Anthu akamva 'micro metal injection molding', kapena MIM pang'ono pang'ono, lingaliro lapafupi nthawi zambiri limakhala la tizigawo tating'ono ting'onoting'ono, tambirimbiri. Ndizowona, koma ndipamenenso malingaliro olakwika oyamba amakhala. Sikungopanga zinthu zazing'ono; ndi kupanga zinthu zing'onozing'ono zomwe zimagwira ntchito m'dziko lenileni, mosasinthasintha, komanso popanda kuphwanya banki. Kusiyana pakati pa chojambula chomwe chimadabwitsa pa slide ya maikulosikopu ndi kupanga zidutswa 500,000 zomwe zimapulumuka msonkhano ndi ntchito ndipamene nkhani yeniyeni ili. Ndawona ma projekiti ambiri akupunthwa powatenga ngati mtundu wocheperako wa MIM wamba. Fiziki, chikhalidwe chakuthupi, malingaliro a zida - zonse zimasintha.
The Material Dance pa Micro Scale
Kugwira ntchito ndi feedstocks ya micro MIM ndi masewera ena a mpira. Mukuchita ndi ufa wabwino, nthawi zambiri pansi pa ma microns 10, ndipo makina omangira amakhala ovuta. Sikuti amangogwira ufa pamodzi; ndi za momwe zimadutsa pazipata ndi othamanga omwe angakhale 0.15mm m'lifupi. Poyamba tinali ndi pulojekiti yopangira zida zopangira opaleshoni pogwiritsa ntchito chitsulo chosapanga dzimbiri cha 316L. Zakudya zokhazikika sizingadzaze gawo lopanda mipanda modalirika. Tinayenera kugwirira ntchito limodzi ndi wogulitsa zinthu kuti tiwongolere rheology-zowonjezera zowonjezera sera-polymer binder-kuti tipeze kutuluka kwa laminar. Ndi mtundu uwu wa kutengeka kwa zinthu zomwe zimalekanitsa mapulojekiti opambana ndi omwe adalephera.
Debinding ndi sintering kukhala mkulu waya zochita. Ndi magawo ang'onoang'ono otere, chiwopsezo cha kusokonekera kapena kugwa panthawi yotentha ndi yayikulu. Mbiri ya kutentha mu ng'anjo iyenera kukhala yolondola kwambiri. Ndimakumbukira gulu la mabakiteriya a cobalt-chrome orthodontic pomwe tidawona kutsika pang'ono m'mabowo omangika titawotcha. Wolakwa? Kutentha kwapakati pagawo la sintering tray kumapangitsa kuti pakhale kusiyana kochepa pa kutentha. Zinatikakamiza kuti tikonzenso ma tray fixtures, osati gawolo. Ndizinthu zachiwiri izi zomwe zimawononga nthawi ya uinjiniya.
Apa ndipamene zokumana nazo ndi ma aloyi apadera, monga zomwe mumawona kuchokera ku purosesa yanthawi yayitali monga Malingaliro a kampani Qingdao Qiangsenyuan Technology Co., Ltd., zimakhala zofunikira. Iwo akhala akuponya ndi machining kwa zaka zambiri. Chidziwitso chakuya chakuthupi-momwe ma alloys opangidwa ndi nickel kapena cobalt amachitira pa kutentha ndi kupsinjika-amamasulira modabwitsa mukalowa mu MIM yaying'ono ndi ma aloyi omwewo. Si kutengerapo mwachindunji, koma kuti chibadwa metallurgical ndi ofunika kwambiri. Mutha kuyang'ana momwe amayendera kukhulupirika kwazinthu patsamba lawo, https://www.tsingtaocnc.com. Kwa magawo ang'onoang'ono, kuyambira ndi ogulitsa omwe amapeza sayansi yazinthu zoyambira ndi theka lankhondo.
Zida: Kumene Kulondola Kumakumana ndi Pragmatism
Chikombole ndi chilichonse. Pazigawo zazing'ono, nthawi zambiri mumagwiritsa ntchito zitsulo zolimba kwambiri kapenanso zoyikapo za tungsten carbide. Pulitchi, kamangidwe ka mpweya, njira zozizirira - zonse zimachitidwa pamlingo womwe umafuna EDM ndi mphero yolondola kwambiri. Koma apa pali zothandiza mutu: kukonza. Kadontho ka fumbi, kachidutswa kakang'ono ka carbonized binder buildup mu micro-cavity, ndipo zokolola zanu zimatsika. Tinakhazikitsa njira yoyeretsera ma ultrasonic pazida pakati pa kuthamanga, zomwe zimamveka zomveka, koma kupeza ma frequency olondola ndi yankho lomwe limatsuka popanda kuwononga malo opukutidwa anali njira yoyesera-yolakwika.
