Kana iwe uchinzwa 'stainless simbi jekiseni jekiseni molding' kana MIM, iyo inonzwika ipapo inogara iri pamusoro pekuoma uye net-shape. Asi ndave ndiripo kwenguva yakati, ndinowana nhau chaiyoiyo isiri mubhurocha rinopenya; iri mune gritty ruzivo rwekugadzira 17-4PH bracket inobata 0.005 kushivirira batch mushure mebatch, kana nei chikamu chakagadzirirwa machining chinowanzotadza kutadza kana iwe uchichinjira kuMIM. Pane fungidziro isiriyo yekuti MIM ingori fancy yepurasitiki jekiseni kuumba nehupfu hwesimbi-hazvisi. Matanho ekubvisa uye ekunyudza anosuma zvinosiyana zvinogona kuninipisa kunyangwe ane ruzivo rweinjiniya. Imhuka yakasanganiswa, yakagara pakati pekukandira nekugadzira, uye inoda kuremekedzwa kwebhuku rayo rakasarudzika.
The Material Dhanzi: Haisi Kungoti Stainless Simbi
Iwe haungangoti simbi isina tsvina woti izuva. For simbi jekiseni kuumba, hupfu hunoita zvinhu zvese. Kugovera saizi yechidimbu, chimiro, uye kuyerera nebhainda system inoita kana kutyora chikamu. Isu takamhanyisa mabasa ne316L uye 17-4PH kazhinji, asi kunyangwe mukati meaya mamakisi, akasiyana poda mutengesi anogona kushandura iyo sintering shrinkage factor. Ndinoyeuka purojekiti yechikamu chekuvhiya apo iyo spec yakadana 316L yekudzivirira ngura. Mabheti mashoma ekutanga akafamba zvakanaka, asi simba rekuneta rakanga rapera. Zvinoitika, iyo okisijeni yemukati muupfu, chimwe chinhu chatakanga tisina kuongorora zvakakwana, chaive chepamusoro, chinotungamira kune miniti inclusions. Isu takachinjira kune gasi-atomized poda ine yakaomesesa spec, uye yakazvigadzirisa. Ndiwo manuances aya anopatsanura prototype kubva kune kugadzirwa-yakagadzirira chikamu.
Apa ndipo apo kuve nekumashure mune yakakura simbiworking kwakakosha. Kushanda nemudiwa se Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), ane makumi emakore mukudyara kwekudyara uye CNC machining eStainless simbi uye alloys akakosha, iwe unowana iyo ingrained zvinhu sensibility. Havasi kungosvina hupfu; vanonzwisisa kuti simbi inoita sei pasi pekupisa uye kushushikana kubva kumakona akawanda ekugadzira. Iro ruzivo rwekuyambuka-maitiro runozivisa zvirinani tsika yeMIM-kuziva, semuenzaniso, kuti sintered 304 ingaite sei zvakasiyana pasi peinotevera CNC nzvimbo oparesheni kana ichienzaniswa neyakaenzana yakakandwa.
Chikamu chekubvisa bhainda ndicho mhondi yakanyarara. Kukurumidza, uye iwe unowana mitswe kana mablister; kunonoka, uye uri kuuraya choto chako throughput uye mutengo. Kune simbi dzisina tsvina, iyo kabhoni kutonga panguva yekubvisa kwakakosha. Siya yakawandisa kabhoni yasara, uye iwe unokanganisa kuramba kwecorrosion-chikonzero chaicho chawakasarudza isina tsvina pakutanga. Takadzidza izvi nenzira yakaoma pane yekutanga chirongwa chemugungwa hardware clip. Zvikamu zvakapfuura macheki asi zvakatadza bvunzo yakapfava yemunyu. Mhedzisiro yacho yaive isina kukwana kutenderera kwemafuta ekubvisa iyo yakasiya kabhoni kumashure, munzvimbo inopedza chromium. Yakagadziridzwa, yakawanda-nhanho debind process yakagadzirisa. Icho chiyeuchidzo chokuti muMIM, hausi kungoumba simbi; uri kuvaka patsva microstructure yayo kubva paupfu.
