Thaum cov neeg feem coob hnov txog kev nce qib hauv cov hmoov hlau metallurgy, lawv pom cov tsho hauv qab lub tsho thiab gleaming, tag nrho cov tshuab luam ntawv. Cov lus piav qhia ntawm kev lag luam yog txhua yam hais txog qhov sib txawv ntawm qhov sib txawv thiab cov alloys tshiab, uas yog qhov tseeb, tab sis nws glosses dhau qhov gritty, qhov tseeb ntawm kev ua cov khoom no ua haujlwm hauv kev sib dhos tiag. Qhov ua ntej tiag tiag tsis yog cov hmoov lossis xovxwm xwb; nws yog kev koom ua ke ntawm tag nrho cov saw-los ntawm feedstock mus rau sintering mus rau theem nrab kev ua haujlwm-thiab yuav ua li cas hloov qhov kev xav. Kuv tau pom ntau qhov kev tsim tsis tau vim tias cov kws ua haujlwm tau teev tseg P / M ib feem zoo li nws yog lub tshuab ua haujlwm, tsis quav ntsej cov khoom anisotropic thiab lub luag haujlwm tseem ceeb ntawm sintering cua. Qhov ntawd yog qhov uas qhov kev nce qib tiag tiag tshwm sim, hauv kev txuas qhov sib txawv.
Cov Khoom Leap tsis yog qhov uas koj xav
Yog lawm, txoj kev loj hlob ntawm cov hmoov ua ntej-alloyed tshiab, zoo li cov kev ua tau zoo tshaj plaws-kev sib koom ua ke sib txawv, yog qhov tseem ceeb. Lawv muab ntau yam microstructures. Tab sis cov tswv yim ua ntej rau peb ntawm kev tsim khoom yog nyob rau hauv cov tshuab khi thiab cov roj nplua nyeem. Thaum ntxov ntawm kuv lub sij hawm ua hauj lwm nrog ib tug khub ntawm valve rooj inserts, peb tsoo ib phab ntsa nrog ntsuab zog. Ib feem yuav tawg thaum ejection, tsis yog thaum sintering. Cov hmoov tau siab heev, tab sis cov txheej txheem tsis yog. Peb tau hloov mus rau ntau cov organic binder-lubricant combo, uas xav tias zoo li ib kauj ruam rov qab ntawm cov duab high-tech, tab sis nws daws qhov teeb meem tam sim ntawd. Nws yog ib qho tseem ceeb kom nco ntsoov tias cov khoom siv hluav taws xob feem ntau yog nyob ntawm cov unglamorous, chemistry-hnyav additives los ua haujlwm tau.
Qhov no txuas ncaj qha rau kev ua haujlwm nrog cov alloys tshwj xeeb. Ib lub tuam txhab zoo li Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), nrog nws cov keeb kwm tob hauv peev casting thiab machining ntawm cobalt thiab npib tsib xee-raws li alloys, nkag siab qhov no intuitively. Thaum koj txav los ntawm kev nrum cov tawv tawv no los ua lawv ntawm cov hmoov hlau metallurgy, cov kev cov nyom ntau ntau. Cov yam ntxwv ntawm cov hmoov ndlwg yog txawv, qhov kub thiab txias sintering yog heev, thiab cov huab cua tswj (feem ntau lub tshuab nqus tsev los yog high-purity hydrogen) yuav tsis-negotiable. Ib qho ua ntej ntawm no tsuas yog ib qho kev txhim kho graphite uas txo qis qhov cuam tshuam ntawm lub voj voog siab, qee yam koj tsuas yog kawm los ntawm kev sim thiab ua yuam kev.
Hais txog sintering, qhov ntawd yog lub sijhawm ua-lossis-so tiag tiag. Koj tuaj yeem muaj kev sib cog lus zoo tag nrho, tab sis yog tias koj qhov ntsuas kub tsis dhau 20 degrees hauv thaj chaw kub kub, lossis yog tias muaj cov xau me me hauv koj lub tshuab nqus tsev, koj yuav xaus nrog cov khoom uas tsis muaj zog tensile lossis tsis sib haum xeeb. Peb ib zaug muaj batch ntawm hmoov metallurgy iav rau lub tshuab hydraulic me me uas dhau qhov ntsuas qhov ntsuas tab sis ua tsis tiav hauv kev sim qaug zog. Tus neeg ua txhaum? Ib me ntsis oxidizing cua thaum lub sij hawm txias, uas tsim ib nkig, nyias oxide txheej nyob rau hauv lub grain ciam teb. Nws tsis pom qhov muag liab qab. Kev ua ntej tau nqis peev rau hauv lub sijhawm tiag tiag ntawm huab cua saib xyuas cov cuab yeej, uas xav tias zoo li cov khoom kim heev kom txog thaum nws tau txais kev cawmdim.
