisetshenziselwa ngokukhethekile ukucubungula i-titanium alloy emakethe.
Isikhathi sokuthumela: Aug-09-2023
