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Masiku ano, pafupifupi onse olondola laser kudula zitsulo ndi sanali zitsulo ikuchitika pogwiritsa ntchito zida okonzeka ndi CHIKWANGWANI lasers kapena ultrashort pulse (USP) lasers, kapena nthawi zina onse awiri.M'nkhani ino, tifotokoza ubwino osiyana lasers awiri ndi kuona mmene opanga onse ntchito lasers izi.NPX Medical (Plymouth, MN) ndi mgwirizano wapadera zipangizo pokonza zipangizo zosiyanasiyana, kupanga zipangizo zosiyanasiyana steflex, kupanga ndi deplop bing, pogwiritsa ntchito makina omwe amaphatikizapo fiber lasers.Motion Dynamics imapanga ma subassemblies, monga misonkhano ya "kukoka waya" yomwe imagwiritsidwa ntchito makamaka mu ubongo, pogwiritsa ntchito makina omwe amaphatikizapo USP femtosecond laser ndi imodzi mwa machitidwe atsopano osakanizidwa kuphatikizapo femtosecond ndi fiber lasers kuti athe kusinthasintha kwakukulu ndi kusinthasintha.
Kwa zaka zambiri, laser micromachining yambiri yakhala ikugwiritsidwa ntchito pogwiritsa ntchito ma lasers olimba a state nanosecond otchedwa DPSS lasers. ward mphamvu scalability.Izi zimabweretsa lasers kuti ndi yaying'ono, odalirika kwambiri, ndi zosavuta kaphatikizidwe mu makina apadera, ndipo zambiri kupereka mtengo wotsika umwini kuposa akale laser types.Importantly kwa micromachining, mtengo linanena bungwe likhoza kuyang'ana mu ang'onoang'ono, woyera malo a ma microns ochepa m'mimba mwake, kotero iwo ndi abwino kwa mkulu-kusamvana kwa umwini ndi okhotakhota, kuwotcherera ndi flexible kudula, kuwotcherera ndi flexible. kuchokera kuwombera kamodzi kufika 170 kHz.Pamodzi ndi mphamvu scalable, izi zimathandiza mofulumira kudula ndi kubowola.
Komabe, kuipa kwa fiber lasers mu micromachining ndiko kupanga zinthu zing'onozing'ono ndi/kapena zoonda, zofewa. Kutalika (mwachitsanzo, 50 µs) kugunda kwa nthawi kumapangitsa kuti pakhale kutentha pang'ono komwe kumakhudzidwa (HAZ) monga zinthu zowonongeka ndi zovuta zazing'ono, zomwe zingafunike pambuyo pokonza laser, mwamwayi laser laser d zotulutsa zotulutsa-kuchotsa vuto la HAZ.
Ndi ma USP lasers, kutentha kowonjezera komwe kumakhudzana ndi kudula kapena kubowola kumatengedwa mu zinyalala zotayidwa musanakhale ndi nthawi yofalikira muzinthu zozungulira.USP lasers yokhala ndi picosecond linanena bungwe kwa nthawi yaitali ntchito micromachining okhudza mapulasitiki, semiconductors, zoumba, ndi zitsulo zina (picoseconds = 10-12 zitsulo zitsulo ndi zitsulo picosecond zitsulo, 10-12 zitsulo) mal conductivity ndi kukula ting'onoting'ono kumatanthauza kuti picosecond lasers samapereka zotsatira zowongoka zomwe zingavomereze kuwonjezereka kwa mtengo wa lasers oyambirira a USP. Izi tsopano zasintha ndi kubwera kwa mafakitale grade femtosecond lasers (femtosecond = masekondi 10-15) . Zomwe zimagwiritsidwa ntchito pazida zamankhwala, kuphatikizapo zitsulo zosapanga dzimbiri, platinamu, golidi, magnesium, cobalt-chromium, titaniyamu, ndi zina zambiri, komanso zopanda zitsulo.Ngakhale kuphatikizika kwafupipafupi kwafupipafupi ndi mphamvu yochepa ya pulse kumalepheretsa kuwonongeka kwa kutentha (HAZ), kubwereza kwapamwamba (MHz) kumapangitsa kuti pakhale zotsika mtengo zogwiritsira ntchito zipangizo zamakono zamakono.