CNC Machining: Tus khub tsim nyog, tsis yog tus neeg sib tw
Muaj qhov tsis tseeb dichotomy ntawm ze-net-puab P / M thiab CNC machining. Lub zog tiag tiag yog nyob rau hauv lawv kev sib koom ua ke. Ib feem yuav yog 95% tsim los ntawm cov xovxwm, tab sis qhov kawg 5% - qhov tseem ceeb bore kam rau ua, lub kaum ntse ntse, los yog xov - xav tau machining. Kev ua ntej yog nyob rau hauv kev tsim rau cov txheej txheem hybrid los ntawm qhov pib. Piv txwv li, qhia ib qho me ntsis undersized qhov nyob rau hauv lub sintered lub xeev, paub tias nws yuav ua tiav-dhuav, tso cai rau ib tug ntau robust tooling tsim thiab zoo dua hmoov sau.
Qhov no yog qhov uas tus khub nrog muaj zog machining credentials yog invaluable. Saib QSY's profile, lawv peb xyoo caum hauv CNC machining tsis yog ib qho kev pabcuam ntxiv; nws yog lub hauv paus kev paub rau kev ua haujlwm tom qab sintering. Machining ib feem sintered steel yog txawv los ntawm machining ib tug wrought bar. Qhov porosity tuaj yeem cuam tshuam lub neej ntawm lub cuab yeej thiab qhov chaw tiav. Koj yuav tsum tau kho qhov nrawm, pub, thiab qee zaum siv cov cuab yeej sib txawv. Kev nce qib hauv P / M yog qhov tsis muaj txiaj ntsig yog tias koj tsis tuaj yeem tshuab nws tsis tu ncua. Kuv tau sib koom tes ntawm cov haujlwm uas peb tau tsim ib qho kev sib txuas tshwj xeeb rau qhov ntxeem tau P / M flange, uas yog qhov tseem ceeb ntawm cov ntawv qhia machining raws li cov khoom siv sintered ntom. Cov txheej txheem ntawd muaj txiaj ntsig zoo li cov hmoov tshwj xeeb.
Lub vev xaib tsi.com highlights lawv cov hauj lwm nrog plhaub pwm thiab peev casting. Nws yog qhov nthuav kom xav txog qhov sib tshooj. Kev nqis peev casting kuj tsim cov duab sib luag, ze-net. Qhov kev xaiv ntawm ob feem ntau yog los ntawm ntim, khoom, thiab cov cuab yeej cuab tam. Qee zaum, qhov ua ntej tsuas yog paub thaum tsis siv hmoov metallurgy. Rau cov ntim siab, ferrous Cheebtsam nrog kev nyuaj siab, P / M yeej. Rau qis ntim ntawm superalloys nrog huab cua xav tau, peev casting tseem yuav yog cov lus teb. Cov kws tshaj lij nyob hauv kev txiav txim siab hu.
Ntshai yog Vajntxwv, Tiamsis Kev Ncaj Ncees yog lub Nceeg Vaj
Txhua phau ntawv hammers txog kev ua tiav siab ceev. Qhov kev sib tw tiag tiag hauv ntiaj teb yog ua kom tau raws li qhov sib txawv, tshwj xeeb tshaj yog nyob rau hauv qhov chaw nrog cov phab ntsa ntsug thiab ntau theem nta. Ib qho ua ntej uas tsis tau txais xovxwm txaus yog qhov kev txhim kho hauv simulation software rau hmoov compaction. Thaum ntxov simulations yog cov lus qhia nyuaj. Now, they can predict density gradients with surprising accuracy, allowing for tooling adjustments before a single tool is cut. Peb siv ib qho kev simulation no los kho dua ib lub punch rau lub sprocket, ntxiv me ntsis taper peb yuav tsis tau xav txog qhov xav tau. Nws txo qhov sib txawv ntawm qhov ntom ntawm li 0.3 g / cm3 mus rau hauv qab 0.1 g / cm3 thoob plaws cov hniav profile. Qhov ntawd txhais ncaj qha rau kev hnav zoo ib yam.
Txawm li cas los xij, software tsuas yog zoo li cov tswv yim. Cov hmoov txhuam cov yam ntxwv tawm tsam cov cuab yeej hlau, uas hloov nrog cov av noo thiab ntau qhov sib txawv, yog qhov sib txawv loj heev. Koj tseem yuav tau mus sim lub cev. Qhov ua ntej ntawm no yog lub voj voog tawm tswv yim: simulate, tsim, ntsuas (siv cov txheej txheem siab heev xws li CT scanning rau sab hauv daim duab qhia kev ntom ntom), tom qab ntawd kho cov qauv simulation. Nws yog qhov rov ua dua thiab qeeb, tab sis nws yog qhov koj tsim cov txheej txheem muaj zog.
