11. Zeziphi iitekhnoloji zokunxiba ezichanekileyo kwivili lokusila kwisantya esiphezulu?
Impendulo: Okwangoku, obona bukhule ngakumbi ubuchwephesha bokunxiba ivili lokusila bu:
(1) ELID iteknoloji yokunxiba i-electrolytic kwi-intanethi;
(2) I-EDM yokugaya iteknoloji yokugqoka ivili;
(3) Ubugcisa bokunxiba ivili lokusila indebe;
(4) Iteknoloji yokubumba i-Electrolysis-mechanical composite
12. Yintoni ukugaya ngokuchanekileyo?Zama ukuchaza ngokufutshane umgaqo wokukhetha ivili lokusila ngokuchaneka kokusila kwevili eliqhelekileyo lokusila.
Impendulo: Ukugaya ngokuchanekileyo kubhekisela ekukhetheni ivili lokugaya elichanekileyo kumatshini wokugaya ngokuchanekileyo, kunye nokugqoka ngokucokisekileyo ivili lokugaya, iinkozo eziqhekezayo zineepropati ze-micro-edge kunye ne-contour.Amanqaku okusila alungile kakhulu, ukuphakama okushiyekileyo kuncinci kakhulu, kwaye umphumo wenqanaba lokusila elingenantlantsi longezwa, kunye nendlela yokugaya umphezulu kunye nokuchaneka komatshini we-1 ukuya kwi-0.1 mm kunye noburhabaxa bomhlaba we-Ra ye-0.2 ukuya kwi-0.025 mm ifunyenwe.
Umgaqo wokukhetha ivili lokusila ngokuchaneka kokusila kwevili eliqhelekileyo lokusila:
(1) I-abrasive yevili lokugaya elisetyenziswe ekusileni ngokuchanekileyo isekelwe kumgaqo wokuba lula ukuvelisa nokugcina i-micro-edge kunye ne-contour yayo.
(2) Ubungakanani besuntswana levili lokusila?Ukuqwalasela imiba yejometri yodwa, ubungakanani bamasuntswana evili lokusila, buncinci uburhabaxa bomphezulu bexabiso lokusila.Nangona kunjalo, xa i-particle abrasive ilungile kakhulu, kungekhona nje ukuba ivili lokusila livalwe ngokulula ngokusila i-debris, kodwa ukuba i-thermal conductivity ayilungile, iya kubangela ukutshisa kunye nezinye izinto kwi-faced surface, eya kwandisa uburhabaxa bomhlaba. ixabiso..
(3) Isidibanisi sevili lokugaya?Izibophelelo zamavili okugaya ziquka ii-resin, isinyithi, i-ceramics, njl., kunye ne-resin zisetyenziswa ngokubanzi.Kumavili okugaya ama-coarse-grained, ibhondi ye-vitrified ingasetyenziswa.Izibophelelo zesinyithi kunye ne-ceramic ziyinkalo ebalulekileyo yophando kwintsimi yokugaya ngokuchanekileyo.
13. Ziziphi iimpawu zokusila ngokuchaneka kunye namavili okusila anamandla?Indlela yokukhetha inani lokugaya?
Impendulo: Ezona mpawu ziphambili zokusila ivili lokugaya i-superabrasive zezi:
(1) Ingasetyenziselwa ukucubungula ubulukhuni obuphezulu obuphezulu kunye nesinyithi esine-brittleness ephezulu kunye nezinto ezingezo zentsimbi.
(2) Ubuchule obunamandla bokugaya, ukuchasana kakuhle, ukuqina okuphezulu, kunokugcina ukusebenza kokusila ixesha elide, amaxesha amancinci okunxiba, kulula ukugcina ubungakanani be-particle;kulula ukulawula ubungakanani bokusetyenzwa kunye nokuqaphela ukusetyenzwa kwe-automation.
(3) Amandla okugaya amancinci kwaye ubushushu bokugaya buphantsi, ukwenzela ukuba uxinzelelo lwangaphakathi luncitshiswe, akukho ziphene ezifana nokutshisa kunye nokuqhekeka, kunye nomgangatho owenziwe ngomatshini ulungile.Xa ivili lokusila idayimani lisila i-carbide enesamente, amandla ayo okusila kuphela yi-1/4 ukuya kwi-1/5 ye-silicon carbide eluhlaza.
