Izinhlelo zesimanje ze-laser — kusukela kuma-laser e-femtosecond pulse asetshenziswa ekuhlinzeni kwamehlo kanye nezinto zokucubungula okuncane kuya kuma-laser e-picosecond ku-semiconductor scribing kanye ne-ultrafast spectroscopy — kumele zibeke imisebe yazo kanye nezingxenye zokusebenza ngokunemba kwendawo okulinganiswe kuma-micrometer, ngezinye izikhathi ama-nanometer. I-physics yokukhanya ingaba yinhle kakhulu, kodwa imishini ebeka izigaba ze-optical kanye nezingxenye zokusebenza kumele ibe nembambo efanayo.
Kuwo wonke lo mkhakha wokusetshenziswa kokunemba kwe-laser, ingxenye eyodwa ivela ngokuphindaphindiwe: isigaba se-granite esithwala umoya. Inhlanganisela ebonakala iphikisana - idwala lasendulo elihlanganiswe nobuchwepheshe be-pneumatic bearing obusezingeni eliphezulu - isigaba se-granite esithwala umoya sesibe yindinganiso yangempela ezinhlelweni ze-laser ezinembile ngoba sixazulula, kangcono kunanoma iyiphi enye indlela, izinselele zobunjiniyela eziyisisekelo zokunyakaza okungenamshuduliswano, ukuhlukaniswa kokudlidliza, kanye nokuzinza kobukhulu.
Lesi sihloko sihlola izimiso zobunjiniyela ngemuva kwezigaba ze-granite ezithwala umoya, sichaza ukuthi kungani i-granite nama-air bearings akha ubudlelwano obukhiqizayo kangaka, futhi silandelela ukusetshenziswa kwawo kulo lonke uhlelo lwesimanje lwe-laser olunembile.
Ama-Air Bearings: Ukunyakaza Okungashukumi Esikalini Se-Nanometer
Ama-bearings ajwayelekile e-rolling element — amabhola noma ama-roller ahamba emigwaqweni yomjaho — ayizinto ezisebenza kakhulu ezinhlelweni zokunyakaza zemishini. Athembekile, aqinile, futhi ayakwazi ukuthwala umthwalo omningi. Kodwa anomkhawulo oyisisekelo: abonisa ukuziphatha okunamathelayo, ukunyakaza okuncane okungajwayelekile okwenzeka njengoba ukungqubuzana okungaguquki kunika indawo ukungqubuzana kwe-kinetic ngesikhathi sokunyakaza kokuqala, kanye njengoba ukungahambi kahle ezindaweni ezingqubuzanayo kuhlangana.
Ezikalini ze-macroscopic, ukushelela kwenduku kuyinkathazo encane. Esikalini se-nanometer, kuyisithiyo esiyisisekelo sokunyakaza okubushelelezi nokuphindaphindekayo. Uhlelo lokuma okumele lufinyelele ukuphindaphindeka kwe-nanometer eyi-10 alukwazi ukubekezelela i-bearing ebonisa ukushelela kwenduku kwe-nanometer eyi-100 ngesikhathi sokuqala ukunyakaza.
Ama-air bearings asusa ukushelela kwenduku ngokuphelele ngokufaka ifilimu yomoya encane ecindezelwe — ngokuvamile ubukhulu obuyi-5-15 micrometer — ehlukanisa ngokuphelele isigaba esinyakazayo endaweni yokubhekisela. Ngaphandle kokuthintana kwenduku, akukho ukungqubuzana ngomqondo ojwayelekile, akukho ukushelela kwenduku, futhi akukho ukuguguleka. Isigaba siyashelela emoyeni, futhi ukunyakaza kungaba bushelelezi futhi kuphindeke njengoba ukuqondile kwendawo yokubhekisela kuvumela.
Imiphumela yokunyakaza okunembile ijulile. Isigaba sokuthwala umoya singahamba ngokwanda kwama-nanometer ngokuphindaphinda okubeka inseleleimishini yokulinganisaisetshenziselwa ukuqinisekisa. Ijubane lingalawulwa libe ngaphezu kuka-0.01% ukufana ngesivinini esivela kuma-micrometer ngomzuzwana kuya kumamitha ngomzuzwana. I-bearing ngokwayo inikela ngokuyisisekelo ukuhlukahluka kwamandla okungekho phakathi kokuhamba kwayo - isici esibalulekile ezinhlelweni ze-laser lapho ukuphazamiseka kwamandla kungavusa khona ukuzwakala komshini kanye nesimo sokukhanya kwe-beam.