Qhov kev ua raws li qhov sib xws no yog qhov ua rau kev saws me nyuam ntau dua cov xovxwm - tsis yog cov nrawm dua, tab sis cov uas muaj kev tswj xyuas zoo dua ntawm kev sau, xovxwm, thiab ejection sequences. Ib me ntsis hesitation thaum lub sij hawm kawg compaction stroke tuaj yeem qhia qhov tsis xws luag. Nws yog cov minutiae no uas cais cov qauv qauv los ntawm cov txheej txheem tsim khoom. Thaum koj tab tom muab cov khoom rau cov kab sib dhos, 99.5% tawm los tsis zoo txaus. Koj xav tau 99.95%. Tau txais qhov kawg 0.45% yog qhov twg ntau xyoo dhau los ntawm kev paub, zoo li qhov uas tau muab tso rau hauv cov tuam txhab ntev ntev, them nyiaj.
Alloy Conundrum thiab Supply Chain
Ua hauj lwm nrog tshwj xeeb alloys xws li npib tsib xee los yog cobalt-based sawv daws yuav ntawm P / M yog thaj tsam pem hauv ntej. Cov kev nce qib yog tangible tab sis tuaj nrog mob taub hau. Cov hmoov yog kim heev, thiab feem ntau koj tab tom cuam tshuam nrog cov ntsiab lus reactive uas xav tau kev tswj hwm huab cua tsis zoo. Kev them nyiaj, txawm li cas los xij, tuaj yeem ua tau zoo heev: cov khoom siv zoo, homogeneous microstructures uas tsis tuaj yeem ua tiav los ntawm kev casting, muab qhov zoo dua qhov kub-kub creep tsis kam.
Tab sis ntawm no yog ib qho teeb meem tswv yim: cov saw hlau fragility. Thaum lub sijhawm ua haujlwm nrog nickel superalloy turbine foob, peb cov khoom siv hmoov ib txwm muaj qhov tsis zoo. Cov ntsiab lus oxygen hauv lawv cov batch yog siab dhau. Peb siv tsis tau. Kev nrhiav lwm txoj hauv kev ceeb toom luv luv yog npau suav phem. Qhov no qhia tau hais tias kev ua ntej ntawm cov khoom ua tau zoo yog moot yog tias koj tsis tuaj yeem ntseeg tau qhov khoom noj. Nws tau thawb peb kom tsim nyog rau ntau tus neeg xa khoom, uas yog tus nqi kim thiab siv sijhawm ntawm kev sim sintering thiab kev sim. Qhov no yog qhov tsis zoo nkauj sab ntawm cov khoom siv siab heev.
Cov tuam txhab uas tau navigated lub ntiaj teb casting nrog cov alloys, xws li QSY, tej zaum yuav tau tsim cov khoom siv cov khoom siv thiab kev nkag siab tob txog cov hlau. Lub hauv paus kev paub yog hloov pauv tau thiab tseem ceeb heev. Lawv yuav nkag siab tias vim li cas koj tuaj yeem ntxiv me me ntawm lub ntiaj teb tsis tshua muaj rau cov hmoov sib tov los txhim kho sintered ntom, vim tias lawv tau pom cov ntsiab lus zoo sib xws hauv cov tshuaj yaj yeeb rau casting. Qhov no cross-pollination ntawm kev paub los ntawm ntau hom kev yees yog nws tus kheej nyob ntsiag to tab sis muaj zog daim ntawv ntawm kev lag luam ua ntej.
Yog li, Dab tsi yog Txoj Kev Ncaj Ncees?
Saib dhau los ntawm kev lag luam, qhov kev sib tw ntawm hmoov metallurgy nce qib yog rau kev koom ua ke thiab subtlety. Nws tsis yog hais txog ib qho txuj ci tseem ceeb tshiab. Nws yog hais txog kev sib txuas zoo dua ntawm cov qauv tsim cov xov (DFAM rau P / M), nrog rau kev kwv yees ntau dua compaction simulation, khi rau ntau zog sintering tswj, thiab kev txhawb nqa los ntawm cov kws tshaj lij tom qab ua tiav uas nkag siab txog sintered microstructure. Lub hom phiaj yog kom txo tau qhov surprise.
Qhov kawg kev ua si yog ua kom hmoov metallurgy ua ntej-xaiv, tsis yog ib qho poob, rau kev thov ntau dua. Qhov ntawd txhais tau hais tias kev ntseeg tus tsim engineers tias lawv tuaj yeem tau txais kev ntseeg siab, ua haujlwm siab yam tsis tas yuav nkag siab lub arcana ntawm lub qhov cub sintering. Kev ntseeg yog los ntawm kev ua kom pom tseeb. Qhov ntawd tau ua ib feem, dhau xyoo, los ntawm kev daws cov teeb meem tsis zoo ntawm cov roj nplua nyeem hlawv tawm thiab tsim kho. Nws yog kev sib koom ua ke ntawm kev lag luam, nyob hauv cov tuam txhab uas tau dhau los ntawm kev hloov pauv ntawm cov khoom siv thiab cov txheej txheem, uas hloov kev sib cais kev nce qib mus rau hauv txoj hauv kev tsim khoom txhim khu kev qha. Cov kauj ruam loj tom ntej no tsuas yog ua qauv qhia li cas peb qhia tag nrho cov kev paub tsis meej, nyuaj-yeej txoj kev paub.
