Yuav Ua Li Cas Ntsuas Cov Khoom Siv Kev Nyab Xeeb Tom Qab Tshaj Tawm -Kev Ua Haujlwm hauv Hlau 3D Printing?

Tus neeg yuav khoom tau txais ib pawg ntawm SLM titanium prototypes uas zoo meej tom qab electropolishing thiab passivation. Dimensions check out, nto tiav zoo heev -tab sis cov khoom puas muaj kev nyab xeeb tiag tiag rau kev siv hauv kev cog qoob loo, khoom noj khoom haus-kev tiv tauj, lossis cov ntawv thov kev lag luam tseem ceeb?

Tshaj tawm - kev hloov pauv ntawm ob qho tib si saum npoo thiab cov khoom loj, yog li kev sim tom qab kev kho mob tsis yog- sib tham. Kev kho cua sov, HIP, machining, electropolishing, los yog txheej txheej tuaj yeem txhim kho cov khoom, tab sis lawv tuaj yeem nthuav qhia cov kev pheej hmoo tshiab xws li cov khoom seem, hloov oxide txheej, lossis kev hloov pauv tsis tau xav txog. Hauvhlau 3D luam ntawv, hla kev lees paub tom qab kev tshaj tawm - kev ua haujlwm tau ua rau kev sim biocompatibility ua tsis tiav, corrosion ntxov ntxov, lossis kev ua haujlwm tsis zoo.

Vim li cas Kev Ntsuam Xyuas Tom Qab Kev Tshaj Tawm -Kev Ua Haujlwm Tsis Txaus Siab

Tshaj tawm - kev hloov pauv ntau dua li qhov pom. Nws hloov kho qhov chaw chemistry, txo kev ntxhov siab, kaw qhov porosity, thiab tuaj yeem hloov kho kev ua haujlwm. Yog tsis muaj kev pov thawj, koj yuav raug siv cov khoom uas tsis ua raws li cov khoom siv tshwj xeeb lossis cov kev cai nyab xeeb.

Yuav ua li cas mus tsis ncaj ncees lawm yog tias koj hla validation?

Residual polishing media los yog tshuaj lom neeg ua rau cytotoxicity lossis paug.

Kev cuam tshuam cov khaubncaws sab nraud povtseg ua rau ntau dua ion tso tawm.

Txo kev qaug zog lub neej lossis kev hloov pauv yam tsis tau xav txog.

Batch-rau-batch inconsistency tom qab tweaks txheej txheem.

Ib tug hlau 3D luam ntawv chaw tsim tshuaj paus xa electropolished 316L qhov chaw rau ib tug neeg. Ib qho kev hloov me me hauv batch electropolishing tsis tau qhia cov residues hloov maj mam. Cov khoom tau dhau los kuaj thawj zaug tab sis ua tsis tiav cytotoxicity thiab endotoxin kuaj tom qab, ncua kev kho mob los ntawm lub lis piam thiab yuav tsum tau them nqi rov ua haujlwm dua-. Qhov no qhia txog qhov xav tau ntawm cov hlau 3D luam ntawv zoo tswj thiab cov khoom siv tsim khoom siv ntxiv validation.

Dab tsi hloov pauv tom qab Kev Tshaj Tawm -Kev Ua Haujlwm?

Post{0}}kev ua haujlwm cuam tshuam ntau yam:

Kev hloov pauv chemistry saum npoo: Passivation ntxiv dag zog rau oxide zaj duab xis; electropolishing tshem tawm embedded hais thiab txhim kho uniformity.

Cov cuab yeej cuab tam hloov pauv: HIP txo qhov porosity thiab txhim kho kev qaug zog; annealing relieves kev nyuaj siab tab sis yuav txo hardness.

Dimensional thiab microstructural hloov pauv: Cov khoom tshem tawm lossis qhov ntom ntom tuaj yeem hloov qhov kam rau ua; grain qauv evolves.

Kev pheej hmoo ntawm cov kab mob seem: Tshaj tawm los ntawm blasting, acids los ntawm passivation, los yog electrolytes los ntawm polishing.

Cov ntaub ntawv cov ntaub ntawv: Kev hloov pauv yam khoom

Cov kev hloov no ua rau SLM ib feem ntawm qhov chaw kho mob tseem ceeb rau kev ua haujlwm.

Cov Kev Ntsuas Kev Nyab Xeeb Tseem Ceeb tau piav qhia ua lus Plain

Kev kuaj Cytotoxicity: Txiav txim siab seb cov khoom puas ua rau lub hlwb muaj sia (ISO 10993-5). Qhov tseem ceeb rau kev siv kho mob.

Kev kuaj corrosion thiab ion tso tawm: ntsev tsuag, immersion hauv simulated lub cev kua, ua raws li ICP-MS rau quantifying leached ions.

Kev kuaj tshuab: Tensile (ASTM E8), qaug zog, hardness - txheeb xyuas lub zog tom qab kho.

Kev kuaj xyuas qhov huv: XPS / ESCA rau chemistry, hu rau lub kaum sab xis rau kev ntub dej, kuaj endotoxin (LAL).

Tsis yog-kev kuaj kev puas tsuaj (NDT): CT scanning, X-ray, dye penetrant rau qhov tsis xws luag.