(4) Ukusebenza okuphezulu kokugaya.Xa umatshini wokucoca i-alloys eqinile kunye ne-non-metallic hard and brittle materials, isantya sokususa isinyithi samavili okugaya idayimane singcono kune-cubic boron nitride grinding wheels;kodwa xa usenza intsimbi ekwazi ukumelana nobushushu, iialloyi zetitanium, intsimbi yokufa kunye nezinye izinto, amavili okusila e-cubic boron nitride aphezulu kakhulu kwivili lokusila idayimani.
(5) Iindleko zokulungisa ziphantsi.Ivili lokusila idayimane kunye nevili lokugaya i-boron nitride ye-cubic zibiza kakhulu, kodwa banobomi obude benkonzo kunye nokusebenza kakuhle okuphezulu, ngoko ke ixabiso lilonke liphantsi.
Superabrasive wheel grinding ivili lokusila ukhetho lwedosi:
(1) Isantya sokusila Isantya sokusila sevili lokusila ledayimani engeyiyo eyentsimbi lidla ngokuba yi-12 ~ 30m/s.Isantya sokusila yetyhubhu boron nitride ivili lokusila kunokuba phezulu kakhulu kunaleyo diamond yokusila ivili, kwaye ozikhethelayo 45-60m/s ikakhulu ngenxa uzinzo thermal ngcono cubic boron nitride abrasive.
(2) Ubunzulu bokugaya ngokuqhelekileyo yi-0.001 ukuya kwi-0.01 mm, enokuthi ikhethwe ngokwendlela yokugaya, ubukhulu be-particle abrasive, i-binder kunye neemeko zokupholisa.
(3) Isantya somsebenzi siqhelekile kwi-10-20m/min.
(4) Isantya sokutya sobude?Ngokubanzi 0.45 ~ 1.5m/min.
14. Yintoni ukugaya ngokucokisekileyo?Zama ukuchaza ngokufutshane indlela yayo, iimpawu kunye nokusetyenziswa kwayo.
Impendulo: Ukugaywa kwe-Ultra-precision kubhekiselele kwindlela yokugaya ivili lokusila ngokuchaneka kwe-machining engaphantsi kwe-0.1mm kunye noburhabaxa bomhlaba obungaphantsi kwe-Ra0.025mm., Izinto zentsimbi, iiseramikhi, iglasi kunye nezinye izinto eziqinileyo kunye neziqhekezayo.
Indlela yokusila echanekileyo kakhulu:
(1) Amasuntswana abrasive anokuthathwa njengomzimba olulastiki kunye nenkxaso ye-elastic kunye ne-rake enkulu ye-rake angle cut edge.Inkxaso ye-elastic yi-arhente ebophelelayo.Nangona amasuntswana abrasive anobulukhuni obuninzi kwaye ukonakala kwawo kuncinci kakhulu, eneneni asezi-elastomers.
(2) Ubunzulu bokusikwa komphetho wokusikwa kweenkozo ezirhabaxa ngokuthe ngcembe bunyuka ukusuka ku-zero, kwaye ke buyancipha kancinci ukuya ku-zero emva kokufikelela elona xabiso liphezulu.
(3) Yonke inkqubo yokudibanisa phakathi kweenkozo ezinqabileyo kunye ne-workpiece ilandelwa yi-elastic zone, indawo yeplastiki, indawo yokusika, indawo yeplastiki kunye ne-elastic zone.
(4) Kwi-ultra-precision grinding, isenzo se-micro-cutting, ukuhamba kweplastiki, isenzo sokutshatyalaliswa kwe-elastic kunye nesenzo se-sliding sibonakala ngokulandelelana ngokutshintsha kweemeko zokusika.Xa i-blade ibukhali kwaye inobunzulu obuthile bokugaya, i-micro-cutting effect inamandla;ukuba i-blade ayibukhali ngokwaneleyo, okanye ubunzulu bokugaya bunzulu kakhulu, ukuhamba kweplastiki, umonakalo we-elastic kunye nokutyibilika kuya kwenzeka.
Iimpawu zokuSila ezichanekileyo:
(1) Ukugaya okuchanekileyo yiprojekthi ecwangcisiweyo.
(2) Ivili lokugaya i-Superabrasive sisixhobo esiphambili sokugaya okuchanekileyo.
(3) Ukugaya okuchanekileyo luhlobo lwenkqubo yokusika i-ultra-micro.
Usetyenziso lokusila ngokuchaneka kakhulu:
(1) Ukugaya izinto zetsimbi ezifana nentsimbi kunye ne-alloys yayo, ngokukodwa isinyithi esiqinileyo esiye saphathwa ngokucima.
(2) Izinto eziqinileyo neziphukayo ezinokuthi zisetyenziswe ekusileni iintsimbi ezingezizo?Ngokomzekelo, i-ceramics, iglasi, i-quartz, izinto ze-semiconductor, izinto zamatye, njl.