Inde, pafupifupi palibe m'makampani athu omwe amafunikira laser imodzi yokha.M'malo mwake, amafunikira makina opangidwa ndi laser, ndipo tsopano pali makina ambiri apadera omwe amakongoletsedwa ndi kudula ndi kubowola zipangizo zamankhwala.Chitsanzo ndi Coherent's StarCut Tube series, yomwe ingagwiritsidwe ntchito ndi lasers fiber, femtosecond lasers, kapena ngati mtundu wosakanizidwa womwe umaphatikizapo mitundu yonse ya laser.
Kodi luso lazachipatala limatanthauza chiyani?Zambiri mwa zipangizozi zimapangidwa m'magulu ochepa malinga ndi mapangidwe achikhalidwe.Choncho, kusinthasintha ndi kugwiritsira ntchito mosavuta ndizofunika kwambiri.Ngakhale kuti zipangizo zambiri zimapangidwa kuchokera ku billets, zigawo zina ziyenera kukhala zolondola kuchokera ku mapepala apamwamba;makina omwewo ayenera kugwira zonse ziwiri kuti awonjezere mtengo wake.Zosowa izi nthawi zambiri zimakumana ndi kupereka maulendo angapo a CNC olamulidwa (xyz ndi rotary) ndi HMI yosavuta kugwiritsa ntchito pulogalamu yophweka ndi kulamulira.Pankhani ya StarCut Tube, njira yatsopano yotsegulira chubu imabwera ndi magazini yotsegula pambali (yotchedwa StarFeed) ya machubu mpaka 3 m kutalika kwa mankhwala odulidwa, kupanga makina opangidwa ndi makina opangidwa ndi automa.
The ndondomeko kusinthasintha kwa makinawa ndi zina kumatheka ndi thandizo kwa chonyowa ndi youma kudula ndi mosavuta chosinthika nozzles yobereka kwa njira amafuna kuthandiza gas.Spatial kusamvana ndi yofunikanso makamaka machining mbali yaing'ono kwambiri, kutanthauza kuti kukhazikika thermomechanical kumathetsa zotsatira za kugwedezeka nthawi zambiri amakumana mu masitolo makina.The StarCut Tube osiyanasiyana amakwaniritsa chosowa ichi ndi kumanga chiwerengero chachikulu cha granite deck.
NPX Medical ndi wopanga mgwirizano watsopano wopereka mapangidwe, uinjiniya ndi ntchito zodulira zolondola za laser kwa opanga zida zamankhwala. Yakhazikitsidwa mu 2019, kampaniyo yapanga mbiri mumakampani opanga zinthu zabwino komanso kuyankha, kuthandizira zida zosiyanasiyana kuphatikiza ma stents, implants, ma valve stents ndi machubu osinthika operekera opaleshoni yofananira, njira zapakatikati, zotumphukira zamtima, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, zotumphukira zamitsempha, mitsempha yamagazi ndi mitsempha yamagazi. laser cutter yake yayikulu ndi StarCut Tube 2 + 2Â yokhala ndi StarFiber 320FC yokhala ndi mphamvu yapakati pa ma watts 200. Mike Brenzel, m'modzi mwa omwe adayambitsa NPX, adalongosola kuti "oyambitsa amabweretsa zaka zaukadaulo wopanga zida zachipatala ndi luso lopanga - zaka zopitilira 90 zonse", ndi zokumana nazo zam'mbuyomu zomwe timagwiritsa ntchito makina odulira ulusi wa Nitinoti kale. Pazida monga machubu olimba-mipanda ndi mavavu amtima, timafunikira liwiro, ndipo laser ya USP ikhoza kukhala yochedwa kwambiri pazosowa zathu. Kuphatikiza pa malamulo opangira ma voliyumu apamwamba - timakhazikika pamagawo ang'onoang'ono - pakati pa zidutswa 5 mpaka 150 - cholinga chathu ndikumaliza kutembenuka kwamagulu ang'onoang'ono m'masiku ochepa chabe, kuphatikiza kupanga, kupanga, kukonza, kuyitanitsa, kuyitanitsa, kuyitanitsa, kuyitanitsa, kuyitanitsa ndi kutumiza. makampani akuluakulu. ”Kuphatikiza pa kutchula liwiro, Brenzel adati kudalirika kwa makinawo ndi mwayi waukulu, osafunikira kuyimba foni kamodzi m'miyezi 18 yapitayi yogwira ntchito mosalekeza.