Dhizaini yeMIM, Kwete Yebasa chete
Iyi ndiyo poindi huru yekupokana nemainjiniya ekugadzira. Vanopa chikamu chakagadzirirwa machining kana kuisa mari uye vanotarisira kuti MIM ingoigadzira. Hazvishande zvakadaro. Uniform madziro ukobvu is gospel. Isu taive nemutengi anosimbirira pane flange ine gobvu hub uye nhete, radial zvimbi. Chikamu chacho chakamonyoroka kunge chipu chembatatisi panguva yekunyura nekuti shrinkage yekusiyanisa yaive yakakura. Isu taifanira kudzoka, kutaurirana tichiwedzera diki gussets uye zvishoma kukora zvimbi, izvo zvakawedzera huremu husina basa asi zvakachengetedza geometry yese. Iyo tooling yaifanira kugadziriswa, hongu. Kudyidzana, dzimwe nguva kudzokorora, kutamba.
Zvimiro zvakaita senge undercuts uye tambo dzemukati ndipo panopenya MIM, asi zvinoda akangwara dhizaini dhizaini. Ejector pini yekuisa pane isina tsvina ine trickier kupfuura papurasitiki - unogona kusiya mavanga anooneka kana kutokonzera deformation pane yakasvibira chikamu. Ndinoyeuka giya diki rine mazino ehelical paifanira kuiswa mapini ejector pachiso chegiya. Takazoshandisa tsika, multi-stage ejection system uye kupukuta mapini kusvika pagirazi kupera kudzivirira kumaka. Mutengo wemidziyo wakakwira, asi mutengo wega-wega uye kuita zvaisakundika kana zvichienzaniswa nemamwe maitiro.
Imwe tsanangudzo inoshanda: dhizaini angles. Ehe, iwe unoda kushoma dhizaini pane yechinyakare epurasitiki jekiseni kuumba, asi iwe uchiri kuda imwe, kunyanya kune yakadzika makomba. Kuedza kutiza ne zero dhizaini kuchengetedza pane yechipiri machining kunogona kukonzera zvikamu zvinonamira muchishandiso kana kuwana zvibodzwa panguva yejection. Ihupfumi hwenhema. Chinangwa che simbi isina tsvina yesimbi jekiseni kuumba is net-shape, asi mambure anoreva kuti inobuda muchoto chakasiiwa yakagadzirira kushandiswa. Kazhinji, kune dzakakosha mainterfaces, mwenje CNC skim kana kuchera ichiri kudikanwa. Iko hakusi kukundikana kweMIM; inzira yepragmatic hybrid. Kambani yakaita seQSY, ine hunyanzvi hweCNC hwakabatanidzwa, inobata iyi pfungwa isina musono-vanoona yechipiri ops kwete seyakaparadzana maitiro asi sedanho rekupedzisira muMIM mafambiro.
Iyo Sintering Crucible: Iko Mashiripiti (uye Kushungurudza Mwoyo) Kunoitika
Zvose zvisati zvaita sintering chete kugadzirira. Iyi ndiyo nhanho apo iyo yakasununguka, yebrown chikamu chinova dense, metallurgically sound component. Kune simbi dzisina tsvina, kudzora kwemhepo ndiko kwakakosha. Iwe unowanzo kushandisa hydrogen, argon, kana vacuum. Hydrogen yakanakira kudzikisa epamusoro oxides uye kuchenesa chikamu, asi iwe unofanirwa kubata dova zvine hungwaru. Kudonhedza kunounza imwe okisijeni kana nitrogen kunogona kukanganisa moto wechoto.
Tembiricha kufanana chimwe chikara. A +/- 10 ° C kusiyanisa mukati mechoto kunogona kutungamirira kune 0.2% mutsauko mukuderera. Pachikamu che50mm, iyo 0.1mm-yakakwana kukwenya batch yekushanda-kushivirira application. Isu takadyara muchoto profiling ine akawanda thermocouples uye takawana yedu yakakwana zone. Iye zvino, tinotakura zvikamu zvakakosha chete munzvimbo iyoyo. Zvikamu zvishoma zvakakosha zvinoenda kumacheto. Izvo ndezvekutonga real estate yevira rako sechessboard.
Chiyero chekutonhora chinokanganisa zvinhu zvekupedzisira. Kune kunaya-kuomesa mamakisi senge 17-4PH, iwe unogona chaizvo kuita iyo mhinduro kurapwa uye kuchembera mumutsara nekutenderera kutenderera kana choto chako chagadzirirwa icho. Kubatsira kukuru, kubatanidza matanho. Asi kuwana iyo nguva-tembiricha-shanduko curve kurudyi kune chaiyo chikamu misa kune empirical. Isu takavaka raibhurari diki yemaprofile akabudirira ezvikamu zvakasiyana mhuri. Harisi bhuku; ndeye shop-floor lore, yakanyorwa mumagirafu anopisa uye QC mishumo.