(3) Okwangoku, kukho i-cylindrical grinders, i-surface grinders, i-grinders yangaphakathi, i-grinders yokulungelelanisa kunye nezinye i-ultra-precision grinders, ezisetyenziselwa ukugaya i-ultra-precision yezangqa zangaphandle, iindiza, imingxuma kunye neenkqubo zemingxuma.
(4) Ukuchaneka kwe-Ultra-precision yokusila kunye ne-ultra-precision ye-abrasive processing yamahhala iyancedisana.
15. Chaza ngokufutshane umgaqo kunye neempawu zesibuko se-ELID sokugaya.
Impendulo: Umgaqo wokugaya isibuko se-ELID: Ngexesha lenkqubo yokugaya, i-electrolytic grinding fluid igalelwe phakathi kwevili lokugaya kunye ne-electrode yesixhobo kunye ne-DC pulse current isetyenziswa, ukwenzela ukuba ibhondi yensimbi yevili lokugaya njengoko i-anode ine-anode. unyibiliko isiphumo kwaye ngokuthe ngcembe isuswe, ukuze The iinkozo abrasive ukuba azichatshazelwa electrolysis ziphuma kumphezulu ivili lokugaya.Ngenkqubela phambili yenkqubo ye-electrolysis, ifilimu ye-oxide eneepropati ze-insulating yenziwa ngokuthe ngcembe phezu kwevili lokugaya, ukuthintela ukuqhubeka kwenkqubo ye-electrolysis.Xa iinkozo ezirhabaxa zevili lokusila zigugile, ifilimu ye-passive Emva kokuchithwa yi-workpiece, inkqubo ye-electrolysis iyaqhubeka, kwaye umjikelezo uqala kwakhona, kwaye ivili lokugaya lihlala linxibe ngokuqhubekayo ngesenzo se-electrolysis ye-intanethi ukufumana. ukuphakama okuthe gqolo kokuphuma kweenkozo ezirhabaxa.
Iimpawu zokugaya i-ELID:
(1) Inkqubo yokusila inozinzo oluhle;
(2) Le ndlela yokunxiba ithintela ivili lokusila ledayimani ekubeni liguge ngokukhawuleza yaye iphucula umlinganiselo wokusetyenziswa kweziqhoboshi ezixabisekileyo;
(3) Indlela yokugqoka i-ELID yenza ukuba inkqubo yokugaya ibe nokulawulwa kakuhle;
(4) Ukusebenzisa indlela ye-ELID yokugaya, kulula ukufezekisa ukugaya kwesibuko, kwaye kunokunciphisa kakhulu ukuqhekeka okushiyekileyo kwezinto eziphezulu kakhulu ukuba zibe yinxalenye yomhlaba.
16. Yintoni ukucola ukutya okurhubuluzayo?Zama ithiyori yokudlulisa ubushushu obubilayo ukucacisa isenzeko sokuba iqondo lobushushu eliqhelekileyo lokucotha lisezantsi kakhulu kodwa kulula ukutshisa ngequbuliso.
Impendulo: I-Creep Feed Grinding inamagama amaninzi e-China kwixesha elidlulileyo, njengokugaya okunamandla, ukugaya umthwalo onzima, ukugaya i-creep, ukugaya, njl.Isici esahlukileyo sale nkqubo yireyithi yokutya ephantsi, malunga ne-10-3 ukuya kwi-10-2 amaxesha okugaya okuqhelekileyo.Ngokomzekelo, isantya se-workpiece sinokuba siphantsi njenge-0.2mm / s ngexesha lokugaya umphezulu, ngoko kuthiwa "ukucotha" ukugaya.Kodwa kwelinye icala, ubunzulu bokuqala bokusikwa bukhulu, malunga ne-100 ukuya kwi-1000 ngokuphindwe kabini kunokugaya okuqhelekileyo.Ngokomzekelo, ubunzulu bomda wokusikwa kwi-flat grinding inokufikelela kwi-20 ukuya kwi-30 mm.
Ngokwenkcazo-bungcali yokubilisa ubushushu obugqithiselayo kwinkalo yobunjineli be-thermal, yinkcazo yenzululwazi yeqondo lobushushu elicothayo eliqhelekileyo lokusila liphantsi kakhulu kodwa lidla ngokuthanda ukutsha ngesiquphe.Ngexesha lokugaya okucothayo, iimeko zokufudumeza kumphezulu wendawo yokusebenza kwindawo ye-arc kunye nomphezulu wocingo olushushu lwe-nickel oluntywiliselwe echibini ziyafana, kwaye ulwelo lokusila kwindawo ye-arc lunobushushu obubalulekileyo be-qlim. oko kunokubangela ukuba ifilimu ibilise.Ukusila kubhekisa ekusileni ubushushu q <> 120 ~ 130℃.
