Mukamva 'wopanga jekeseni wachitsulo', malingaliro ambiri amalumphira molunjika ku magawo amphamvu kwambiri, ang'onoang'ono, ovuta. Ndizowona, koma ndipamenenso malingaliro olakwika oyamba akulu amakhala. Anthu amaganiza kuti ndi njira yotsika mtengo yopangira makina masauzande ambiri. Kunena zowona, mtengowo suli mu kuchuluka kokha; zili mu ma geometries omwe ndi zosatheka kapena okwera mtengo kwambiri ku makina kapena kuponyedwa mwachizolowezi. Woyang'anira zipata si atolankhani, ndi feedstock, debinding kuzungulira, ndi sintering luso. Ndaona ntchito zambiri zikulephera chifukwa wina sourced a zitsulo jekeseni akamaumba wopanga kutengera mawu am'kabuku osamvetsetsa za kuchulukira kwa zinthu kapena zida zopangira ma undercuts.
Kuvina Kwambiri: Sikuti Kungoumba
Njira ya MIM ndi marathon, osati sprint. Mumayamba ndi granular feedstock - ufa wachitsulo woyimitsidwa mu chomangira cha polima. Kudzipangira komweko kumamveka bwino ngati mukudziwa jekeseni wa pulasitiki. Koma ndi gawo lophweka. Mwangopanga kumene 'gawo lobiriwira' lomwe nthawi zambiri limamangiriza. Kenako pakubwera debinding, pang'onopang'ono, sitepe yovuta kuchotsa chomangiracho popanda kuwononga. Mofulumira kwambiri, ndipo mbaliyo imatuluka matuza kapena ming'alu. Apa ndipamene zinachitikira wopanga zikukuwa. Sitolo ngati Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), yomwe ili ndi mbiri yozama pakupanga ndalama, ili ndi mwendo pamwamba apa. Malingaliro owongolera njira zamafuta ndikusintha kwazinthu mu sintering ali moyandikana. Mbiri yawo yayitali mu chipolopolo nkhungu kuponyera ndi kuponya ndalama zikutanthauza kuti siachilendo kunjira zovuta, zofananira ndi maukonde okhala ndi zowongolera zolimba pambuyo pa sintering.
Sintering ndiye gawo lamatsenga. Gawolo limapita ku ng'anjo, ndipo zitsulo zotsalazo zimaphatikizana, kuchulukitsa. Gawolo likucheperachepera - mwachidziwikire, mukuyembekeza. Kutsika kodziwikiratu kumeneku ndi kopatulika. Wopanga zakale wapanga mbiri ya sintering pazinthu zosiyanasiyana - zitsulo zosapanga dzimbiri, ma aloyi apadera-kupyolera mu kuyesa, zolakwika, ndi ma metrology ambiri. Si njira yokhazikika yomwe mumakoka m'buku. Mwachitsanzo, gawo lomwe lili ndi makulidwe osiyanasiyana a khoma limatha kusanja mosiyanasiyana ngati mbiri ya ng'anjoyo sinakonzedwe. Mumaphunzira kuti mwa kuwononga magulu, osati powerenga ma spec sheet.
Ndicho chifukwa pambuyo-sintering CNC Machining iwo amapereka si afterthought; nthawi zambiri zimakhala zofunikira. Ngakhale ndi njira yabwino kwambiri yowongolera, zina - monga ulusi wolimba kwambiri kapena malo okwerera - zingafunike kuyeretsedwa komaliza. Kukhala CNC makina m'nyumba, monga QSY imachitira, ndi mwayi waukulu. Amalola Integrated ndondomeko ulamuliro. Simukutumiza gawo la sintered kwa wogulitsa wina, ndikuyika zovuta zamalumikizidwe. Mutha kupanga gawo la MIM, podziwa kuti mawonekedwe ofunikira amatha kusinthidwa pambuyo-sintering kuti mugunde +/- 0.05mm callout. Imatembenuza malire kukhala mphamvu yopangira haibridi.