Kungani iGranite iyindawo efanelekile yokubhekisela ekuthwaleni umoya
Isigaba sokuthwala umoya sihle kuphela njengobuso obuhamba phezu kwabo. Ubuso obubhekiselwe kubo kumele buhlangabezane nezidingo eziningana ezidingakalayo ngasikhathi sinye.
Okokuqala, ukuba yisicaba. Ama-air bearings ayazwela emaphutheni okwakheka kobuso ngoba ubukhulu befilimu yomoya (ngokuvamile i-5–15 μm) bufana ngobukhulu nokubekezelelana kokuba yisicaba kobuso okungatholakala ekugayeni nasekuvaleni ngokunemba. Ukwehla kobuso okungu-1 μm kubangela ukushintshashintsha kwesikhala somoya okungu-1 μm - okuhumushela ngqo ephutheni lesikhundla sokuma esiqondile esingu-1 μm esigabeni. Ukuze uhlelo luqondise ukunemba okuqondile okungu-100-nanometer, ubuso bokubhekisela kumele bube yisicaba bube ngcono kakhulu kune-100 nanometers ngaphezu kobubanzi bokuhamba obugcwele.
Okwesibili, ubulukhuni bomphezulu. Ifilimu yomoya ebhereyini yomoya iqiniswa yizimpawu eziqinile zomoya ogeleza phakathi kwephedi yokuthwala kanye nomphezulu wokubhekisela. Ubulukhuni obukhulu bomphezulu buphazamisa ifilimu yomoya, kudala ukushintshashintsha kwengcindezi, futhi bungenise umsindo ekuhambeni kwesiteji. Amanani obulukhuni bomphezulu angaphansi kuka-Ra 0.05 μm (50 nanometers) ngokuvamile ayadingeka ukuze kusetshenziswe kahle kakhulu ukuthwala umoya.
Okwesithathu, ubulukhuni kanye nokumelana nokuguguleka. Nakuba ama-air bearings eklanyelwe ukugwema ukuthintana, ukuthintana ngezikhathi ezithile kungenzeka ngesikhathi sokuqalisa, ukuma okuphuthumayo, noma izehlakalo zokwehluleka kokunikezwa komoya. Indawo yokubhekisela kumele ibe nzima ngokwanele ukumelana nokuthola amaphuzu noma umonakalo ovela kulezi zehlakalo. I-Granite, enobulukhuni be-Mohs obungu-6-7 (obubangelwa kakhulu okuqukethwe yi-quartz), inikeza ukumelana nokuguguleka okungcono kakhulu kune-aluminium noma amapulasitiki amaningi, futhi ifana noma ingcono kunensimbi eqinile ngale njongo.
Okwesine, ukuzinza kokushisa. Igebe lomoya kubhereli lomoya liyipharamitha yejiyometri elawulwa kahle. Ukwanda kokushisa okushintsha igebe kushintsha ukuqina kwebhereli kanye nomthamo womthwalo — futhi kushintsha indawo yokubhekisela yesiteji. I-coefficient yokwanda kokushisa ye-granite ephansi futhi engaguquguquki, kuhlanganiswe nesisindo sayo sokushisa esiphakeme (ukusabela kancane ekushintsheni kokushisa), inikeza ukuzinza okudingwa izinhlelo ze-laser ezinembile.
Okwesihlanu, izakhiwo ezingezona ezikagesi kanye nezingezona eziqhuba ugesi. Izinhlelo eziningi zokubeka i-laser zisebenzisa ama-motor drive aqondile, akhiqiza amasimu kazibuthe. Isisekelo somshini we-ferromagnetic singasebenzisana nalawa masimu, sidale ukuphazamiseka kwamandla futhi singase sibangele ukuzulazula kokulinganisa njengoba umlando kazibuthe wezinto ushintsha. Isimo se-Granite esingezona ezikagesi, esingezona eziqhuba ugesi siqeda ngokuphelele lokhu kusebenzisana.