Oko kukuthi, kungakhathaliseki ukuba bukhulu kangakanani ubunzulu bokusika ngexesha lokugaya kancinci, nokuba yi-1mm, 10mm, 20mm okanye i-30mm, ukuba nje iimeko eziqhelekileyo zokugaya zidibene, ubushushu bomhlaba bomsebenzi kwindawo ye-arc buya ungadluli kwi-120 ~ 130 ℃, ekwasisizathu sokuba inkqubo yokucotha yokucotha yahlukile.Izinto eziluncedo phezu kokugaya okuqhelekileyo.Nangona kunjalo, le nzuzo ibalaseleyo yetekhnoloji yokucotha ngokucothayo ilahleka ngokulula ngenxa yokuxinana kobushushu obubalekayo.Ubuninzi bokuhamba kobushushu bokugaya q abuhambelani kuphela kwizinto ezininzi ezifana neempawu eziphathekayo kunye nomlinganiselo wokusika, kodwa kuxhomekeke kubukhali bomhlaba wevili lokugaya.Ngethuba nje imeko q ≥ qlim idibene, umphezulu we-workpiece kwindawo ye-arc iya kutshiswa ngokukhawuleza ngenxa yokugaya i-fluid engena kwi-film-forming state..
17. Ukuqhuba njani ukunxiba ngokuqhubekayo kwi-creep feed grinding?Ziziphi iingenelo zokunxiba rhoqo?
Impendulo: Into ebizwa ngokuba yi-continuous dressing ibhekisela kwindlela yokulungisa ngokutsha kunye nokulola ivili lokugaya ngelixa lisila.Ngendlela yokugqoka eqhubekayo, i-diamond rollers yokugqoka i-diamond ihlala idibanisa nevili lokugaya.Ukuze uqonde inkqubo eguquguqukayo yokugqoka ngokuqhubekayo ivili lokugaya kunye nembuyekezo eqhubekayo kwinkqubo yokugaya, kufuneka kusetyenziswe umatshini okhethekileyo oqhubekayo wokugaya.Inkqubo eguquguqukayo yokunxiba eqhubekayo iboniswa kuMfanekiso 2. Idayamitha yevili lokugaya lokuqala yi-ds1, idiameter ye-workpiece yi-dw1, kunye nedayamitha yerola yokunxiba yedayimani ngudr.Ngexesha lokugaya, ukuba i-radius ye-workpiece iyancipha ngesantya se-vfr, ngenxa yokugqoka okuqhubekayo, Ivili lokugaya kufuneka linqunyulwe kwi-workpiece yokugaya ngesantya se-v2 = vfr + vfrd, kwaye i-roller yokugqoka kufuneka inqunyulwe kwivili lokugaya isantya se-v1 = 2vfrd + vfr, ukwenzela ukuba indawo ye-roller yokugqoka kunye nevili lokugaya litshintshile.Ngoko ke, oomatshini bokugaya ukugqoka ngokuqhubekayo kwamavili okugaya kufuneka bakwazi ukwenza uhlengahlengiso olufanelekileyo kwezi parameters zejometri.
Izinto eziluncedo zokucheba rhoqo zininzi, ezinje:
1) Ixesha lokugaya, elilingana nje nexesha lokugqoka, liyancitshiswa, eliphucula ukusebenza kakuhle kokugaya;
2) Ubude obude bokugaya abusaxhomekeke ekugqokeni kwevili lokugaya, kodwa kubude obukhoyo bokugaya umatshini wokugaya;
3) Amandla athile okugaya ayancipha, amandla okugaya kunye nokushisa okusila kuyancitshiswa, kwaye inkqubo yokugaya izinzile.
18. Yintoni ukugaya ibhanti?Chaza ngokufutshane ukubunjwa kunye neempawu zebhanti ye-abrasive.
Impendulo: Ukugaya ibhanti ye-Abrasive yindlela yenkqubo yokugaya ibhande elihambayo elihambayo ekudibaneni nomsebenzi wokusebenzela ngendlela ehambelanayo ngokuhambelana nesimo somsebenzi.
