Mayelana Nokusika Komile

1. Yini ubuchwepheshe bokusika owomile
Ngokuthuthukiswa kokuqwashisa ngemvelo emhlabeni wonke kanye nezimfuneko eziqinile zemithetho neziqondiso zokuvikela imvelo, imiphumela engemihle Yokusika uketshezi emvelweni iya ngokuya iba sobala. Ngokwezibalo, eminyakeni engu-20 kamuva, izindleko Zokusika uketshezi zizoba ngaphansi kuka-3 % yezindleko zocezu lokusebenza.Njengamanje, emabhizinisini akhiqiza ukukhiqiza okuphezulu, izindleko zokunqamula ukuhlinzekwa koketshezi, ukunakekelwa kanye nokugaywa kabusha ndawonye zizobalelwa ku-13% -17% wezindleko zokukhiqiza isiqeshana sokusebenza, kanti izindleko zamathuluzi okusika zibalelwa ku-2% -5% kuphela. ,.Cishe u-22% wesamba sezindleko ezihlobene Nokusika uketshezi yizindleko Zokusika Ukwelashwa okuwuketshezi.Ukusika okomile kuwuhlobo lwendlela yomshini esetshenziselwa ukuvikela indawo ezungezile nokunciphisa izindleko ngaphandle kokusebenzisa Ukusika uketshezi ngokuqaphela nangaphandle kokupholisa.
Ukusika okomile akukona nje ukuyeka ukusebenzisa i-Cutting fluid, kodwa ukuqinisekisa ukusebenza kahle okuphezulu, izinga eliphezulu lomkhiqizo, ukuqina kwethuluzi eliphezulu nokuthembeka kwenqubo yokusika ngenkathi umisa ukusebenzisa i-Cutting fluid, okudinga ukusetshenziswa kwamathuluzi okusika ngokusebenza kahle.Amathuluzi omshini kanye izinsiza ezisizayo zithatha indawo yendima yokusika uketshezi ekusikeni kwendabuko ukuze kuzuzwe ukusika okomile kwangempela.2.Izici zobuchwepheshe bokusika owomile
① Ama-chips ahlanzekile, awangcoli, futhi kulula ukugaywa kabusha nokulahlwa kwawo.② Imishini yokusika ukudluliswa koketshezi, ukululama, ukuhlunga kanye nezindleko ezihambisanayo ziyagcinwa, uhlelo lokukhiqiza lwenziwa lula futhi nezindleko zokudonsa ziyancishiswa.③ The idivayisi yokuhlukanisa phakathi Uketshezi olusikayo namashiphu kanye nezinto zikagesi ezihambisanayo azifakwanga.Ithuluzi lomshini liminyene ngesakhiwo futhi lithatha indawo encane.④ Ngeke libangele ukungcoliswa kwemvelo.⑤ Ngeke libangele izingozi zokuphepha kanye nekhwalithi yezingozi ezihlobene Noketshezi Lokusika.
3. Mayelana namathuluzi okusika
① Ithuluzi lizoba nokumelana okuhle kakhulu kwezinga lokushisa eliphezulu futhi lingasebenza ngaphandle kokusika uketshezi.Ama-alloy amasha aqinile, izitsha zobumba ze-polycrystalline, nezinto ze-CBN yizinto ezikhethwayo zamathuluzi okusika okomile.② I-coefficient yokushayisana phakathi kwe-chip nethuluzi kufanele incishiswe ngangokunokwenzeka (indlela ephumelela kakhulu ukumboza indawo yethuluzi), iphelezelwe. ngesakhiwo esihle sethuluzi lokususa i-chip ukunciphisa ukunqwabelana kokushisa.③ Amathuluzi okusika okomile kufanele futhi abe namandla aphezulu kanye nokuqina komthelela kunamathuluzi okusika amanzi.
4. Izinto zamathuluzi
Izinto zokumbozaUkugqoka kusebenza njengesithiyo esishisayo ngoba kunomoya oshisayo ophansi kakhulu kune-substrate yamathuluzi nezinto zokusebenza.Ngakho-ke, lawa mathuluzi amunca ukushisa okuncane futhi angakwazi ukumelana namazinga okushisa aphakeme okusika.Kungakhathaliseki ukuthi ekuphenduleni noma ekugayweni, amathuluzi ahlanganisiwe avumela imingcele yokusika ephezulu ngaphandle kokunciphisa impilo yamathuluzi.Izimbozo ezincane zisebenza kangcono ngaphansi kokushintsha kwezinga lokushisa ngesikhathi sokusikwa komthelela uma kuqhathaniswa nokujiya.Lokhu kungenxa yokuthi ama-coatings amancane anengcindezi ephansi futhi ajwayele ukuqhekeka.Ukusika okomile kunganweba impilo yamathuluzi kufika ku-40%, yingakho izimbozo ezibonakalayo zivame ukusetshenziselwa ukumboza amathuluzi ayindilinga kanye nezinto zokugaya.
Ama-cermetCermets angakwazi ukumelana namazinga okushisa aphakeme okusika kunama-alloys aqinile avamile, kodwa awanakho ukumelana nomthelela wama-alloys aqinile, ukuqina phakathi nomshini ophakathi nendawo kuya osindayo, namandla ngesikhathi sejubane eliphansi kanye namazinga aphezulu okuphakelayo.Kodwa-ke, inezinga lokushisa eliphezulu elingcono kanye nokumelana nokugqoka ngaphansi kokusika okomile okunesivinini esikhulu, ubude besikhathi eside, kanye nokuqedwa okungcono kwendawo yokusebenza okucutshunguliwe.Uma isetshenziselwe ukucubungula izinto ezithambile nezibukekayo, iphinde ibe nokumelana okuhle nokwakhiwa kwe-chip kanye nekhwalithi enhle yangaphezulu.Ama-cermets azwela kakhulu ekucindezelekeni okubangelwa ukuphuka nokuphakelayo uma kuqhathaniswa nama-alloys aqinile angaboshiwe anezingubo ezingcono.Ngakho-ke, isetshenziswa kangcono kakhulu kuma-workpieces aqondile kanye nezimo eziqhubekayo zokusika ezinekhwalithi ephezulu.
izitsha zobumba
Ukuzinza, okukwazi ukucubungula ngesivinini esikhulu sokusika nokuhlala isikhathi eside.I-alumina ehlanzekile ingamelana namazinga okushisa aphakeme kakhulu, kodwa amandla ayo kanye nokuqina kwayo kuphansi kakhulu.Uma izimo zokusebenza zingezinhle, kulula ukuphuka.Ukwengeza ingxube ye-alumina noma i-titanium nitride kunganciphisa ukuzwela kwezitsha zobumba ukuze kuphuke, kuthuthukise ukuqina kwazo, futhi kuthuthukise ukumelana kwazo nomthelela.
I-CBN toolsI-CBN iyithuluzi eliqinile kakhulu, elifaneleka kakhulu umshini wokwenza izinto ezinobulukhuni obungaphezu kwe-HRC48.Inokuqina okuhle kakhulu kwezinga lokushisa eliphezulu - kufika ku-2000 ℃, nakuba inamandla omthelela aphezulu kanye nokumelana nokuphihlika kunommese weCeramic.

