Ukubumba komjovo wensimbi okunembe kakhulu (i-MIM) kudinga okungaphezu nje komshini—kudinga ifekthri ecabanga njengonjiniyela, ihlole njengomcwaningi mabhuku wekhwalithi, futhi ilethe njengomphakeli obaluleke kakhulu. Nokho abathengi abaningi bafuna a imboni yomshini wokubumba umjovo wensimbi shaya udonga olufanayo: abathengisi abathengisa izingxenyekazi zekhompuyutha kodwa abangenakho ukulawula okujulile kwe-metallurgical, ukulandeleka kwenqubo, noma ukuqinisekiswa okuqondene nohlelo lokusebenza—ikakhulukazi ezingxenyeni ezisebenza ngaphansi kwengcindezi ephezulu, ukuguga ngokweqile, noma izindawo ezibolayo.
Sizibonele mathupha: i-OEM yepompo yaseNyakatho Melika ilibaziseke ukwethulwa ngamaviki angu-11 ngenxa yokuthi uzakwethu we-MIM akakwazanga ukubamba ±0.02 mm kumabhomu e-cobalt alloy AMS 5387. Elinye iklayenti lilahle u-63% womkhiqizo wokuqala owenziwe ngemuva kokuvela kwama-microcracks angaphezulu—okulandelwa emijikelezweni yokushiswa kwe-binder engahambisani kanye nemephu yokuminyana eluhlaza engaqinisekisiwe. Lezi akuzona izingozi zethiyori. Ukwehluleka okuphindaphindwayo okusekelwe ekwazini okuyizicucu: izitolo ezidayisayo ezikhiqiza i-sintering, izindlu ezisebenza ngomshini ezingenalwazi lwe-metallurgy oluyimpushana, noma abahlinzeki “abasebenza ngokugcwele” abenza inkontileka encane yezinyathelo ze-MIM ngaphandle kobunikazi benqubo eyabiwe.
Ukunemba kwe-MIM kweqiniso kuqala kudala ngaphambi kokuthi umshini uvale
Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., siphatha ukubumba komjovo wensimbi njengohlelo oluvala iluphu—hhayi umsebenzi wesinyathelo esisodwa. Isikhungo sethu esithobela i-ISO e-Qingdao sihlanganisa ukuthuthukiswa kwe-feedstock, idizayini yamathuluzi omjovo, ukuhlanganisa iphrofayela ye-kinetics, i-vacuum sintering enamazinga alawulwayo we-atmosphere ramp, kanye nokuqedwa kokugcina kwe-CNC—konke ngaphansi kophahla olulodwa kanye nephrothokholi yekhwalithi eyodwa. Lokho kusho ukuthi awekho ama-handoffs, akukho ukuqagela kwe-batch-to-batch, futhi akukho ukuyekethisa ekuzinzeni kobukhulu bezingxenye ezifana nezindlu zesilinda sephampu ye-piston noma imizimba yamavalvu okucindezela lapho ukuchezuka okungu-0.015 mm kubangela ukwehluleka ukusebenza.
Siqinisekisa yonke impahla—hhayi nje ngokumelene namashidi athile, kodwa ngokumelene nokuminyana kwangempela kwe-sintered, ukusatshalaliswa kosayizi wokusanhlamvu, kanye nesivuno esiqinile kuzinga lokushisa lesevisi. Kuma-alloys asuselwa ku-T800 asekelwe ku-cobalt, siqapha ukulandwa kwekhabhoni ngesikhathi sokucwilisa sisebenzisa ama-oxygen ase-inthanethi futhi sihlole ngemephu ye-EPMA yangemva kwenqubo. Uma impushana eluhlaza ikhombisa ngisho nokuhluka okungu-0.003% kokuqukethwe kwe-nickel, siyayivalela ngaphambi kokuphakela umxube. Lokhu akukona ukudlula ngokweqile. Kungale ndlela esiqinisekisa ngayo isivuno sokudlula sokuqala esingu-99.4% ezicini zephampu ze-AMS 5387—ngisho namayunithi angu-120+ iqoqo ngalinye.
