3D luam tawm nrog Inconel 718: Ib Phau Ntawv Qhia Txog
Inconel 718 yog ib qho ntawm feem ntau dav siv npib npib tsib xee-based superalloys hauvNtxiv kev tsim khoom (AM)Vim nwsLub zog siab, xeb kuj, thiab zoo heev weldabilityCov. Hauv qab no yog cov khoom tseem ceeb ntawm 3D luam tawm inconel 718, suav nrog cov txheej txheem, cov kev sib tw, thiab kev siv.
1. 3D luam tawm cov txheej txheem rau inconel 718
Inconel 718 yog sib xws nrog ntau cov thev naus laus zis, tab sis feem ntau yog:
① Laser Hmoov Paj Fusion (LPBF \/ SLM)
Nws ua haujlwm li cas: Lub High-zog laser xaiv melts zoo tsis raug 718 hmoov txheej los ntawm txheej.
Qhov Zoo:
Siab Precision (Tas Production ± 0. 1 hli).
Cov khoom siv tau zoo heev (ze rau cov khoom siv kom zoo).
Haum rau cov geometries (piv txwv li, turbine hniav, roj ncau).
Kev sib tw:
Residual kev ntxhov siab vim tias nrawm txias → yuav tsum tauHais Txog Kev Sib Koom Tes Ceev.
Kev pheej hmoo ntawmtawg plebYog tias cov txheej txheem tsis zoo yog tsis tau zoo.
② Electron Beaming (EBM)
Nws ua haujlwm li cas: Siv hluav taws xob nqaj nyob rau hauv lub tshuab nqus tsev kom yaj hmoov.
Qhov Zoo:
Seev tsim cov nqi qis dua LPBF.
Qis dua kev ntxhov siab (preheated lub txaj).
Tsis zoo:
Rougher nto tas (yuav tsum tau tshaj tawm-machining).
Txwv rau qhov chaw loj (feem ntau aerospace Cheebtsam).
Kev Qhia Txog Lub Zog Yuam Kev (DED \/ LENS)
Nws ua haujlwm li cas: Ib lub laser lossis hluav taws xob nqaj melts hmoov zoo li nws tau muab tso rau.
Cov Ntawv Thov:
Kho kho tshuab luam.
Ntxiv cov nta rau cov chaw uas twb muaj lawm.
2. Cov kev sib tw tseem ceeb hauv 3D luam tawm inconel 718
| Cav | Kev kom | Lus teb |
|---|---|---|
| Residual kev ntxhov siab | Ceev ceev → thermal gradients | Kev Nyuaj Siab-nyem aniroaling (870 degree, 1h) |
| Porosity | Cov roj av roj lossis tsis muaj kev ywj pheej | Ua kom tau zoo Laser Fais & Tshawb xyuas kom ceev |
| Tawg pleb | Siab Thermal Kev ntxhov siab & Cegration | Kub Isostatic nias (hip) post-tsim |
| Oxidation | Raug rau oxygen thaum lub tshuab luam ntawv | Siv cov roj argon \/ nitrogen tiv thaiv roj |
3. Kev ua haujlwm rau kev ua haujlwm zoo tshaj plaws
Kev Kho Cua Sov (Yuav tsum ua rau Aerospace)
Kev daws Annealing: 980 degree × 1h → Cua txias.
Kev Kho Mob Laus: 720 degree × 8h → rauv taws txias rau 620 degree × 8h → cua txias.
Kub yogostatic nias (hip)
Tshem tawm sab hauv voids (txhim kho kev qaug zog).
Machining & Fare Finishing
Nyuaj rau lub tshuab → Siv carbide lossis cov cuab yeej sib xyaw.
Electrochemical polishing rau cov chaw smoother.
4. Kev siv ntawm 3D-luam tawm inconel 718
| Kev ua hauj lwm | Piv Txwv Qhov | Vim li cas inconel 718? |
|---|---|---|
| Ib tug tub rog | Turbine yas, roj ncau | Lub zog siab lub zog, creep kuj |
| Roj & Roj | Downhole cov cuab yeej, li qub | Corrosion tsis kam nyob rau hauv sour roj |
| Automotive | Turbocharger Log | Kev ua haujlwm hnyav + Thaum tshav kub kub |
| Ntawm kev kho mob | Kev phais mob | Biocompatibility & Durability |
5. Lwm yam rau 3D luam ntawv
Siab dua? → Inconel 625(zoo dua oxidation tiv taus).
Zoo Weldability? → Hastelloy x(txo qis kev pheej hmoo).
Tus nqi qis? → Stainless hlau 316L(tab sis qaug zog ntawm temps).
Kev xav kawg
Inconel 718 yog aCov kev xaiv saum toj kawg nkaus rau kuv hauv kev xav tau ib puag ncig, tab sis xav tauCov qauv ntsuas hluav taws xob tswj thiab tom qab uaCov. Yog koj xav tau kev pabLuam Ntawv Cov Lus Ntsuas, Kev Kho Cua Sov, Lossis Cov Khoom Siv, xav nug! 🚀
