Ngatitaure nezveMIM. Metal Injection Molding. Kana iwe wanga wakatenderedza kugadzira kwenguva yakakwana, iwe wakanzwa kurira: Zvakafanana nepurasitiki jekiseni kuumba, asi yesimbi! Ndiwo mutsetse webhurocha unopenya, uyo unotengesa michina uye unowana manejimendi kufara. Chokwadi, kugaya kwezuva nezuva kwacho, kwakanyanyisa, kwakawedzera nuances, uye kutaura chokwadi, kunonakidza. Haasi mashiripiti. Kutamba zvine hungwaru kwehupfu, polymer, kupisa, uye kudzvanywa, uye mukaha uripo pakati peiyo prototype inoshanda uye yakakura-goho rekugadzira kumhanya ndiko kwaunowana mitsetse yako. Zvitoro zvakawanda zvakasvetukira mukufunga kuti ichinjiro yakananga yekudyara mari kana CNC machining, uye ndipo panobva batch yekutanga yezvakadhura, sintered scrap.
Iyo Feedstock Conundrum: Zvese Zvinotanga neGranule
Mwoyo weMIM hausi iwo muchina wekuumba; ndiyo feedstock. Iyo homogeneous musanganiswa we-ultra-fine metal poda uye yakawanda-chikamu binder system. Ndakaona maprojects achimira pano. Iwe haugone kungobata 316L hupfu uye generic wax-polymer binder uye kutarisira kubudirira. Kugovera saizi yechikamu, chimiro, iyo oxygen yemukati-inoraira yekupedzisira sintered density uye dimensional kugadzikana. Mumwe mubatsiri akaita saQingdao Qiangsenyuan Technology (QSY) anowana izvi. Nekudzika kwavo kwakadzika mukudyara kwekudyara uye alloys, vanonzwisisa maitiro enyama pasi pekupisa. Pavanopa feedstock yecobalt-chrome yekurapa chikamu, havasi kungotenga chinhu; vari kuongorora mhinduro yaro yekubvisa uye sintering zvichienderana nemakumi emakore ekubata akafanana alloys akakosha.
Uye binder? Chikafu chechinguvana. Basa rayo nderekuyerera zvakanaka panguva yejekiseni, yobva yanyangarika zvachose pasina kukanganisa chikamu chebrown chisina kusimba. Kusarudza isina kunaka kunotungamirira kukuremara kwakaipisisa: mablister, kudonha, kana kutsemuka kunotyisa panguva yekupisa kwekupisa. Iri resipi raunogadzirisa nekufamba kwemakore. The MIM maitiro haaregereri pano-kutsauka kwe0.5% mukuumbwa kwebinder kunogona kubvisa mutoro wechoto chose.
Takadzidza izvi nenzira yakaoma pane yekutanga aerospace sensor dzimba. Iyo geometry yakanga yakaoma, yakatetepa-madziro. Wedu wekutanga-tier feedstock supplier akativimbisa iwo standard binder yaive yepasirese. Zvikamu zvakaumbwa zvakatarisa zvakakwana. Zvadaro, muchikamu chekugadzirisa, vakazvimba sepopcorn. Mabhainda ekubvisa kinetics aive asina kunaka kune yedu chikamu chemuchinjikwa. Taifanira kudzokera, kushanda nenyanzvi kugadzira hurongwa. Ndiyo mari yakavanzika. Ichokwadi MIM hunyanzvi hunowanzo rarama mune izvi zvinhu zvesainzi nuances, kwete mukushandisa mapepanhau.
Kuumba: Iko Plastic Inosangana Nesimbi (Uye Matambudziko Anotanga)
Zvakanaka, une feedstock yako. Zvino iwe unoibaya. Izvi zvinonzwa zvichijairika kune chero epurasitiki molder, asi nemisiyano yakakosha. Iyo yakanyunguduka viscosity yakakwira, yakanyanya kunzwira tembiricha. Uri kurwisana nehupfu-binder separation (chiroto chinotyisa chinonzi slumping) kana ma parameter akadzimwa. Iyo yekushandisa inoda kuverengera yakakwira zvakanyanya, uye isiri-uniform, shrinkage gare gare-kazhinji 15-20%, kwete iyo 0.5% yaunoronga mupurasitiki kana machining.