Phunziro lina linaphunzira movutirapo: musachulukitse chida chifukwa cha izo. Poyambirira, tidapanga nkhungu yokhala ndi zibowo zambiri yokhala ndi ma cavity 64 a giya yaying'ono. Lingaliro linali kukulitsa zotulutsa. Koma kudzaza kusasinthasintha m'mabowo onse kunali koopsa; kusiyanasiyana pang'ono kwa kutalika kwa othamanga kunakhala kofunikira. Tinabwereranso ku mapangidwe a 16-cavity okhala ndi dongosolo lothamanga, lofanana. Kutulutsa pa chida chilichonse kunali kocheperako, koma zokolola ndi kusasinthika kwagawo zidakwera, kupangitsa kuti chuma chonse chikhale bwino. Nthawi zina, mu micro MIM, zochepa zimakhala zambiri.
Kutulutsa mpweya ndi luso lina losaonekera. Ndi mpweya waung'ono wotere womwe ungathe kuchoka, kupuma kosakwanira sikumayambitsa kuwombera kwachidule. Zitha kuyambitsa kuyaka pang'ono kwa chomangira (kupanga zolakwika zomwe zimawonekera pokhapokha ngati sintering) kapena zizindikiro zokayika pang'ono zomwe zimakhudza kumapeto. Tinayamba kugwiritsa ntchito zitsulo zokhala ndi timabowo polowera m'malo ovuta kwambiri, zomwe zinali zosinthira nthiti zowonda kwambiri.
The Bridge to Secondary Operations
Kaŵirikaŵiri kagawo kakang'ono ka MIM kamatuluka m'bwato lokonzekera kutumizidwa. Pafupifupi nthawi zonse, pali ntchito yachiwiri. Iyi ndi mfundo yofunikira yomwe nthawi zambiri imachepetsedwa pokonzekera polojekiti. Kampani ngati Mtengo wa QSY, ndi kuphatikiza kwake CNC makina luso, ali ndi mwayi wapadera pano. Ingoganizirani gawo laling'ono la MIM lomwe limafunikira chiboliboli chovuta kuti chilole +/- 0.005mm, kapena nkhope yomwe imafunikira kutsirizika kwapamwamba kwambiri. The sintering process yokha sichingakwaniritse zimenezo.
Tidali ndi gawo la sensa yaying'ono pomwe gawo lopindika limafunikira mawonekedwe a flatness omwe anali opitilira kutha kwa ntchitoyi. Kuyesera kukwaniritsa izi kudzera mu sintering yokha kunapangitsa kuti pakhale ndalama zambiri. Yankho lake linali kupanga gawo la MIM ndi gawo laling'ono lamachining pankhopeyo ndiyeno kugwiritsa ntchito njira yolondola ya micro-mphero post-sintering. Kukhala ndi ukadaulo wamakakina mnyumba, monga QSY imachitira, kuwongolera zokambiranazi. Magulu a MIM ndi makina opanga makina amatha kugwirira ntchito limodzi kuchokera pamapangidwewo, ndikusankha zomwe angapangire kudzera pa MIM ndi zomwe angamalize pogwiritsa ntchito makina, kukhathamiritsa mtengo komanso kulondola.
Synergy iyi ndiyofunikira. Imapewa kuloza zala komwe kungachitike MIM ikachitika pashopu ina ndikukanika kolondola kwina. Gawo lanu linasokonekera panthawi ya sintering, kotero sitingathe kulolerana. Ayi, makina anu opanga makina akugwiritsa ntchito kupsinjika kwambiri. Wothandizira wophatikizidwa amadula phokosolo. Pazigawo zazing'ono zamtengo wapatali, zolondola kwambiri, kuwongolera komaliza uku sikukhala kopambana; ndichofunika.