Zosankha Zakuthupi: Kumene Ma Aloyi Amakhala Yeniyeni
Kulankhula kwa zida mu MIM nthawi zambiri kumayamba ndi 17-4PH zosapanga dzimbiri. Ndi kavalo wantchito. Koma ntchito yeniyeni yosangalatsa imachitika ndi ma alloys ovuta. Apa ndipamene zitsulo zopangidwa ndi zitsulo zopangidwa ndi opanga zimayesedwa. Ma superalloys opangidwa ndi nickel kapena cobalt opangira zakuthambo kapena zoyika zachipatala amachita mosiyana kwambiri pakuwotcha. Zomwe zimapangidwira zimakhala zosiyana, kukhudzika kwawo kwa ng'anjo yamoto (hydrogen, argon, vacuum) ndizofunikira.
Kampani yomwe imalemba zochitika ndi ma aloyi opangidwa ndi cobalt ndi zitsulo zopangidwa ndi nickel pantchito yawo yoponya, monga mukuwonera patsamba lawo pa https://www.tsingtaocnc.com, ndikuwonetsa kuthekera kopitilira zitsulo zosavuta. Kugwira zinthu izi kumafuna kuwongolera kolimba kwa ufa (kuwongolera okosijeni), makonzedwe apamwamba a ng'anjo, komanso kumvetsetsa mozama momwe makina omaliza amakwaniritsidwira kudzera mu sinter cycle. Si bizinesi yam'mbali; ndi ukatswiri. Ndikukumbukira pulojekiti yowongolera maopaleshoni yomwe inkafunika aloyi ya nickel-chromium. Ma sintering ochepa oyambilira adapereka magawo omwe amakumana ndi zinthu zina koma anali ndi ductility. Kukonzekera sikunali kodziwikiratu - kunali kusintha pang'ono kwa kutentha kwanthawi yayitali komanso kuzizira, zomwe zidaphunziridwa kuchokera kuzinthu zawo zopangira ndalama zokhala ndi ma aloyi ofanana.
Chovuta apa ndikungoganiza kuti opanga onse atha kuthana ndi zida zonse zomwe zalembedwa. Funso ndiloti Kodi mungathe kuchita? koma Ndiwonetseni gawo lopanga lomwe mwachita mu aloyi iyi, ndipo tiwone ma certs azinthu ndi data yoyeserera yamakina. Zomwe zili pa satifiketi yakuvomereza ziyenera kubwereranso ku njira yoyendetsedwa, yobwerezedwa, osati gulu lamwayi.
Zida: The Silent Cost Driver
Zida za MIM ndi chilombo china. Chifukwa cha mawonekedwe amtundu wa feedstock, nkhungu nthawi zambiri zimapangidwa kuchokera kuzitsulo zolimba zolimba. Filosofi yamapangidwe ndi yosiyana ndi jekeseni wa pulasitiki. Mukupanga gawo lomwe lidzacheperachepera (moyenera) ndi 15-20%. Choncho, khungu la nkhungu limakula kwambiri. Ma angles ojambulira ndi ofunikira kuti atulutse gawo lobiriwira, lomwe ndi losalimba.
Kuvuta kumabwera ndi mawonekedwe amkati ndi ma undercuts. Popanga pulasitiki, mungagwiritse ntchito zomangira kapena zonyamulira. Mu MIM, mumayesetsa kuwapewa ngati mliri wa zida chifukwa amawonjezera mtengo ndipo amatha kusokoneza kutulutsa kofewa kobiriwira. Nthawi zambiri, kusankha kwapangidwe ndiko kuumba bowo ndikugwiritsira ntchito yachiwiri kupanga njira yochepetsera, kapena kuvomereza mapangidwe osavuta. Ndakhala mumisonkhano yowunikira momwe tidakhala ola limodzi tikukambirana za 0.5mm - kaya tigwiritse ntchito, kuyipanga pambuyo pake, kapena kuyithetsa. Ufulu zitsulo jekeseni akamaumba wopanga adzakhala ndi zokambiranazi msanga, ndikukankhira mmbuyo pa zopanga zopanda pake osati chifukwa sangayese, koma chifukwa amadziwa zokolola ndi mtengo wake kuchokera ku zolephera zakale.
Apa ndipamene thandizo la uinjiniya wophatikizika limafunikira. Wopanga yemwe amangotenga fayilo ya CAD ndi zolemba ndizowopsa. Mmodzi yemwe amapempha kuyitana kuti mukambirane za kusintha kwa makulidwe a khoma, malo a zipata, ndi zolembera zomwe zingatheke zikubweretsa zochitika zawo zapansi pa sitolo pamapangidwe anu. Imapulumutsa miyezi yachisoni.