Kugadzirwa kwegedhi kwakakosha. Unoda kuzorora kwakachena, asi zvinhu zvinoshungurudza. Ndakaona masimbi esimbi apera kupera MIM feedstock pane neironi yakazadzwa negirazi. Venting chimwe chikara. Mhepo yakavharirwa haingokonzeri chikanganiso chekuzora; inogona kugadzira density gradient inova nzvimbo yekutanga kutsemuka mushure mekunyura. Ndiwo madiki process handoffs apo zvinhu zvinoparara. Chikamu chakanyatsoumbwa chinongova chikamu chegirini, chizere nebhainda. Iine simba rechizi yakaoma. Kuibata kunoda racks chaiyo nematireyi; kuchinjisa kumwe kusinga nzwisisike uye unowana chigunwe chakaita chirema chinongo ratidza post-sinter.
Apa ndipo pane zvitoro zvakabatanidzwa zvine mupendero. Tarisa pakuseta kweQSY (https://www.tsingtaocnc.com) Havasi chete a MIM imba. Ivo vane kukanda uye CNC machining mumba. Nei izvozvo zvine basa? Nekuti ivo vanogona kugadzira mold ine sintering kukanganisa uye yekupedzisira net-chimiro chinangwa mupfungwa kubva pazuva rekutanga. Ivo vanonzwisisa dhizaini angles, kukora kwemadziro shanduko, uye kushushikana kwekusimbisa kubva kune simbi-yekugadzira maonero, kwete kungoumba epurasitiki imwe. Chikwata chavo cheCNC chinokwanisawo kugadzira mold inoisa kune yakanyanyisa kushivirira inodiwa, uye gare gare, ita chipiri machining pane iyo sintered chikamu kana chinhu chakakosha chichichida. Iko kusanganisa kwakatwasuka kunodzikira pamutambo wemhosva pakati pekuumba, sintering, uye machining vatengesi.
Iyo Yakareba, Inononoka Kufamba Muchoto
Sintering. The make-or-break phase. Apa ndipo panobviswa binder uye zvidimbu zvesimbi zvinosanganiswa. Imazuva-akareba kupisa kutenderera, kwete kukurumidza kubika. Kutanga, zvishoma nezvishoma, kudzivirira kumanikidza kuvaka-up mukati mechikamu. Ipapo tembiricha inokwira kusvika pedyo nepainonyungudika simbi. Atmosphere control ndiyo zvese. Kudonha kudiki kunounza okisijeni kunogona kuokisisa chikamu chako chesimbi isina simbi, ichiparadza kusaita ngura. Kune ma alloys anoshanda senge titanium kana mamwe nickel-based superalloys, mhepo yemuchoto inoda kuva pristine vacuum kana inodzorwa zvakanyanya argon.
Zvikamu zvinogara pamaseti eceramic, ayo anofanirwa kunge akatsetseka uye anoenderana nemakemikari. Ini ndinorangarira batch yealumina setter yaive neine kusvibiswa kwepamusoro. Pakupisa kwepamusoro, vakaita neInconel zvikamu, vachizviisa kune setter. Kurasikirwa zvachose. Iyo mbiri yechoto - mareti, nguva yekunyura - inoda kuvandudzwa kune yega yega chikamu geometry uye alloy. Chikamu chakakora uye chikamu chakatetepa pachikamu chimwe chete chinopisa pamitengo yakasiyana, zvichikonzera warpage. Iwe unorwisa izvi nekugadzirisa kwakangwara dzimwe nguva, kana nekugadzira chikamu kuti ive neyunifomu yemadziro ukobvu, izvo zvisingagoneke nguva dzose.
Iyi ndiyo nhanho iyo QSY yemakore makumi matatu mukukanda inobhadhara zvikamu. Vanonzwisisa shanduko yemetallurgical, kukura kwezviyo, uye maitiro ekugadzirisa kupisa kuderedza kusara kunetseka. Misimboti vari transferable pakati mari kukanda uye MIM sintering. Vanoziva zvinoitika kune cobalt-chrome pa1300 ° C. Irwo ruzivo rwemasangano runodzivirira yakawanda yekuedza-uye-kukanganisa moto.
Iko Kuongorora Kwechokwadi: Post-Processing uye Iyo Net-Shape Ngano
Heino chakavanzika chakasviba cheMIM: Net-chimiro ishoko rekushambadzira. Kune akawanda anoshanda zvikamu, iri pedyo-net-shape. Mushure mekuita sintering, iwe unogara uchida imwe post-processing. Kazhinji pane chiedza chemwenje chekudzima. Dimensional tolerances inogona kunge iri +/-0.3% pane sintered dimension, asi kune bore inoda kuve H7 fit? Iwe unenge uchizoigadzira. EDM inogona kudiwa kune zvidiki, zvakanyatsojeka zvinhu zvakakanganisa.
