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Namhlanje, phantse yonke i-laser echanekileyo yokusika isinyithi kunye ne-non-metals yenziwa kusetyenziswa izixhobo ezixhotyiswe nge-fiber lasers okanye i-ultrashort pulse (USP) lasers, okanye ngamanye amaxesha zombini. Kweli nqaku, siza kuchaza iingenelo ezahlukeneyo zeelaser ezimbini kwaye sibone indlela abavelisi bobabini abasebenzisa ngayo ezi lasers.NPX Medical (Plymouth, MN) yinkontileka ekhethekileyo yezixhobo zokucwangcisa izixhobo, i-deployment yezixhobo ezikhethekileyo, eyenza izixhobo ezikhethekileyo ze-steplant, i-implants, i-deploy kunye ne-tubing eguquguqukayo, usebenzisa oomatshini ababandakanya i-fiber lasers.I-Motion Dynamics ivelisa ii-subassemblies, ezifana ne-"pull wire" iindibano ezisetyenziswa ngokuyinhloko kwi-neurology, usebenzisa umatshini oquka i-USP femtosecond laser kunye nenye yeenkqubo ze-hybrid zamva nje ezibandakanya i-femtosecond kunye ne-fiber lasers ukwenzela ukuguquguquka okukhulu kunye ne-Versa flexibility.
Kwiminyaka emininzi, uninzi lwe-laser micromachining luye lwenziwa kusetyenziswa i-slid-state nanosecond lasers ebizwa ngokuba yi-DPSS lasers. Nangona kunjalo, oku kuye kwatshintsha ngokupheleleyo umbulelo kuphuhliso ezimbini ezahlukeneyo ngokupheleleyo, kwaye ke ngoko ziyancedisana, iindidi ze-laser.Originally ziphuhliselwe unxibelelwano, i-fiber lasers ziye zavuthwa zaba yi-workhorse materials processing lasers kumashishini amaninzi, ngokuphindaphindiweyo ngenxa yezizathu ezilula ze-waveleng. ulwakhiwo kunye namandla ngqo scalability.Oku kubangela lasers ukuba compact, ethembekileyo kakhulu, kwaye kulula ukudibanisa koomatshini ezikhethekileyo, kwaye ngokubanzi zibonelela ngexabiso eliphantsi lobunini ngaphezu iintlobo laser endala.Okubalulekileyo ngokuba micromachining, umqadi ophumayo unokujoliswa kwindawo encinci, ecocekileyo yemicrons ezimbalwa kuphela ububanzi, ngoko ke zilungele ukusika i-high-reso, i-flexible yokusika kunye ne-flexible yokusika i-welulding ephezulu. iyalawuleka, kunye namazinga e-pulse ukusuka kwi-shot eyodwa ukuya kwi-170 kHz. Kanye kunye namandla anokunyuka, oku kuxhasa ukusika ngokukhawuleza kunye nokubhola.
Nangona kunjalo, ukungonakali okunokwenzeka kwe-fiber lasers kwi-micromachining kukucutshungulwa kweempawu ezincinci kunye/okanye ezibhityileyo, iindawo ezithambileyo.Ixesha elide (umzekelo, i-50 µs) ipulse durations likhokelela kwindawo encinci echaphazelekileyo ubushushu (HAZ) njengesixhobo sokulahla kunye noburhabaxa obuncinci bomphetho, obunokufuna i-post-processing.Plaser femtosecond output pulses-ukuphelisa ingxaki HAZ.
Ngama-lasers e-USP, ubuninzi bobushushu obongezelelweyo obunxulumene nokusika okanye inkqubo yokugaya ithathwa kwi-debris ekhutshwayo ngaphambi kokuba ibe nexesha lokusabalalisa kwizinto ezijikelezileyo.I-laser ye-USP enemveliso ye-piccosecond sele isetyenziswe kwizicelo ze-micromachining ezibandakanya iiplastiki, i-semiconductors, i-ceramics, kunye neentsimbi ezithile (i-picoseconds = i-picoconds = i-picoconds = i-picoconds = i-10-pillars ye-2 yeenwele, kodwa ubukhulu besixhobo somntu 10-2) I-metal's conductivity ephezulu ye-thermal kunye nobukhulu obuncinci buthetha ukuba i-picosecond lasers ayisoloko ibonelela ngeziphumo eziphuculweyo eziza kulungelelanisa iindleko ezongeziweyo ze-USP lasers zangaphambili.Oku kutshintshile ngoku ngokufika kwe-industrial grade femtosecond lasers (femtosecond = 10-15 imizuzwana) .Umzekelo yi-Coherent Inc. kuthetha ukuba banokusika okanye baqhube zonke iintsimbi ezisetyenziselwa izixhobo zonyango, kubandakanywa insimbi engenasici, iplatinum, igolide, i-magnesium, i-cobalt-chromium, i-titanium, kunye nokunye, kunye nezinto ezingezizo iintsimbi.Ngelixa ukudibanisa kwexesha elifutshane le-pulse kunye ne-low pulse energy kuthintela umonakalo we-thermal (HAZ), i-high (MHz) isantya sokuphindaphinda i-high (MHz) i-repetitive rate kwi-high-speed-repetitive rate nge-high-speed-repetitive rate ngokusebenzisa izixhobo ezininzi ze-high-speed repetitive yeendleko zonyango.