Izinhlelo ze-Laser ze-Femtosecond: Izidingo Ezinkulu Zokubeka Ngokunembile
Ama-laser e-Femtosecond akhiqiza ama-pulse amafushane kune-picosecond eyodwa — ingxenye yesigidi sesigidi sesekhondi. Kulezi zilinganiso zesikhathi, ukusebenzisana kwe-laser-matter kuhluke kakhulu ekucutshungulweni kwe-laser okuvamile: izinto ziyasuswa ngokushesha kangangokuthi ukushisa akunaso isikhathi sokusabalala ezintweni ezizungezile, okuvumela ukusika ngokunemba ngezindawo ezithintekile ekushiseni ezilinganiswa ngama-nanometers kune-millimeters.
Leli khono lisetshenziswa ekuhlinzeni i-cornea (i-LASIK), ukwenza i-micromachining ngokunemba kwezingxenye ze-elekthronikhi, ukwakheka kwezinto zokusetshenziswa kwe-photonics, kanye nokukhiqizwa kwemisebe ye-ultraviolet extreme (EUV) ye-lithography yesizukulwane esilandelayo. Ekusetshenzisweni ngakunye, indawo yokugxila kwe-laser maqondana nomsebenzi kumele ilawulwe ukuze ivumelane nobukhulu bendawo ye-laser - ngokuvamile ama-micrometer angu-1-10.
Ngakho-ke uhlelo lokubeka isigaba somsebenzi we-laser we-femtosecond kumele lufinyelele ukunemba okungu-1–10 μm phezu kwebanga lokuhamba elingafinyelela ku-300 mm noma ngaphezulu — ibanga eliguquguqukayo elingu-1:30,000 noma ngaphezulu. Kumelwe lwenze kanjalo ngokuqina kwejubane okuqinile ngokwanele ukukhiqiza ukujula kwesici esifanayo kulo lonke umsebenzi. Futhi kumele lufeze lokhu ngephakheji encane, ehambisana negumbi elihlanzekile elihlangana nohlelo lokulethwa kwe-optical lwe-laser.
Izigaba ze-granite ezithwala umoya zixazulula zonke lezi zidingo. I-air bearing inikeza ukunyakaza okubushelelezi, okungenamibango okudingekayo ukuze kube nesivinini esifanayo. Isisekelo se-granite sinikeza ukuba yisicaba nokuqina okudingekayo ukuze kube nokunemba. Ukuqina kokushisa kwesistimu ehlanganisiwe kugcina i-geometry ye-laser-to-workpiece njengoba imishini ifudumala futhi ifinyelela ukulingana.
Izinhlelo ze-Picosecond Laser ekukhiqizweni kwe-Electronics
Ama-laser e-Picosecond athatha indawo ephakathi phakathi kwama-laser e-nanosecond (ama-pulsed ajwayelekile) nama-laser e-femtosecond ngokwesikhathi sokushaya kwenhliziyo kanye nezici zokucubungula. Asetshenziswa kabanzi ekukhiqizweni kwama-elekthronikhi kwezicelo ezifaka phakathi i-PCB ngokubhoboza, ukubhala ngama-laser kwamaseli elanga amancane, ukusika ingilazi kanye ne-sapphire kwama-electronics abathengi, kanye nokubhala amakhodi okumaka kanye nokulandelela izingxenye ze-elekthronikhi.
Kulezi zinhlelo zokusebenza zezimboni, ukudlula kwamandla kubalulekile — uhlelo lokubeka kumele luhambe ngokushesha phakathi kwezici ngenkathi kugcinwa ukunemba okudingekayo ukuze kushayelwe imigomo endaweni efanele. Ukuhlanganiswa kwesivinini esiphezulu kanye nokunemba okuphezulu yilokho kanye izigaba zegranite ezithwala umoya ezilungiselelwe khona: ama-air bearings avumela isivinini esiphezulu ngaphandle kwephutha lejubane elibangelwa ukungqubuzana, kuyilapho ukuqina kanye nokufiphaza kwegranite kuvimbela ukuzwakala komshini okunganciphisa ukunemba ngesivinini esiphezulu.