Mphepete mwa Integration: Kuchokera ku Mold mpaka Gawo Lomaliza
Mwina uwu ndiye mwayi womwe sunakambidwenso. MIM nthawi zambiri si gawo lomaliza. Nthawi zambiri pamakhala kuwotcha, kugwa, kutentha, kuwotcha, kapena makina omaliza olondola. Masitepewa akagawika pakati pa ogulitsa osiyanasiyana, mumalephera kuwongolera. Dimensional tolerances amawunjikana. Nthawi yotsogolera baluni. Mikangano yabwino imakhala vuto loloza zala.
Opaleshoni yomwe imaphatikiza MIM ndi njira zachiwiri pansi pa denga limodzi imapanga mayendedwe ogwirizana. Tengani chitsanzo kuchokera ku chitsanzo cha QSY: amagwiritsa ntchito kuponyera (MIM ndi msuweni wa kuyika ndalama mu filosofi), sintering, ndiyeno CNC makina luso pa tsamba. Pachinthu cholondola kwambiri, izi zikutanthauza kuti gawo lopindika limatha kusunthidwa molunjika ku makina a CNC, kukonzedwa pogwiritsa ntchito mawonekedwe a sintered datum, ndikumalizidwa. Mayankho afupipafupi ndi olimba. Ngati gulu la sintering likuyenda lalikulu pang'ono, pulogalamu yamakina imatha kusinthidwa pang'ono kuti ibwezere. Kuwongolera uku sikuwoneka kwa kasitomala koma kumawonekera m'magawo abwino nthawi zonse komanso maere ochepa okanidwa.
Ndayang'anira maunyolo omwe gawo la MIM lidapangidwa mumzinda wina, kutumizidwa kukamakina kwina, kenako kutumizidwanso kuti plating. Mtengo wa mayendedwe ndi chiwopsezo chamtundu nthawi zambiri zimafafaniza ndalama zomwe zasungidwa pagawo lililonse la MIM. Chitsanzo chophatikizika chimachepetsa izo. Imatembenuza wopanga kuchokera ku purosesa yazamalonda kukhala bwenzi lothandizira pazinthu zovuta zamakina.
Ndiye Mukuyang'ana Chiyani Kwenikweni?
Kusankha a zitsulo jekeseni akamaumba wopanga sizokhudza kupeza mtengo wotsika mtengo pa zidutswa chikwi. Ndizokhudza kupeza kuya kwaukadaulo. Muyenera kuyang'ana luso lawo lazinthu, makamaka ngati mukuyenda kupitirira 316L zosapanga dzimbiri. Muyenera kumvetsetsa njira yawo yopangira zida komanso kufunitsitsa kwawo kugwirira ntchito limodzi pa DFM (Design for Manufacturability). Chofunikira kwambiri, muyenera kuwunika momwe akuwongolera pamtengo wonsewo - kuchokera ku feedstock mpaka kumapeto, gawo loyang'aniridwa.
Mbiri ya kampani, monga zaka 30 za QSY pakujambula bwino ndi kupanga makina, sikungotengera malonda. Ndi gwero lachidziwitso chosonkhanitsidwa, chachinsinsi pakuwongolera zitsulo mumayendedwe apafupi ndi ukonde. Mbiriyi ikuwonetsa kuti amamvetsetsa matenthedwe, kapangidwe ka tirigu, ndi kukhazikika kwapang'onopang'ono mwanjira yatsopano, yodzipatulira yokha kwa-MIM ingakhale ikuphunzirabe kudzera m'mayesero opweteka ndi zolakwika.
Mayeso omaliza amakhala nthawi zonse m'zigawo. Funsani zitsanzo kuchokera pakupanga, osati ma prototypes abwino. Ziyikeni pansi pa maikulosikopu, ziyeseni, ziyeseni. Nkhani ya wopanga imalembedwa mogwirizana ndi kachulukidwe kawo ka sintered komanso kuthwa kwa m'mphepete mwawo omaliza. Ndizo zotsatira zenizeni zomwe zimafunikira.