Zolephera Zenizeni Zapadziko Lonse ndi Pivots
Sikuti nkhani iliyonse imakhala yopambana, ndipo izi ndi zomwe mumaphunzira kuchokera kwa ambiri. Tidanenapo za pulojekiti yamakina ovuta a micro-latch mu 17-4PH zosapanga dzimbiri. Chigawocho chinali ndi makoma opyapyala opingasa komanso mbali yaing'ono, yosalimba ya hinjiro. Tinali odzidalira. Tidavomereza kuti fanizolo livomerezedwe, koma popanga oyendetsa, malo a hinge amawonetsa kusakhazikika kwapakatikati. Chifukwa chake? Tsatirani chithunzithunzi cha okosijeni panthawi ya sintering, chomwe chinapangitsa kuti geometry yowondayo ifike. Mkhalidwe wa sintering sunali wangwiro mokwanira pa izi pamlingo womwewo.
Kukonzekera kunali kokwera mtengo: kusamukira ku ng'anjo yovundikira ndi kukakamiza pang'ono kwa haidrojeni yoyeretsedwa kwambiri pa sitepeyo yowotchayo. Icho chinapha malire a polojekiti, koma chinapulumutsa gawolo. Tsopano, pamapangidwe aliwonse okhala ndi zoonda kwambiri, zonyamula katundu, timasanthula mosamalitsa za momwe sintering atmosphere ikuyendera komanso kugwirizana kwake ndi chemistry ya alloy. Ndi malo ofufuzira omwe adawonjezedwa pamndandanda wathu wa DFM (Design for Manufacturability) chifukwa chakulephera kumeneko.
Kulephera kwina kunalidi kugwiritsira ntchito molakwa. Wothandizira amafuna micro MIM ya pini yosavuta, yaying'ono. Anali mawonekedwe a cylindrical. Tidachita izi, koma pochita kufa, zinali zoonekeratu kuti kutembenuza pang'ono kapena kugaya molondola kukanakhala kotsika mtengo kwambiri pa geometry imeneyo. Mphamvu za Micro MIM ndizovuta, osati kukula kokha. Tinaphunzira kukankhira mmbuyo zambiri, kutsogolera makasitomala ku njira yoyenera, ngakhale zitatanthawuza kutaya mawu. Zimapanga kukhulupirika kwa nthawi yayitali.
Kuyang'ana M'tsogolo: Malingaliro Ophatikiza
Kodi zonsezi zikupita kuti? Tsogolo, ndikuganiza, ligona pakuphatikizana kozama komanso kapangidwe kanzeru. Tikuwona chidwi chophatikiza microMIM ndi njira zina zopangira ma micro-forming kapena in-mold assembly. Koma maziko amakhalabe akuthupi ndi kukonza bwino. Ndi za kukhala ndi chithunzi chonse, kuchokera ku ufa mpaka kumapeto, gawo lophatikizidwa.
Ichi ndichifukwa chake chitsanzo cha wopanga chophatikizika chokhazikika ndichokakamiza. Kampani yomwe imamvetsetsa kuponya ndalama ndi chipolopolo nkhungu kuponyera kwa zigawo zazikulu, zovuta zimabweretsa kumvetsetsa kwathunthu kwa kayendedwe kazitsulo ndi kulimbitsa patebulo. Akamagwiranso ntchito mu MIM yaying'ono komanso yolondola CNC makina, monga machitidwe omwe afotokozedwa ndi QSY, atha kulangiza njira yabwino kwambiri pagawo lomwe laperekedwa. Kodi gawoli ndiloyenera kuponya ndalama zazing'ono kapena micro MIM? Kukhala ndi mphamvu zonse pansi pa denga limodzi kumatanthauza kuti yankho limayendetsedwa ndi luso laukadaulo, osati ndi njira imodzi yomwe sitoloyo imapereka.
Kwa aliyense amene akudumphira mu jekeseni wachitsulo kakang'ono, upangiri wanga wosafunsidwa ndi uwu: yang'anani kupyola makinawo ndi nkhungu. Yang'anani pa chilengedwe chonse - chithandizo cha sayansi ya zinthu, luso lachiwiri lokonzekera, ndipo chofunika kwambiri, mbiri yothetsa mavuto ya gulu lomwe mukugwira nalo ntchito. Ukadaulowu ndiwodabwitsa, koma ndizomwe zidasonkhanitsidwa, zopambana movutikira zomwe zimatembenuza gawo lozizira laling'ono kukhala gawo lodalirika, lopangidwa mochuluka. Ndiko kugaya kuseri kwa kukongola.