Ngokuqinisekileyo, phantse akukho mntu kwishishini lethu ufuna i-laser enye kuphela.Kunokuba bafune umatshini osekelwe kwi-laser, kwaye ngoku kukho oomatshini abaninzi abakhethekileyo abalungiselelwe ukusika kunye nokugrumba izixhobo zonyango.Umzekelo yi-Coherent's StarCut Tube series, enokusetyenziswa nge-fiber lasers, i-laser ye-femtosecond, okanye njengenguqulo ye-hybride ebandakanya zombini iintlobo ze-laser.
Kuthetha ukuthini ubugcisa besixhobo sonyango?Uninzi lwezi zixhobo ziveliswa kwiibhetshi ezilinganiselweyo ezisekelwe kuyilo lwesiko.Ngoko ke, ukuguquguquka kunye nokulula kokusetyenziswa zizinto eziphambili zokuqwalaselwa.Ngelixa izixhobo ezininzi zenziwe ngeebhilidi, ezinye iinqununu kufuneka zichaneke zenziwe ngoomatshini kwiibhilithi ezicaba; umatshini ofanayo kufuneka uphathe zombini ukunyusa ixabiso layo.Ezi zidingo zidla ngokubonelelwa ngokubonelela nge-multi-axis CNC elawulwayo (xyz kunye ne-rotary) intshukumo kunye ne-HMI ehambelana nomsebenzisi weprogram elula kunye nokulawula.Kwimeko ye-StarCut Tube, imodyuli entsha yokulayishwa kwe-tube iza kunye nomagazini wokulayishwa kwecala (obizwa ngokuba yi-StarFeed) kwiityhubhu ukuya kwi-3 m ubude beemveliso ezisikiweyo kunye nemveliso ye-automa.
Ukuguquguquka kwenkqubo yaba matshini kuphuculwe ngakumbi ngenkxaso yokusika okumanzi kunye nokomileyo kunye nemibhobho yonikezelo elungelelanisiweyo ngokulula kwiinkqubo ezifuna uncedo lwe-gas.Isisombululo se-Spatial nayo ibaluleke kakhulu kwi-machining iindawo ezincinci kakhulu, nto leyo ethetha ukuba ukuzinza kwe-thermomechanical kuphelisa imiphumo ye-vibration edla ngokudibana nayo kwiivenkile zoomatshini.Uluhlu lwe-StarCut Tube luhlangabezana nale mfuno ngokwakha inani elikhulu le-granite yokusika.
I-NPX Medical ngumenzi wenkontileka entsha ngokufanelekileyo ebonelela ngokuyila, ubunjineli kunye neenkonzo ezichanekileyo zokusika i-laser kubakhiqizi bezixhobo zonyango.Eyasungulwa kwi-2019, inkampani iye yakha idumela kwishishini lemveliso yekhwalithi kunye nokuphendula, ukuxhasa uluhlu olubanzi lwezixhobo ezibandakanya i-stents, implants, i-valve stents kunye neetyhubhu zokuhambisa eziguquguqukayo ezifanayo ngeendlela ezahlukeneyo zotyando, ukungenelela kwe-neurovascular, i-spinal interventions, i-neurovascular interventions, ukunyanzeliswa kwe-spincardiac, i-spinal interventions, i-spinal interventions. i-gynecological, kunye nokuhlinzwa kwesisu.Iyona nto iphambili yokusika i-laser yi-StarCut Tube 2+2Â ene-StarFiber 320FC enegunya eliphakathi kwama-watts angama-200. UMike Brenzel, omnye wabasunguli be-NPX, wachaza ukuba "abaseki bazisa iminyaka yoyilo lwezixhobo zonyango kunye namava okuvelisa - ngaphezu kwe-90 iminyaka edlulileyo kwi-laser ye-fiber ye-laser. Umsebenzi ubandakanya ukusika iNitinol kwaye sele sisazi ukuba i-fiber lasers inokubonelela ngesantya kunye nomgangatho esiwudingayo. Kwizixhobo ezinjengeetyhubhu ezinodonga olungqingqwa kunye neevalvu zentliziyo, sifuna isantya, kwaye i-laser ye-USP inokucotha kakhulu kwiimfuno zethu. Ukongeza kwimiyalelo yokuvelisa umthamo ophezulu - sisebenza ngokukhethekileyo kwiibhetshi ezincinci zamacandelo - phakathi kwe-5 kunye ne-150 kuphela - injongo yethu kukugqiba ezi zincinci zincinci, ukusika iifom, ukusika iifom, ukusika, ukusika iintsuku ezimbalwa, ukusika iifom, ukujikeleza, ukusika, ukusika. emva kokulungiswa kunye nokuhlolwa, xa kuthelekiswa neeveki emva komyalelo wokufakwa kwiinkampani ezinkulu.