Ukuhlanganiswa okuqondile akuyona i-buzzword-isabelomali sakho sokubekezela
Iningi lamafekthri e-MIM lima ekulethweni kwezingxenye ze-sintered. Asazi. Ngoba futhi sisebenza ngomshini, siphatha ukushisa, futhi siqedelela endlini, sakha isilawuli sejiyomethri kukho konke ukusakaza kwevelu:
- CNC imishini yezikhala ezihlanganisiwe ezine-multi-axis contouring—ebambe ama-callout e-GD&T njengendawo yangempela Ø0.05 mm kuzici ezibalulekile zedatha;
- Ukukhululeka kokucindezeleka kwangemva kwe-sinter kubekwe isikhathi esinembile ukuze kugwenywe ukuhlanekezela ezindlini zamasilinda ezinezindonga ezincane;
- Ukuqedwa kobuso ifaniswe nokusebenza—hhayi ubuhle—njengepholishi yesibuko ye-Ra 0.2 µm yobuso be-fluid seal noma ukuthungwa kwe-grit-blast okulawulwayo kokunamathela kwesifutho esishisayo;
- Ukulandeleka okugcwele: Ingxenye ngayinye iphethe i-ID efakwe nge-laser exhunywe kusitifiketi sayo sempushana eluhlaza, ilogi ye-sintering, umbiko we-CMM, kanye nedatha yokugcina yokuhlola yokusebenza.
Lokhu kuqeda ukubekezelela ukunqwabelana okubulala ukusebenza ezinhlelweni zama-hydraulic. Lapho i-winch center shaft roller yakho kufanele ijikeleze ku-1,800 RPM kuyilapho ithwele umthwalo we-axial ongu-42 kN, awukwazi ukukhokhela u-±0.03 mm ukukhukhuleka phakathi kwe-OD ehlanganisiwe kanye nejenali yokuthela eqediwe. Udinga iqembu elilodwa eliphethe yonke imakron.
Ukuqinisekiswa komhlaba wangempela kwehlula imininingwane yelebhu njalo
Amakhasimende ayabuza: “Ingabe eyakho imboni yomshini wokubumba umjovo wensimbi ukuphatha ama-cobalt-nickel alloys ngaphandle kwe-micro-porosity? Impendulo yethu akuyona idatha yedatha—iwumbiko wokuhlola ovela kuhlelo lokusebenza lwenkundla kawoyela bukhoma. Ngo-Q3 2023, saletha amapulagi angu-217 e-cobalt alloy kusonkontileka wokumba phesheya. Ngemuva kwezinyanga ze-14 zokuchayeka okuqhubekayo odakeni olugcwele i-H₂S ku-150 ° C kanye ne-10,000 psi, amayunithi ayiziro abonise umgodi noma ukulahlekelwa amandla okuvala. Imfihlo? Hhayi nje ibanga le-alloy — bekuyiphrofayili yethu yokubopha, eyehlisa ikhabhoni esele ngo-41% uma kuqhathaniswa nemijikelezo yerempu ejwayelekile, futhi isikhathi sethu sokuhlala silungiselwe iwindi elincane le-cobalt.
Siphinde silungise lokho abanye abangakunaki. Izinqubo ezijwayelekile ze-MIM zivame ukwehluleka kumajiyometri angajwayelekile—njengochungechunge lwangaphakathi olujule kunobubanzi obungu-3× noma izici ze-undercut ezidinga izisekelo zobumba ezenziwe ngokwezifiso. Sakhe indlela exubile: i-sinter near-net shape, bese sisebenzisa i-wire-EDM ukuze uthole ubuqotho bentambo kanye ne-micro-polish yokulawula i-root radius. Umphumela? Imicu edlula u-100% wokuhlola i-torque esebenzayo, hhayi nje ukuhlola amageji wokuhamba/ungahambe.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ayithengisi imishini. Siletha izingxenye zensimbi ezinembayo ezakhelwe umphumela. Kungakhathaliseki ukuthi wenza isibonelo somlomo we-AMS 5387 noma ulinganisa amayunithi angu-5,000/ngenyanga yezisekelo zephampu yensimbi engagqwali, amandla ethu alele ekwenzeni izinto ezimbalwa—kodwa ukuzenza ngokuphindaphinda okubhaliwe, isiyalo se-metallurgical, kanye nokungabekezeleli lutho ekuqageleni. Ukunemba akusona isilungiselelo emshinini. Isamba sazo zonke izinqumo ezenziwe-futhi zaqinisekiswa-ngaphambi komkhumbi wengxenye yokuqala.