Kana MIM Isiri Mhinduro
Sekutenda kwangu mukuita, zvakakosha kuti uzive miganhu yayo. Metal jekiseni kuumba inotamburira nezvikamu zvakakura kwazvo (kazhinji pamusoro pe250 magiramu e-stainless) uye dzakatetepa kwazvo, dzakafara zvikamu zvakati sandara izvo zvinowanzoita warpage. Isu takambotora mazwi akaonda, eplate-sene sensor dzimba dzinenge 2mm gobvu uye 100mm mhiri. Kunyangwe paine conformal turusi yekutonhodza uye sintering setter, isu takatadza kubata flatness. Mutengi akaenda nechaizvo chidhindo uye machining panzvimbo. Kwaive kufona chaiko.
Yakanyanya kukwirira-kutendeseka zvikamu zvezvimiro zvekutanga aerospace mitoro nzira dzinowanzo shandiswa zvirinani nekugadzira kana machining kubva kubillet. Iyo isotropic zvimiro zveMIM zvakanaka, asi kune yakanyanya kuomarara maapplication, iyo pedigree yechinhu chakagadzirwa ichiri kusarudzwa. Nekudaro, kune zvisingaverengeke zvikamu mumidziyo yekurapa, pfuti, maturusi eindasitiri, uye zvemagetsi zvevatengi, MIM inopa musanganiswa usingarondwe wekuoma, kuita kwezvinhu, uye mutengo pahuwandu. Ndezvekunhonga hondo dzako.
Ichi ndicho chikonzero ruzivo rwakakura rwemutengesi zvakakosha. Kana iwe ukapinda muchitoro chinongoita MIM chete, vanogona kuedza kumanikidza-kukodzera chikamu chako. Asi timu inobatawo Investment casting uye CNC machining, sevanhu veQSY, inokupa ongororo yakatendeseka. Vanogona kuti, Tarisai, kune iyi geometry uye vhoriyamu, kukanda ganda mold ine CNC kupera kungave kudhura-inoshanda kwauri. Kuva nehanya ikoko kunovaka kuvimbana. Makore avo makumi matatu ekukandira uye kugadzira zvinoreva kuti vanoona MIM sechishandiso chimwe mubhokisi hombe rematurusi, kwete chete chishandiso.
Iyo Chaiyo-Nyika Gaya: Hunhu uye Kuenderana
Kutangisa chikamu cheMIM chinhu chimwe; kugadzira 500,000 yavo ine CpK pamusoro pe1.33 ndeimwe. Iwo macheki emhando yemazuva ese: poda yakawanda kuenderana, binder batch viscosity. In-process inotarisa pane yegirini chikamu huremu uye zviyero zvinobata madhirifi asati anyura. Asi iyo chaiyo QC inoitika post-sinter. Isu tinoita statistical process control pazviyero zvakakomba, density cheki (ichivavarira kazhinji > 96% yetioretical yestainless), uye periodic yakazara metallurgy-tensile bvunzo, kuoma, corrosion cheki. Hazvitaurike.
Kukundikana kuongorora chikamu chebasa. Ndapedza maawa ndiri pasi pemaikorosikopu ndichitarisa chikamu chakatyoka. Yaive pore inonyungudika, kusanganisirwa kubva mukusvibiswa, kana kusimuka kwekushushikana kubva pakukanganisa kwekugadzira? Imwe neimwe ine zvigunwe zvakasiyana. Imwe nyaya yaidzokororwa kare yaive njodzi yekutadza musangano. Zvikamu zvakapfuura zvese zvakatemwa. Pakupedzisira akaironda kunyaya yokubata—vashandi vakanga vachidonhedza mabhini ezvikamu zvakanyungudutswa, zvichikonzera mitswe miduku iyo yaibva yapararira. Kugadzirisa kwanga kusiri mukuita; kwaiva kuisa furo mumabhini. Chidzidzo: maitiro haagumire pachoto.
Pakupedzisira, kubudirira simbi isina tsvina yesimbi jekiseni kuumba iri pamusoro pemasystem kufunga. Ndiwo muchato wesainzi yemidziyo, dhizaini yekugadzira, kugadzira maturusi, engineering yekupisa, uye kusimba kwehutongi hwemhando. Harisi bara remashiripiti. Iyo inoda, inonakidza, uye ine simba rinoshamisa maitiro kana iwe uchinzwisisa mutauro wayo uye nekuremekedza mitemo yayo. Makambani anobudirira mariri, seaya ane ruzivo rwakadzama mumabasa esimbi ane hukama, ndiwo asingangotengese zvikamu - anotengesa zvinovimbika, zvinogadziriswa.