Cov ntaub ntawv rooj: Test Method vs Application

Hlau 3D luam ntawv biocompatibility kuaj thiab NDT hlau SLM qhov chaw yog lub hauv paus.

Khoom siv -los ntawm -Qhov tseem ceeb ntawm Kev Ntsuas Khoom

Ti-6Al-4V: Tsom ntsoov rau oxide txheej kev ncaj ncees, Al / V ion tso tawm, thiab qaug zog lub neej tom qab HIP.

316L Stainless Hlau: Txheeb xyuas qhov ua tau zoo, kev tiv thaiv corrosion, thiab qib endotoxin.

CoCr Alloys: Ua ntej cobalt / chromium ion leaching, cytotoxicity, thiab hnav cov khib nyiab.

Inconel/Nickel Alloys: Nickel migration thiab siab -kub oxidation.

AlSi10Mg: Txheej adhesion thiab uniformity tom qab anodizing.

Cov ntaub ntawv lub rooj: Pom zoo Test Panel (piv txwv)

Kev kho mob cog (Ti-6Al-4V): ISO 10993 roj teeb puv + qaug zog + ion tso tawm.

Muaj (316L): Corrosion + mechanical + NDT.

Kev Kho Hniav (CoCr): Cytotoxicity + ion tso tawm + kuaj hnav.

Ib txwm tailor kom kawg -siv.

Txoj Cai Tswjfwm Koj Yuav Tsum Paub

ISO 10993 series: Cov tub ntxhais rau biocompatibility, suav nrog cov khoom degradation los ntawm cov hlau.

ASTM E8 / E466 / F3122: Mechanical kuaj rau AM qhov chaw.

TS EN ISO 15730 Electropolishing

FDA kev taw qhia txog cov khoom siv tsim khoom ntxiv: Kev txiav txim siab txog kev ua tus cwj pwm thiab kev sim (cov txheej txheem hloov tshiab hais txog kev pheej hmoo- raws li txoj hauv kev).

EU MDR Annex I: Kev nyab xeeb thiab kev ua tau zoo.

ISO 10993 hlau 3D luam ntawv ua raws li yuav tsum tau ua rau kev siv kho mob.

Yuav Ua Li Cas Tsim Ib Daim Ntawv Tshaj Tawm -Kev Ua Haujlwm Kev Xeem Ua Haujlwm (ib kauj ruam los ntawm kauj ruam)

Txhais qhov kawg- siv ib puag ncig thiab qib kev pheej hmoo (sib cuag lub sijhawm, kua dej, thauj khoom).

Daim ntawv qhia tshaj tawm - ua cov teebmeem ntawm cov khoom tseem ceeb.

Xaiv cov txheej txheem thiab kev lees paub raws li cov qauv.

Teem caij sampling txoj kev npaj (piv txwv li, statistical rau ntau lawm batch).

Cov ntaub ntawv thiab archive rau traceability.

IbSLM 3D luam ntawv prototypingTus neeg muag khoom tau ua haujlwm nrog kev kho mob OEM los tsim cov txheej txheem suav nrog HIP validation, electropolishing verification, thiab abbreviated ISO 10993 xeem. Qhov no txhawb kev pom zoo thiab txo cov kev pheej hmoo.

Cov lus nug nquag

Cov kev ntsuam xyuas dab tsi yuav tsum muaj rau cov hlau 3D luam ntawv kho mob?

Kev pheej hmoo -raws li ISO 10993 kev ntsuam xyuas (cytotoxicity, rhiab heev, irritation, systemic toxicity, genotoxicity, implantation, thiab lwm yam) ntxiv rau txhua yam thiab tshuaj yam ntxwv.

Koj yuav kuaj li cas yog tias cov hlau 3D luam tawm muaj kev nyab xeeb tom qab electropolishing?

Muab cov kev ntsuam xyuas saum npoo (XPS), ion tso tawm / tso rau hauv kev sim, cytotoxicity, thiab kev kuaj xyuas huv.

Kev kho HIP puas cuam tshuam rau biocompatibility ntawm SLM qhov chaw?

Nws feem ntau txhim kho nws los ntawm kev txo cov porosity, tab sis rov- kev sim yuav tsum tau ua raws li kev hloov pauv microstructure.

Dab tsi yog qhov txawv ntawm cytotoxicity kuaj thiab ion tso tawm kuaj?

Cytotoxicity txheeb xyuas cov teebmeem lom neeg ncaj qha rau cov hlwb; ion tso tawm kom muaj nuj nqis tshwj xeeb ntawm cov hlau ions uas tuaj yeem ua rau cov teebmeem no dhau sijhawm.

Kuv yuav ua li cas thiaj paub yog tias kuv lub tuam txhab luam ntawv hlau 3D puas kuaj kev nyab xeeb?

Thov cov ntaub ntawv qhia ntxaws ntxaws, tshuaj xyuas lawv cov kab ke zoo, thiab txheeb xyuas qhov thib peb -Lab kev lees paub.

Puas yog SLM 3D luam ntawv prototyping muaj kev nyab xeeb yam tsis muaj kev tshaj tawm - ua?

Tsis tshua muaj -raws li - cov khoom tsim feem ntau tsis muaj kev nyab xeeb rau cov ntawv thov.