I-Mesoscale Manufacturing / Mesomanufacturing

Ngamasu okukhiqiza avamile sikhiqiza izakhiwo "ze-macroscale" ezinkulu futhi ezibonakala ngeso lenyama. With MESOMANUFACTURING noma kunjalo sikhiqiza izingxenye zamadivayisi amancane. I-Mesomanufacturing nayo ibizwa ngokuthi MESOSCALE MANUFACTURING or_cc75c5de-MESOSCALE MANUFACTURING or_cc7545de-MESOSCA I-Mesomanufacturing idlula kokubili ukwenziwa kwe-macro kanye ne-micromanufacturing. Izibonelo ze-mesomanufacturing izisiza-kuzwa, ama-stents, izinjini ezincane kakhulu.

 

 

 

Indlela yokuqala yokwenza i-mesomanufacturing ukwehlisa izinqubo ze-macromanufacturing. Isibonelo i-lathe encane enobukhulu kumamilimitha ambalwa kanye nenjini engu-1.5W enesisindo esingamagremu angu-100 iyisibonelo esihle sokwenza i-mesomanufacturing lapho ukwehliswa kwehle kwenzeke khona. Indlela yesibili ukukhuphula izinqubo ze-micromanufacturing. Njengesibonelo izinqubo ze-LIGA zingakhushulwa futhi zingene endaweni ye-mesomanufacturing.

 

 

 

Izinqubo zethu zokukhiqiza i-mesomanufacturing zivala igebe phakathi kwezinqubo ze-MEMS ezisekelwe ku-silicon kanye nomshini omncane ovamile. Izinqubo ze-Mesoscale zingakha izingxenye ezinezinhlangothi ezimbili noma ezintathu ezinezici zosayizi we-micron ezintweni ezivamile ezifana nezinsimbi ezingenasici, izitsha zobumba, nengilazi. Izinqubo zokukhiqiza i-Mesomanufacturing ezitholakala kithi njengamanje zifaka phakathi, i-focused ion beam (FIB) sputtering, micro-milling, micro-turning, excimer laser ablation, femto-second laser ablation, kanye ne-micro electro-discharge (EDM) machining. Lezi zinqubo ze-mesoscale zisebenzisa ubuchwepheshe bemishini obukhiphayo (okungukuthi, ukususwa kwezinto), kuyilapho inqubo ye-LIGA, iyinqubo ye-mesoscale engeziwe. Izinqubo ze-Mesomanufacturing zinamakhono ahlukene kanye nokucaciswa kokusebenza. Ukucaciswa kokusebenza komshini kwentshisekelo kuhlanganisa usayizi wesici obuncane, ukubekezelelana kwesici, ukunemba kwendawo, ukuphela kwendawo, nezinga lokususwa kwezinto (MRR). Sinekhono lezinto ze-mesomanufacturing electro-mechanical ezidinga izingxenye ze-mesoscale. Izingxenye ze-mesoscale ezakhiwe ngezinqubo zokukhiqiza i-mesomanufacturing zinezici ezihlukile ze-tribological ngenxa yezinhlobonhlobo zezinto kanye nezimo ezingaphezulu ezikhiqizwa izinqubo ezahlukene zokukhiqiza i-mesomanufacturing. Lobu buchwepheshe bomshini be-mesoscale obukhiphayo busilethela ukukhathazeka okuhlobene nokuhlanzeka, ukuhlanganisa, kanye ne-tribology. Inhlanzeko ibalulekile ekwenzeni i-mesomanufacturing ngoba ukungcola kwe-mesoscale nosayizi wezinhlayiyana zemfucumfucu ezidalwe ngesikhathi senqubo ye-meso-machining zingaqhathaniswa nezici ze-mesoscale. I-Mesoscale Milling and Turning ingakha ama-chips nama-burrs angavimba izimbobo. I-Surface morphology kanye nezimo zokuqeda ingaphezulu ziyahlukahluka kuye ngendlela yokwenza i-mesomanufacturing. Izingxenye ze-Mesoscale kunzima ukuziphatha nokuqondanisa okwenza ukuhlanganisa kube inselele iningi labaqhudelana nabo elingakwazi ukuyinqoba. Izinga lethu lesivuno ku-mesomanufacturing liphezulu kakhulu kunesiqhudelana nabo okusinika inzuzo yokukwazi ukunikeza amanani angcono.