Umzobo 2. I-NPX inikezela ngeendlela ezahlukeneyo zokukhetha emva kokulungiswa.Izinto eziboniswe apha yi-T316 yensimbi engenasici kunye ne-5mm OD kunye ne-0.254mm yodonga lobukhulu.
Ukongeza kwiindawo ze-nitinol, inkampani iphinda isebenzise kakhulu i-cobalt-chromium alloys, i-tantalum alloys, i-titanium alloys kunye neentlobo ezininzi zeensimbi ezingenasici zonyango. UJeff Hansen, uMphathi we-Laser Processing Manager, uyachaza: "Ukuguquguquka komatshini yenye i-asethi ebalulekileyo, evumela ukuba sixhase ukusika uluhlu oluhluke kakhulu lwezinto eziphathekayo, kuquka i-micro2am kunye ne-flat. Iluncedo ngakumbi kwiityhubhu eziNcinci ziluncedo kakhulu yi-0.012 ″ ye-ID, kwaye umyinge ophezulu wamandla ukuya kwi-avareji yamandla e-laser yamva nje yonyusa isantya sethu sokusika ngelixa sinikezela ngomgangatho esiwufunayo.
Ukongeza kokuchaneka kokusikwa kunye nokuphendula ngokukhawuleza, i-NPX ikwabonelela ngoluhlu olupheleleyo lwetekhnoloji yasemva kokulungiswa, kunye neenkonzo zoyilo ezibanzi eziphakamisa amava ayo abanzi kwishishini.Ezi buchule bubandakanya i-electropolishing, i-sandblasting, pickling, i-laser welding, ukusetwa kobushushu, ukubumba, ukudlula, uvavanyo lobushushu be-Af, kunye novavanyo lokudinwa, zonke ezi zingundoqo zolawulo lwe-Nitinol. ukugqiba, uBrenzel uthe, "ngokuqhelekileyo kuxhomekeke ekubeni sithetha ngokudinwa okuphezulu okanye ukudinwa okuphantsi kwesicelo. Umzekelo, inxalenye ephezulu yokudinwa njengevalve yentliziyo inokugoba amaxesha ebhiliyoni ngexesha lokuphila kwayo njengenyathelo lokulungisa njengenyathelo, kubalulekile ukusebenzisa i-sandblasting ukunyusa i-radius yayo yonke imiphetho. Ngokumalunga nobuchule bokuyila, uBrenzel uyachaza, ngoku kukho abaninzi kwiikota ezintathu zabathengi nabo basebenzisa iinkonzo zabo zokuyila ukuze basebenzise uncedo lwe-NPX kunye nezakhono zokufumana imvume ye-FDA.Inkampani ilungile kakhulu ekuguquleni ingcamango "ye-napkin sketch" ibe yimveliso kwifom yayo yokugqibela ngexesha elifutshane.
I-Motion Dynamics (iFruitport, MI) ngumvelisi wemithombo emincinci yesiko, iikhoyili zonyango kunye neendibano zocingo ezinenjongo yokusombulula iingxaki zabathengi, kungakhathaliseki ukuba zintsonkothe ​​kangakanani okanye zibonakala zingenakwenzeka kangakanani na, ngexeshana elifutshane elinokwenzeka. iindibano.
