Ukuyila a imveliso yomgubo wemveliso yesinyithi ayithethi malunga nokukopa itemplate. Imalunga nokusombulula imiqobo yokwenyani yobunjineli-i-thermal distoring in sintering, density gradients kwiijometri ezintsonkothileyo, okanye i-batch-to-batch consistency xa uphethe ialloys ye-cobalt-nickel efana ne-AMS 5387 okanye i-T800. Sakhe kwaye salungisa ngaphezu kwe-12 powder metallurgy-integrated imigca yemveliso kubathengi bemizi-mveliso ukususela ngo-2016. Wonke umntu waqala ngombuzo ofanayo: *Yintoni ekufuneka ihanjiswe ngulo mgca-ungavelisi nje?*
Qala ngeenjongo ezisebenzayo, hayi ukuhamba kwenkqubo
Iifektri ezininzi ziyasilela kwiNqanaba loku-1: zenza imephu yezixhobo ngaphambi kokuchaza imida yokusebenza. Izindlu zevalve yoxinzelelo kwiinkqubo ze-hydraulic ayifuni "uxinzelelo oluphezulu" -ifuna ukuxinana kweradial efanayo phakathi kwe ±0.02 g/cm³ ngaphaya kombhobho wayo oyi-120 mm. Isiseko sempompo sifuna isivuno esicinezelayo ≥1,420 MPa emva kwe-HIP-kodwa kuphela kwindawo yeflange ephethe umthwalo, kungekhona i-lugs ekhwelayo. Lo mahluko utshintsha yonke into: inxalenye yokuqhelaniswa kwinqanaba eliluhlaza, ireyithi ye-sintering atmosphere ramp, kunye nokuba i-isostatic pressing eshushu ithatha indawo okanye yongeza i-sintering eqhelekileyo.
Sakhe saphinda salungisa uyilo lulonke lweziko lomthengi kuba uyilo lwabo lwantlandlolo lwalusebenzisa i-nitrogen-based sintering kwimibhobho ye-cobalt alloy. Ukungahambelani kokwandiswa kobushushu kubangele ukuqhekeka kancinci kumqala womqala-i-0.3 mm yendawo ebalulekileyo. Ukutshintshela kwi-vacuum sintering kunye ne-argon backfill elawulwayo yokunciphisa i-scrap ukusuka kwi-22% ukuya kwi-1.7%. Ukulungiswa kwakungeyonto izenzekelayo. Yayithelekisa ulawulo lwe-atmosfera kunye nejometri esebenzayo.
Ukudityaniswa okuthe nkqo kubetha ukukhutshwa kwemodyuli-xa yenziwe ngokufanelekileyo
Abanye abathengisi bathengisa "izisombululo ze-powder metallurgy turnkey" njengeeseli ezipakishwe kwangaphambili: iatomizer → cofa → isithando somlilo → isikhululo seCMM. Kodwa loo modeli iyayihoya indlela okwenziwa ngayo ukuqhutywa komatshini we-hybrid workflows eneneni. Cinga ngendlu yesilinda yempompo yepiston: i-spline yayo yangaphakathi kufuneka yenziwe ngoomatshini *emva* kwe-sintering ukuze kugcinwe uzinzo lwe-dimensional-kodwa umphezulu onyukayo wangaphandle kufuneka ube phantsi *phambi* kwe-HIP ukunqanda ukugqwetheka okubangelwa yi-fixture.
E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., siqhuba zombini utyalo-mali kunye nemigca yesinyithi somgubo phantsi kophahla oluqinisekisiweyo lwe-ISO-kungekhona ukulungiselela, kodwa kulawulo lwembali ye-thermal. Xa icandelo le-T800 le-alloy litshintsha ukusuka kwi-compact eluhlaza ukuya kwinxalenye egqityiweyo, ukwakheka kwayo okuziinkozo kuguqukela kwizigaba ezithathu: ukutshiswa kwe-binder (350-600 ° C), i-slid-state diffusion (900-1,150 ° C), kunye ne-liquid-phase sintering (1,280-1,350 ° C). Amaziko ethu omatshini e-CNC alinganiswe ukuze ahlawule iipateni zoxinzelelo olushiyekileyo olulinganiswe *kwi-situ* ngexesha lokupholisa-idatha esiyondla ngokuthe ngqo kwi-toolpath imveliso.