I-CBN ine-conductivity ephansi ye-thermal namandla acindezelayo aphezulu, futhi ingamelana nokushisa okusikayo okukhiqizwa isivinini esikhulu sokusika kanye ne-rake angle engalungile.Ngenxa yokushisa okuphezulu endaweni yokusika, i-workpiece material iyathambisa, esiza ukwakha ama-chips.
Endabeni yokuphenduka okomile okuqinile okuqinile, amathuluzi e-CBN avame ukusetshenziselwa ukufaka esikhundleni sezinqubo zokugaya ngenxa yekhono lawo lokuthola ukunemba okuphezulu nokuqeda phezulu.Amathuluzi e-CBN namathuluzi e-ceramic afanele ukujika okuqinile nokugaya ngesivinini esikhulu.
I-OPT yekhwalithi ephezulu ye-CBN yokufaka
Amathuluzi e-PCD
Ngokwesibonelo,Faka i-PCD,I-PCD yokugaya umsiki,PCD reamer.
  

Idayimane le-Polycrystalline, njengethuluzi elinzima kakhulu lokusika, aligugi.Ukushisela izingcezu ze-PCD kuma-hard alloy blades kungakhuphula amandla azo kanye nomthelela wokumelana nomthelela, futhi impilo yawo yamathuluzi iphindwe izikhathi eziyi-100 kune-hard alloy blades.
Nokho, ukuhlobana kwe-PCD yensimbi ku-Ferrous kwenza lolu hlobo lwethuluzi lukwazi ukucubungula izinto ezingezona ayoni kuphela.Ngaphezu kwalokho, i-PCD ayikwazi ukumelana namazinga okushisa aphezulu endaweni yokusika engaphezu kuka-600 ℃, ngakho-ke, ayikwazi ukusika izinto ezinobunzima obuphezulu kanye ne-ductility.
Amathuluzi e-PCD afaneleka ngokukhethekile ukucubungula izinsimbi ezingezona ayoni, ikakhulukazi ama-alloys e-silicon aphezulu anokungqubuzana okuqinile.Ukusebenzisa imiphetho ebukhali yokusika kanye nama-engeli amakhulu ukuze usike kahle lezi zinto, kunciphisa ukucindezela kokusika kanye nokwakhiwa kwe-chip.