Inzuzo eyengeziwe ezindaweni zokukhiqiza izinto zikagesi ukuphindaphindeka kwesistimu yokuthwala umoya phezu kwezigidigidi zemijikelezo yokunyakaza. Umshini wokubhoboza we-PCB ocubungula izinkulungwane zamabhodi ngosuku uqoqa inani elikhulu lemijikelezo phakathi nesikhathi sawo sokusebenza. Isici sama-air bearings angenawo ugesi sisho ukuthi ukunemba kwesistimu ngonyaka wesihlanu kufana nosuku lokuqala - isici esingenakuqhathaniswa nama-rolling element bearings, abonisa ukuguguleka okuqhubekayo kanye nokunemba okuwohlokayo ngokuhamba kwesikhathi.
Izinselele Zokuhlanganisa Nezixazululo
Ukuhlanganisa isigaba se-granite esithwala umoya ohlelweni lokunemba lwe-laser kuhilela izinto eziningana okufanele uzicabangele ngobunjiniyela ngale kwesigaba ngokwaso. Ukunikezwa komoya ohlanzekile, owomile ngengcindezi elawulwayo kuyadingeka — ngokuvamile kuhlungwe ukuze kuhlanzeke i-Class 0 kanye nokulawulwa kwengcindezi ku-±0.1% noma ngaphezulu. Uhlelo lokunikezwa komoya akumele lufake ukudlidliza noma ama-pulse okucindezela asakazeka esiteji. Ukulawulwa kwezinga lokushisa kokunikezwa komoya kuvimbela imiphumela yokwanda kokushisa njengoba umoya ocindezelwe udlula ohlelweni.
Isisekelo se-granite kumele sifakwe futhi sisekelwe ngendlela egcina ukuthamba kwaso ngaphansi komthwalo. Ukufakwa kwe-kinematic — kusetshenziswa amaphuzu amathathu okusekela ahlelwe ukuvimbela noma yikuphi ukuphambuka okucindezelwe ngokweqile — kuyindlela ejwayelekile. Izakhiwo zokusekela ngokwazo kumele zizinzile ngokushisa futhi zihlukaniswe nokudlidliza phansi kwesakhiwo.
Ukuphathwa kwekhebula lama-axes okunyakaza — ukuhambisa izintambo zikagesi, amasignali e-encoder, imigqa ye-pneumatic, kanye nemigqa ye-vacuum kuya esiteji esinyakazayo ngaphandle kokufaka amandla aphazamisa indawo yesiteji — kudinga ukwakheka ngokucophelela. Ama-motor aqondile anamuhla asusa ama-gearbox kanye nezikulufo zokushayela, okunciphisa kakhulu ukuphazamiseka kwamandla okungaphindwa okonakalisa ukunemba kokubeka.
Isiphetho
Izigaba ze-granite ezithwala umoya zimelela ifilosofi yokuklama: khetha ikhambi elingcono kakhulu elitholakalayo kuzo zonke izidingo zobunjiniyela, noma ngabe leso sixazululo sivela ohlangothini olungalindelekile. Ama-air bearings axazulula ukungqubuzana nokuguguleka esikalini se-nanometer ngezindlela ama-mechanical bearings angenakukwazi ngazo. I-granite ixazulula ukuzinza kobukhulu, ukudambisa ukudlidliza, kanye nekhwalithi yobuso ngezindlela izinsimbi ezingenakukwazi ngazo — okungenani hhayi ngaphandle kwezindleko eziphakeme kakhulu kanye nobunzima.
Le nhlanganisela izibonakalise eminyakeni eminingi yokusetshenziswa ezinhlelweni ze-laser ezinembile ezidinga kakhulu emhlabeni. Njengoba ubuchwepheshe be-laser buqhubeka nokuthuthuka — bubheke kuma-pulse amafushane, osayizi abancane bezindawo, kanye nokubekezelelana kwenqubo okuqinile — izigaba ze-granite ezisekela lezo zinhlelo kuzodingeka zithuthuke kanye nazo. Abakhiqizi abakwaziyo ukuletha ukunemba okudingekayo, okuqinisekisiwe nokuqinisekisiwe, bazohlala bengabalingani ababalulekile ekuthuthukisweni kobuchwepheshe be-laser.
Isikhathi sokuthunyelwe: Juni-30-2026