Njengoko kukhankanyiwe ngaphambili, ukhetho lwefiber okanye i-USP laser ngumbandela wobunjineli obukhethwayo kunye nohlobo lwezixhobo kunye neenkqubo ezixhaswayo. UChris Witham, uMongameli weMotion Dynamics, wachaza: "Ngokusekwe kwimodeli yeshishini egxile kakhulu kwiimveliso ze-neurovascular, sinokuzisa iziphumo ezahlukeneyo kuyilo, ukuphunyezwa kunye nenkonzo. Okukhethekileyo kunye nodumo; asinikezeli nge-laser yokusika njengenkonzo yekhontrakthi Sifumene ukuba uninzi lokusikwa kwelaser esilwenzayo lwenziwa ngcono ngeelaser ze-USP, kwaye iminyaka emininzi bendisebenzisa i-StarCut Tube ngenye yezi lasers Ngenxa yemfuno emandla yeemveliso zethu, sineenguqu ezimbini zeeyure ezisi-8 ngosuku, kwaye ngamanye amaxesha sithatha isigqibo sokukhula nge-2019 enye yeemodeli ezintsha ezixubileyo ze-laser ze-femtosecond USP kunye ne-fiber lasers Siphinde sabhanqa kunye ne-StarFeed loader/unloader ukuze sikwazi ukuzenzela ngokupheleleyo ukusika - umqhubi ubeka nje into engenanto Ityhubhu ilayishwe kwi-feeder kwaye inkqubo yokusebenza yesoftware iqalisiwe.
Umzobo 3. Le ityhubhu yokuhambisa insimbi engenasici eguquguqukayo (eboniswe ecaleni kwerabha yepensile) inqunywe nge-laser ye-Monaco femtosecond.
U-Witham wongezelela ukuba ngelixa besebenzisa umatshini wokusika umcaba, ngaphezu kweepesenti ze-95 zexesha labo lichithwa ekudaleni okanye ekulungiseni iimveliso ze-cylindrical kwiindibano zabo ze-catheter ezijikelezayo, ezizezi, i-hypotubes, iikhoyili kunye ne-spirals, kuquka ukusika iingcebiso eziqingqiweyo kunye ne-Cut holes.Ezi zixhobo zisetyenziselwa ekugqibeleni kwiinkqubo ezifana nokususwa kwe-aneurysm ye-laser kunye nokususwa kwe-metal. insimbi engenasici, igolide ecocekileyo, iplatinum kunye nenitinol.
Umzobo 4. I-Motion Dynamics iphinda isebenzise i-laser welding ngokubanzi.Ngaphezulu, i-coil ifakwe kwi-tube yokusika i-laser.
Ziziphi iinketho ze-laser? U-Witham wachaza ukuba umgangatho obalaseleyo we-edge kunye nee-kerfs ezincinci zibaluleke kakhulu kuninzi lwamacandelo abo, ngoko ke bakhetha i-USP lasers.Ukwengeza, akukho nanye yezixhobo ezisetyenziswa yinkampani inokusikwa ngenye yezi lasers, kubandakanywa amacandelo amancinci egolide asetyenziswa njengeziphawuli ze-radiopaque kwezinye zeemveliso zayo. imiba. "Akukho mathandabuzo ukuba i-fiber optics inokubonelela ngesantya esiphezulu," watsho. "Kodwa ngenxa yokugxila kwisicelo sethu, oku ngokuqhelekileyo kuthetha uhlobo oluthile lwe-post-processing, njengokucoca iikhemikhali kunye ne-ultrasonic okanye i-electropolishing. Ngoko ke ukuba nomatshini we-hybride kusivumela ukuba sikhethe ukuba yeyiphi inkqubo yonke - i-USP yodwa okanye i-fiber kunye ne-post-processing Handling - I-Optimum yecandelo ngalinye. kunye nobukhulu bodonga bubandakanyekayo: nokusika ngokukhawuleza ngeelaser zefiber, emva koko sebenzisa i-laser ye-femtosecond ukusika kakuhle. Ulindele ukuba i-laser ye-USP iya kuhlala ilukhetho lwabo lokuqala kuba uninzi lokusikwa kwelaser lubandakanya ukutyeba kodonga phakathi kwe-4 kunye ne-6 wena, nangona bedibana nobukhulu bodonga ukusuka kwi-1-20 wena. Imibhobho yentsimbi engenasici phakathi kwakho.
Ukuqukumbela, ukusika i-laser kunye nokugrumba ziinkqubo eziphambili ekwenziweni kwezixhobo zonyango ezahlukeneyo.Namhlanje, ngenxa yenkqubela phambili kwi-teknoloji ye-laser engundoqo kunye noomatshini abaphuculwe kakhulu abalungiselelwe iimfuno ezithile zoshishino, ezi nkqubo zilula ukusebenzisa kwaye zinikeze iziphumo ezingcono kunanini ngaphambili.