Iyo yepamusoro inopedzisa yakananga kunze kwechoto ndeye matte, zviyo. Kune akawanda maapplication, zvakanaka. Kune chikamu chekubata chinoyerera chinoda nzira yakatsetseka yekuyerera, iwe unozofanirwa kupukuta kana electropolish. Izvi zvinowedzera mari uye nguva. Paunenge uchiongorora MIM, unofanira kuita bhajeti yebasa rechipiri iri. Haisi kushaya simba kwemaitiro; ichokwadi cheinjiniya. Chinangwa ndechekuchidzikisa, kuwana 95% yejometri kubva kuforoma, saka yako CNC machining nguva (uye mutengo) pane inodhura sintered chikamu ishoma.
Iyi ndiyo synergy QSY leverages. Chikamu chinobuda muchoto chinopisa. QC yavo inoiongorora. Kana mashoma akakosha datum maficha achida kusimbiswa, inoenda yakananga kune yavo CNC department. Iko hakuna kunonoka kutumira, hapana nyowani yekutenga odha, hapana njodzi yekukanganisa kutaurirana. Ivo vanobata iyo sintered chikamu se pre-fomu, uye hunyanzvi hwavo hwekugadzira kubva kune mamwe masekete hunoshanda zvakananga. Inoshandura ngano yenet-shape kuita inodzorwa, inoshanda-nhanho mbiri yekugadzira nzira.
Kana MIM Ichiita Sense (Uye Kana Isingaiti)
Saka, mushure mezvose izvi, MIM inopenya kupi? Hazvisi zvezvose. Inopenya kune yakakwira-vhoriyamu, yakaoma, diki-kusvika-pakati-epakati simbi zvikamu. Funga zvikamu zvepfuti, shaya dzekuvhiya, magiya egiya bhokisi, zvisungo zvakaomarara. Zvikamu zvingave zvinotyisa kumashini kubva kune yakasimba, kana uko kuisa mari kusingakwanise kubata iyo yakanaka kana madziro matete. Ihwo hupfumi hunoshanda kana iwe uchigadzira zviuru, kwete mazana, nekuda kwekushandisa kwepamberi uye mutengo wekuvandudza maitiro.
Inonetsana nezvikamu zvakakura kwazvo (zviyereso zvesaizi yevira), zvimiro zvakapusa (ingozvigadzira muchina), kana nemamwe maalloys anonetsa zvakanyanya kunyudza kusvika pakuwanda. Iyo inogonawo kunge isiri iyo yakanakisa sarudzo kana zvinhu zvako zviri mwero wakaderera-kabhoni simbi uye iwe unongoda zvidimbu mazana mashanu; laser yekucheka uye welding inogona kunge yakachipa.
Chinokosha ndechekukurumidza kuita. Usangotumira chikamu chakapedzwa chakadhirowa uye wokumbira a MIM quote. Iyo dhizaini inoda kukwidziridzwa pakuita - madziro akafanana, ane rupo radii, anorangarira gedhi uye ejector pini nzvimbo. Mudiwa akanaka achaita Dhizaini yeMIM (DFM) ongororo. Kubva pane zvandakaona zvekushanda seQSY, ongororo iyoyo inoziviswa nekuzara-spektimu yekugadzira simbi. Vanogona kupa nzira yakasanganiswa: MIM iyo yakanyanyisa kuomarara musimboti wechikamu, wobva wagadzira chinongedzo chekubatanidza kubva pabhawa rakagadzirwa uye wochipisa kana weld pairi. Ndiko kunoshanda, kufunga kune ruzivo.
MIM haisi shanduko inotsiva zvese. Ndicho chimwe chishandiso chine simba mubhokisi rematurusi ekugadzira. Kukosha kwayo kunovhurwa kwete nekuiona sechishamiso chakazvimirira, asi nekuibatanidza mukunzwisisa kwakawanda kwesimbi, maitiro avanoita, uye magadzirirwo ayo. Zvitoro zvinozviwana zvakanaka ndezviya, seQSY, vanoremekedza rwendo rwose kubva paupfu kusvika pakupera chikamu, uye vane mavanga-uye kubudirira-kubva pakufamba iyo nzira yechokwadi.