Ibhanti ye-abrasive ikakhulu iqulunqwe ngamacandelo amathathu: i-matrix, i-binder kunye ne-abrasive.Imatrix yinkxaso yeenkozo ezirhabaxa kwaye inokwenziwa ngephepha, umqhaphu kunye nemicu yeekhemikhali.Izibophelelo ezisetyenziswa ngokuqhelekileyo ziquka iglu yezilwanyana, i-synthetic resin kunye nendibaniselwano yezi zimbini.Izibophelelo ezisetyenziswa ngokuqhelekileyo ziquka iglu yezilwanyana, i-synthetic resin kunye nendibaniselwano yezi zimbini.Iglue yezilwanyana inokumelana nokushisa okuphantsi, amandla aphantsi okudibanisa, kwaye ayinqandeki ukukhukuliseka ngokusika ulwelo, ngoko ingasetyenziselwa kuphela ukugaya okomileyo;i-synthetic resin binder inamandla okubopha okuphezulu kunye nokumelana nokunxiba okuphezulu, kufanelekile ukwenza amabhanti omsebenzi onzima ngesantya esiphezulu.I-abrasives yokwenza amabhande e-abrasive yi-corundum eqhelekileyo, emhlophe kunye ne-chromium equkethe i-corundum, i-crystal corundum enye, i-aluminium oxide, i-zirconium dioxide, i-silicon carbide eluhlaza kunye nomnyama, njl.
19. Ziziphi iindlela zokwahlula amabhanti abrasive?Ziziphi iingxaki ezivame ukwenzeka ekusileni ibhanti?
Impendulo: Ngokwendlela yokugaya, i-abrasive belt grinding inokwahlulwa ibe yintsimbi evaliweyo yokugaya kunye ne-abrasive belt grinding.Ibhanti yokusila i-Abrasive inokohlulwa ibe yintlobo yevili loqhagamshelwano, uhlobo lwepleyiti yenkxaso, uhlobo loqhagamshelwano lwamahhala kunye nohlobo loqhagamshelwano olukhululekileyo oludadayo ngokuhambelana nefom yoqhagamshelwano phakathi kwebhanti e-abrasive kunye ne-workpiece.
Iingxaki ezinokuthi zenzeke kwi-abrasive belt grilling: ukuvala, ukunamathela, kunye nokubetha.Ukongezelela, ibhande eliqhekezayo lihlala libonakala liqhekeza rhoqo, iimpawu zokugqoka kunye nezinye iziganeko ngexesha lokusetyenziswa.
20. Yintoni ukugaya i-ultrasonic vibration?Chaza ngokufutshane indlela kunye neempawu zokugaya i-ultrasonic vibration.
Impendulo: Ukugaya i-Ultrasonic yindlela yenkqubo esebenzisa i-vibration enyanzelweyo yevili lokugaya (okanye i-workpiece) kwinkqubo yokugaya.
Indlela yokugaya i-ultrasonic vibration: xa umthombo wamandla wemagnetizing wejenereyitha ye-ultrasonic uqalwa, i-ultrasonic frequency yangoku kunye ne-DC yangoku ye-magnetization inikezelwa kwi-nickel magnetostrictive transducer, kunye ne-alternating ultrasonic frequency magnetic field kunye nemagnetic field. kwikhoyili ye-transducer.I-polarized magnetic field ivumela i-transducer ukuba ivelise amandla okungcangcazela okude kwi-longitudinal mechanical vibration of frequency efanayo, ethi idluliselwe kwiphondo ngaxeshanye, kwaye i-amplitude ikhuliswe kwixabiso elimiselweyo ukutyhala i-resonant cutter bar yokusika i-vibration.I-transducer, uphondo, kunye nentonga ye-cutter zonke zihambelana ne-ultrasonic frequency output yi-generator, zenza inkqubo ye-resonance, kwaye indawo emiselweyo kufuneka ibe kwi-node yokufuduka.
Iimpawu: Ukugaya i-Ultrasonic kunokugcina iinkozo ezibukhali kwaye zithintele ukuvinjwa kwe-chip.Ngokuqhelekileyo, amandla okusika ancitshiswe ngama-30% ukuya kwi-60% xa kuthelekiswa nokugaya okuqhelekileyo, ukushisa kweqondo lokushisa kuncitshisiwe, kwaye ukusebenza kakuhle kokulungiswa kwanda nge-1 ukuya kwii-4 amaxesha.Ukongeza, ukugaya i-ultrasonic vibration nayo ineenzuzo zesakhiwo esincinci, ixabiso eliphantsi, kunye nokuthandwa ngokulula kunye nokusetyenziswa.
Ixesha lokuposa: Jul-30-2022