Oku akuyothiyori. Kungenxa yoko le nto yethu i-AMS 5387 cobalt alloy 6 iipompo zepompo zifezekisa ukuthotyelwa kwe-GD & T Zone ye-± 0.008 mm kwiindawo zokutywinwa ezibalulekileyo-ngaphandle kwe-post-HIP machining rework.
Umgangatho awuhlolwanga. Yenzelwe ukuziphatha okubonakalayo
Uninzi lwezicwangciso zomgangatho wesinyithi somgubo ziphatha ukuhlolwa njengesango: ukudlula / ukungaphumeleli kutsheki lokugqibela lweCMM. Oko kusemva kwexesha. Ukwahluka koxinaniso luqala ekuxutyweni komgubo. Umxholo we-oksijeni ngaphezu kwe-350 ppm kwi-cobalt-nickel yangaphambili i-powder powder ibangela ukubunjwa kwesigaba se-brittle intermetallic ngexesha le-sintering-engabonakaliyo ngovavanyo olubonakalayo okanye oluqhelekileyo lobunzima.
Isisombululo sethu sibethelela ukuqinisekiswa kumanqaku amane angenakuxoxisana:
- Irisithi yomgubo: Uhlalutyo lwe-OES + LECO kwiqashiso ngalinye; ukulandeleka okuqinisekisiweyo kwi-ASTM B243-22
- Ukuqinisekiswa kwamandla okuluhlaza: Uvavanyo loxinzelelo lwe-Uniaxial kwi-compact yokuqala ye-5 kwi-shift-kungekhona nje ubuninzi
- Sintering profile audit: Imephu yexesha langempela le-thermocouple ngaphakathi kweendawo zesithando somlilo, efakwe kwibhetshi nganye
- Ukukhutshwa kweMicrostructure: I-SEM-EDS kwi-cross-sections yeesampuli zedini ukusuka kumjikelo ngamnye we-HIP
Asizamkeli "izatifikethi zezinto." Siqinisekisa ioksijini, initrogen, ikhabhoni, kunye nokuhanjiswa kobungakanani besuntswana *ngokwethu*. Ngenxa yokuba xa i-winch center shaft roller isilela kwi-8,200 cycles endaweni ye-12,000, unobangela wengcambu awufane ube machining-yi-powder chemistry drift efihliweyo ngokufunda okuphakathi kobuninzi.
Ukuveliswa komgubo wemveliso yemetalurgy kuxhomekeke kwinto oyishiyileyo
Ukwenziwa kwe-Lean kwi-PM akukho malunga nokusika i-headcount. Imalunga nokususa ukubambezeleka kwesigqibo. Omnye umxhasi unciphise ixesha lokuhamba nge-41% kungekhona ngokudibanisa ama-presses-kodwa ngokususa amanqaku amathathu e-handoff phakathi kwe-powder prep, ukucwangciswa kwe-compaction, kunye nokulawula umgca we-sintering. Inkqubo yabo ye-ERP ayikwazanga ukujongana nokutshintsha okuphambili okuguquguqukayo xa iodolo yevalvu ye-hydraulic yexabiso eliphezulu ifika phakathi kwebhetshi. Sayitshintsha ngebhodi ye-Kanban evumelanisiweyo kubukho bexesha langempela-kwaye ubophe amanani amaninzi omgubo kwimiyalelo yomsebenzi wedijithali ebonakalayo kwithebhulethi nganye yomsebenzisi.
Olona phawu lunamandla lomntu oqolileyo imveliso yomgubo wemveliso yesinyithi ayingomthamo wemveliso. Yindlela ekhawuleza ngayo ukulungelelanisa utshintsho kwinkcazo ye-alloy, i-callout entsha ye-GD & T, okanye i-curve yonyango yokushisa ehlaziyiweyo-konke ngaphandle kokuhlaziya iiprothokholi zokuhlola. Eso santya sivela kunxibelelwano olubhaliweyo, oluphindaphindwayo: phakathi kwepowder morphology kunye neemodeli zamandla aluhlaza, phakathi kwexesha lokuhlala le-sintering kunye neemephu ze-porosity zokugqibela, phakathi kweerempu zoxinzelelo lwe-HIP kunye neejika zobomi bokudinwa.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yakha olo nxibelelwano-kungekhona njengeemodeli zethiyori, kodwa njengeeparamitha eziphilayo kwinkqubo yethu yokwenziwa kwemveliso. Sabelana ngazo ngokungafihlisiyo ngexesha lophononongo lobunjineli kuba ukwenziwa ayisosinyanzelo. Yinqanaba lokuqala lomsebenzi.