Chithunzi 2. NPX imapereka njira zosiyanasiyana zotsatiridwa pambuyo pokonza.Zinthu zomwe zikuwonetsedwa apa ndi T316 zitsulo zosapanga dzimbiri ndi 5mm OD ndi makulidwe a khoma la 0.254mm. Mbali yakumanzere imadulidwa / microblasted ndipo mbali yoyenera ndi electropolished.
Kuphatikiza pa zigawo za nitinol, kampaniyo imagwiritsanso ntchito kwambiri cobalt-chromium alloys, tantalum alloys, titaniyamu alloys ndi mitundu yambiri yazitsulo zosapanga dzimbiri zamankhwala.Jeff Hansen, Laser Processing Manager, akufotokoza kuti: "Kusinthasintha kwa makina ndi chinthu china chofunika kwambiri, chomwe chimatilola kuthandizira kudula kwa mitundu yosiyanasiyana ya zipangizo, kuphatikizapo chubu ndi lathyathyathya.Titha kuyang'ana mtengowo mpaka 20-micron malo, omwe ndi othandiza pa machubu a Thin ndi othandiza kwambiri.Ena mwa machubuwa ndi 0.012 ″ ID yokha, ndipo kuchuluka kwamphamvu kwambiri mpaka mphamvu yapakati pa ma lasers aposachedwa kwambiri kumakulitsa liwiro lathu lodulira pomwe tikupereka mtundu womwe tikufuna.Timafunikira liwiro lazinthu zazikulu zokhala ndi mainchesi akunja mpaka inchi imodzi. ”
Kuphatikiza pa kudula mwatsatanetsatane komanso kuyankha mwachangu, NPX imaperekanso umisiri wathunthu wamakasitomala, komanso ntchito zambiri zamapangidwe zomwe zimathandizira luso lake mumakampani. Njirazi ndi monga electropolishing, sandblasting, pickling, laser kuwotcherera, kuyika kutentha, kupanga, passivation, kuyezetsa kutentha kwa Af, ndi kuyezetsa kutopa, zonse zomwe ndizofunika kwambiri pakuwongolera makina opangira makina a Bredge. , “kaŵirikaŵiri zimadalira ngati tikukamba za kutopa kwambiri kapena kutopa kwambiri.Mwachitsanzo, gawo lotopa kwambiri ngati valavu yamtima limatha kupindika nthawi biliyoni imodzi pa moyo wake ngati pomaliza kukonza Monga sitepe, ndikofunikira kugwiritsa ntchito sandblasting kuti muwonjezere utali wa mbali zonse.Koma zida zotopa pang'ono monga njira zoperekera kapena zowongolera nthawi zambiri sizimafuna kukonzanso kwakanthawi. ”Pankhani ya luso la mapangidwe, Brenzel akufotokoza kuti, tsopano pali ochuluka monga magawo atatu mwa atatu a makasitomala amagwiritsanso ntchito ntchito zawo zojambula kuti apindule ndi thandizo la NPX ndi luso lopeza chilolezo cha FDA. Kampaniyi ndi yabwino kwambiri potembenuza lingaliro la "chopukutira" kukhala mankhwala mu mawonekedwe ake omaliza mu nthawi yochepa.
Motion Dynamics (Fruitport, MI) ndi opanga akasupe ang'onoang'ono, ma koyilo azachipatala ndi mawaya omwe cholinga chake ndikuthana ndi mavuto a makasitomala, ngakhale atakhala ovuta bwanji kapena akuwoneka ngati zosatheka, mu nthawi yaifupi kwambiri yotheka.