 

 

 

IZINQUBO ZOKUSEBENZA KWE-MESOSCALE: Amasu ethu amakhulu okwenza i-mesomanufacturing i-Focused Ion Beam (FIB), i-Micro-milling, ne-Micro-turning, i-laser meso-machining, i-Micro-EDM (i-electro-discharge machining)

 

 

 

Ukwenza i-Mesomanufacturing kusetshenziswa i-Ion Beam (FIB) egxilile, iMilling emincane, kanye ne-Micro-turning: I-FIB sputters material evela kucezu lokusebenza nge-Gallium ion beam bombardment. I-workpiece igibele isethi yezigaba ezinembayo futhi ibekwe ekamelweni le-vacuum ngaphansi komthombo we-Gallium. Izigaba zokuhumusha nezokuzungezisa ekamelweni le-vacuum zenza izindawo ezihlukahlukene emsebenzini zitholakale ku-Gallium ions ye-FIB mesomanufacturing. Inkambu kagesi eguqulekayo iskena i-beam ukuze ihlanganise indawo echazwe ngaphambilini. Amandla kagesi aphezulu abangela ukuthi umthombo wama-ion we-Gallium usheshe futhi ushayisane nomsebenzi. Ukushayisana kukhumula ama-athomu emsebenzini. Umphumela wenqubo ye-FIB meso-machining ingaba ukudalwa kwezingxenye ezime mpo eziseduze. Amanye ama-FIB atholakalayo kithi anobubanzi be-beam obuncane obungama-nanometers angu-5, okwenza i-FIB ibe umshini osebenza nge-mesoscale ngisho ne-microscale. Sikhweza amathuluzi okugaya amancane emishinini yokugaya enembayo eziteshini zomshini ze-aluminium. Ngokusebenzisa i-FIB singakwazi ukwenza amathuluzi aphenduphendukayo amancane angasetshenziswa ku-lathe ukwenza izinti ezinentambo emihle. Ngamanye amazwi, i-FIB ingasetshenziselwa ukwenza amathuluzi aqinile ngaphandle kwezici eziqondile ze-meso-machining emsebenzini wokugcina. Izinga lokuhamba kancane lokususa izinto linikeze i-FIB njengengasebenzi kahle ekwenzeni ngokuqondile izici ezinkulu. Amathuluzi aqinile, nokho, angasusa impahla ngenani elimangalisayo futhi aqinile ngokwanele amahora ambalwa esikhathi somshini. Noma kunjalo, i-FIB iyasebenziseka kumamomo-machining e-meso-machining aqondile amajamo amathathu-dimensional angadingi isilinganiso esikhulu sokususwa kwezinto. Ubude bokuchayeka kanye ne-engeli yesigameko kungathinta kakhulu i-geometry yezici ezenziwe ngomshini ngokuqondile.

 

 

 

I-Laser Mesomanufacturing: Ama-laser e-Excimer asetshenziselwa ukwenziwa kwe-mesomanufacturing. Imishini ye-laser excimer ibalulekile ngokuyishaya nge-nanosecond pulses yokukhanya kwe-ultraviolet. Umsebenzi ufakwe ezigabeni zokuhumusha ezinembayo. Isilawuli sixhumanisa ukunyakaza kocezu lomsebenzi ngokuhlobene ne-UV laser beam emile futhi sixhumanisa ukudubula kwama-pulses. Indlela yokuqagela yemaski ingasetshenziswa ukuchaza amajiyometri we-meso-machining. Imaski ifakwa engxenyeni enwetshiwe yomugqa lapho i-laser fluence iphansi kakhulu ukuthi ingashiswa imaski. Ijiyomethri yemaski ikhuliswa nge-lens futhi ikhonjiswe kucezu lomsebenzi. Le ndlela ingasetshenziselwa ukwenza izimbobo eziningi (ama-arrays) ngesikhathi esisodwa. Ama-laser ethu e-excimer kanye ne-YAG angasetshenziswa ukwenza ama-polymers, izitsha zobumba, ingilazi nezinsimbi ezinosayizi wesici abancane njengama-microns ayi-12. Ukuhlangana okuhle phakathi kwe-UV wavelength (248 nm) kanye nendawo yokusebenza ku-laser mesomanufacturing / meso-machining imiphumela ezindongeni zeshaneli eziqondile. Indlela ehlanzekile ye-laser meso-machining ukusebenzisa i-Ti-sapphire femtosecond laser. Imfucumfucu ebonakalayo evela kuzinqubo ezinjalo zokukhiqiza i-mesomanufacturing izinhlayiya ezinosayizi we-nano. Izici ezijulile zosayizi we-micron eyodwa zingenziwa nge-microfabricated kusetshenziswa i-femtosecond laser. Inqubo yokukhishwa kwe-laser ye-femtosecond ihlukile ngoba igqabula amabhondi e-athomu esikhundleni sezinto ezikhipha ukushisa ngokushisa. Inqubo ye-femtosecond laser meso-machining / micromachining inendawo ekhethekile ekwenzeni i-mesomanufacturing ngoba ihlanzeke kakhudlwana, iyakwazi ukwenza i-micron, futhi ayiqondile ngokwezinto ezibonakalayo.

 

 

 

I-Mesomanufacturing isebenzisa i-Micro-EDM (i-electro-discharge machining): Imishini ye-Electro-discharge isusa izinto ngenqubo yokuguguleka kwenhlansi. Imishini yethu ye-micro-EDM ingakhiqiza izici ezincane njenge-25 microns. Kumshini wokucwilisa kanye nomshini we-EDM yocingo, izinto ezimbili ezibalulekile zokunquma usayizi wesici usayizi we-electrode kanye negebe elingaphezulu kwe-bum. Ama-Electrodes angaphezulu kwama-microns ayi-10 ububanzi kanye ne-over-bum njengoba kusetshenziswa ama-microns ambalwa. Ukudala i-electrode ene-geometry eyinkimbinkimbi yomshini we-EDM we-sinker kudinga ukwazi. Kokubili i-graphite nethusi zithandwa njengezinto ze-electrode. Enye indlela yokwenza i-electrode eyinkimbinkimbi ye-EDM yengxenye ye-mesoscale ukusebenzisa inqubo ye-LIGA. I-Copper, njenge-electrode material, ingafakwa ezibunjeni ze-LIGA. I-electrode ye-LIGA yethusi ingase ifakwe emshinini we-EDM wokucwilisa ukuze kwenziwe i-mesomafecturing ingxenye yento ehlukile njengensimbi engagqwali noma i-kovar.

 

 

 

Ayikho inqubo eyodwa yokwenza i-mesomanufacturing eyanele yonke imisebenzi. Ezinye izinqubo ze-mesoscale zifinyeleleka kakhulu kunezinye, kodwa inqubo ngayinye ine-niche yayo. Isikhathi esiningi sidinga izinto ezihlukahlukene ukuze sithuthukise ukusebenza kwezingxenye eziwumshini futhi sinethezekile ngezinto ezivamile ezifana nensimbi engagqwali ngoba lezi zinto zinomlando omude futhi zibonakala kahle kakhulu phakathi neminyaka. Izinqubo ze-Mesomanufacturing zisivumela ukuthi sisebenzise izinto zendabuko. Ubuchwepheshe bemishini ye-mesoscale obudonsayo bandisa isisekelo sethu sezinto ezibonakalayo. I-Galling ingase ibe yinkinga ngokuhlanganiswa okuthile kwezinto ezibonakalayo ekwenzeni i-mesomanufacturing. Inqubo ngayinye yokwenza ama-mesoscale machining ithinta ngendlela ehlukile ubulukhuni bendawo kanye nokuma kwe-morphology. Ukugaya okuncane kanye nokuphenduka okuncane kungase kukhiqize ama-burrs nezinhlayiyana ezingabangela izinkinga zemishini. I-Micro-EDM ingase ishiye isendlalelo sokuphinda sibe nezici ezithile zokuguga nokungqubuzana. Imiphumela yokungqubuzana phakathi kwezingxenye ze-mesoscale ingase ibe nezindawo ezilinganiselwe zokuxhumana futhi ayimodeli enembile ngamamodeli okuxhumana angaphezulu. Obunye ubuchwepheshe bemishini ye-mesoscale, obufana ne-micro-EDM, buvuthwe ngokufanelekile, ngokungafani nobunye, njenge-femtosecond laser meso-machining, esadinga ukuthuthukiswa okwengeziwe.