Monga tanenera kale, kusankha kwa fiber kapena USP laser ndi nkhani yokonda uinjiniya komanso mtundu wa zida ndi njira zomwe zimathandizidwa.Chris Witham, Purezidenti wa Motion Dynamics, adalongosola kuti: "Kutengera chitsanzo cha bizinesi chomwe chimayang'ana kwambiri pa mankhwala a mitsempha ya mitsempha, tikhoza kupereka zotsatira zosiyana pa mapangidwe, machitidwe ndi ntchito.Timangogwiritsa ntchito laser kudula kuti tipange zinthu zomwe timagwiritsa ntchito m'nyumba., kupanga zigawo zamtengo wapatali, "zovuta" zomwe zakhala zapadera ndi mbiri yathu;sitimapereka laser kudula ngati ntchito ya mgwirizano.Tapeza kuti mabala ambiri a laser omwe timachita amapangidwa bwino ndi ma USP lasers, ndipo kwa zaka zambiri ndakhala ndikugwiritsa ntchito StarCut Tube ndi imodzi mwa ma lasers awa.Chifukwa cha kufunikira kwakukulu kwa zinthu zathu, timakhala ndi magawo awiri a maola 8 patsiku, nthawi zina ngakhale masinthidwe atatu, ndipo mu 2019 tifunika kupeza StarCut Tube ina kuti ithandizire Kukula uku.Koma nthawi ino, tinaganiza zopita ndi imodzi mwa mitundu yatsopano yosakanizidwa ya femtosecond USP lasers ndi fiber lasers.Tidaziphatikizanso ndi chojambulira/chotsitsa cha StarFeed kuti titha kusintha makinawo - wogwiritsa ntchito amangoyika opanda kanthu Chubu chimayikidwa mu feeder ndipo pulogalamu yogwiritsira ntchito pulogalamuyo imayamba.
Chithunzi 3. Chubu choperekera zitsulo zosapanga dzimbiri (chowonetsedwa pafupi ndi chofufutira cha pensulo) chadulidwa ndi laser ya Monaco femtosecond.
Witham akuwonjezera kuti ngakhale kuti nthawi zina amagwiritsa ntchito makinawo kudula lathyathyathya, oposa 95 peresenti ya nthawi yawo amathera kulenga kapena kusintha mankhwala cylindrical kwa misonkhano yawo steerable catheter, monga hypotubes, koyilo ndi spirals, kuphatikizapo kudula mbiri nsonga ndi Dulani mabowo. golide, platinamu ndi nitinol.
Chithunzi 4. Motion Dynamics imagwiritsanso ntchito kuwotcherera kwa laser kwambiri.Pamwambapa, koyiloyo yalumikizidwa ku chubu chodulidwa cha laser.
Kodi njira za laser ndi ziti?Witham adalongosola kuti mtundu wabwino kwambiri wam'mphepete ndi ma kerfs ochepa ndizofunikira kwambiri pazigawo zawo zambiri, kotero poyambirira adakonda ma laser a USP.Kuphatikiza apo, palibe zida zomwe kampaniyo imagwiritsa ntchito zitha kudulidwa ndi imodzi mwa ma laser awa, kuphatikiza tinthu tating'ono tagolide tomwe amagwiritsidwa ntchito ngati zolembera za radiopaque muzinthu zina zake. kukayika kuti ma fiber optics angapereke maulendo apamwamba, "adatero. "Koma chifukwa cha ntchito yathu yapadera, izi nthawi zambiri zimatanthawuza mtundu wina wa post-processing, monga mankhwala ndi ultrasonic kuyeretsa kapena electropolishing.Chifukwa chake kukhala ndi makina osakanizidwa kumatilola kusankha njira yonse - USP yokha kapena fiber ndi post-processing Handling - Optimum pagawo lililonse.Zimatilola kuti tifufuze kuthekera kwa makina osakanizidwa a gawo lomwelo, makamaka komwe ma diameter akulu ndi makulidwe a khoma amakhudzidwa: ngakhale kudula mwachangu ndi ma lasers, Kenako gwiritsani ntchito femtosecond laser kudula bwino.Akuyembekeza kuti laser ya USP ikhalabe chisankho chawo choyamba chifukwa kudula kwawo kwa laser kumakhudza makulidwe a khoma pakati pa 4 ndi 6 iwe, ngakhale amakumana ndi makulidwe a khoma kuyambira 1-20 iwe.Mipope yachitsulo chosapanga dzimbiri pakati pa inu.
Pomaliza, laser kudula ndi pobowola ndi njira kiyi popanga zipangizo zosiyanasiyana zachipatala.Today, chifukwa cha kupita patsogolo mu luso laser pachimake ndi makina kwambiri wokometsedwa kukhazikitsidwa kwa zosowa zenizeni za makampani, njira zimenezi n'zosavuta kugwiritsa ntchito ndi kupereka zotsatira zabwino kuposa kale.