Qhov tseeb aerospace bracket los ntawm SLM tsim phaj saib zoo meej. Peb lub lis piam tom qab, tus neeg siv khoom qhia txog cov pob txha pob txha ntawm qhov chaw thiab cov seem dawb hauv cov dej txias. Lub hauv paus ua rau tsis yog cov hlau lossis cov ntawv luam tawm tsis tau - nws yog cov hmoov nplej thiab cov roj ua haujlwm uas tsis tau muab tshem tawm thaum lub sijhawm xa ntawv - ua.
Residual hmoov thiab roj paug yog ob qho ntawm cov teeb meem tshwm sim ntau tshaj plaws thiab tsis pom zoo nyob hauvSLM 3D luam ntawv txheej txheem. Tshem tawm lawv tsis yog qhov nyuaj heev, tab sis nws yuav tsum tau ua raws li txoj cai, tsim nyog chemistry, thiab cov ntaub ntawv pov thawj. Kev tshem tawm cov hmoov seem pov tseg thiab kev tswj cov roj paug yog qhov tseem ceeb rau kev lag luam, kev kho mob, thiab kev siv dav hlau.
Cov Powder thiab Roj Tseem Ceeb Los Ntawm Qhov Twg?
Cov hmoov seem tuaj ncaj qha los ntawm SLM 3D txheej txheem luam ntawv. Unmelted los yog ib nrab melted hais raws li qhov chaw, tshwj xeeb tshaj yog nyob rau hauv complex geometries xws li sab hauv, lattices, thiab overhangs.
Cov roj thiab tshuaj lom neeg tuaj yeem los ntawm cov kauj ruam nram qab no: CNC machining (txiav kua), xaim EDM, electropolishing da dej, thiab kev tuav dav dav ( hnab looj tes, cia, thauj).
Complex internal nta ntxiab hmoov uas yooj yim sab nrauv tsis.
Kev lag luam kub exchanger nrog sib sib zog nqus hauv lattice raws tau hmoov ntim 15 hli sib sib zog nqus. Nws tsuas yog pom thaum lub sijhawm ua ntej - xa CT scan, qhia txog qhov txaus ntshai ntawmhlau 3D luam ntawvsab hauv channel paug.
Vim li cas cov hmoov seem thiab roj yog qhov teeb meem loj dua li lawv saib
Corrosion acceleration: Cov hmoov hmoov tsim cov galvanic hlwb thiab qhov chaw pib.
Mechanical teeb meem: Cov residues cuam tshuam nrog haum, hnav nto, thiab txav qhov chaw.
Kev kho mob/khoom noj khoom haus-kev pheej hmoo kis mus rau: Particle migration thiab chemical leaching tuaj yeem ua rau biocompatibility ua tsis tiav.
Cov txheej txheem cuam tshuam: Cov kab mob cuam tshuam kev cuam tshuam, txheej adhesion, thiab vuam.
Cov ntaub ntawv rooj: Hom kab mob sib kis vs qhov tshwm sim vs kev lag luam
|
Kev kis kab mob |
Qhov Tseem Ceeb |
Cov ntawv thov cuam tshuam |
|
Residual hmoov |
Corrosion, particle tso tawm |
Aerospace, kho mob implants |
|
Machining Roj |
Tsis zoo txheej adhesion, staining |
Kev lag luam, cov khoom siv |
|
Mixed |
Passivation tsis ua haujlwm, tsis lees paub |
Txhua qhov kev ua haujlwm siab - siv |
SLM hmoov residue corrosion tuaj yeem tig ib feem ua haujlwm rau hauv kev lav phib xaub.
Nkag siab txog kev kis kab mob ua ntej xaiv txoj kev tshem tawm
Sib txawv ntawm:
Hmoov: xoob, sintered, los yog embedded.
Roj: Lub teeb machining roj, hnyav txiav kua, los yog tshuaj residues.
Mixed contamination: Feem ntau cov ntaub ntawv.
Kev ntsuam xyuas Geometry yog qhov tseem ceeb - sab nrauv yog yooj yim; Qhov qhov muag tsis pom kev, cov channel sab hauv, thiab cov qauv ntxeem tau nyuaj.
Cov ntaub ntawv rooj: Cov kab mob sib kis vs Adhesion vs Approach
|
Qeb |
Qib Adhesion |
Txoj Kev Tshem Tawm Tseem Ceeb |
|
Loose Powder |
Tsawg |
Compressed cua + vibration |
|
Embedded hmoov |
Siab |
Ultrasonic + ntxuav |
|
Lub Teeb Roj |
Nruab nrab |
Solvent los yog aqueous degreasing |
|
Hnyav / Mixed |
Siab |
Multi-theem ultrasonic |
Kauj Ruam -los ntawm -Txoj Kev Tshem Tawm Cov Txheej Txheem rau Cov Plua Plav
Compressed cua tshuab-tawm - Zoo thawj zaug, tsis muaj qhov kawg daws.
Vibratory/mechanical agitation - Shakes xoob trapped hmoov.
Ultrasonic tu - Zoo heev rau kev tshem tawm tob (feem ntau 40 kHz).
Pressurized flushing - Rau cov channel sab hauv (piv txwv li, 2-5 bar DI dej lossis roj inert).
Nqus -pab rho tawm - Siv tau rau kaw lossis nyuaj geometry.
Ib lub chaw tsim khoom ua Ti-6Al-4V txha caj qaum implants siv peb-theem raws tu qauv (compressed cua → 40 kHz ultrasonic → 3 bar DI dej yaug), ua tiav particle suav hauv qab 50 ib cm².
Cov ntaub ntawv rooj: Cov hmoov tshem tawm cov txiaj ntsig
|
Txoj kev |
Qhov zoo tshaj plaws rau Geometry |
Cov khoom siv xav tau |
Lub Sijhawm Sijhawm |
|
Compressed Cua |
Sab nrauv |
Basic compressor |
1–5 feeb |
|
Ultrasonic |
Internal + lattices |
Ultrasonic tank |
10–20 feeb |
|
Pressurized Flush |
Cov channel |
Pump + fixtures |
5–15 feeb |
Kauj Ruam -los ntawm -Txoj Kev Tshem Tawm Cov Roj thiab Tshuaj Tiv Thaiv Kab Mob
Solvent degreasing (IPA, acetone) - Ceev ceev rau cov roj teeb.
Alkaline aqueous tu - Cov neeg ua haujlwm rau kev tshem tawm roj.
Ultrasonic nrog xab npum - Ua tau zoo heev thaum tsis ua kom zoo.
Supercritical CO₂ - Zero-residue, loj hlob nyob rau hauv siab -end applications.
Plasma tu - Qhov kawg ua kom tiav.
Cov ntaub ntawv rooj: Cov Txheej Txheem Roj Tshem Tawm
|
Txoj kev |
Khoom Compatibility |
Residue Risk |
Qhov zoo tshaj plaws siv Case |
|
Aqueous Alkaline |
Zoo (feem ntau hlau) |
Tsawg (yog tias yaug) |
Kev lag luam |
|
Ultrasonic + xab npum |
Zoo heev |
Tsawg |
Complex geometry |
|
Supercritical CO₂ |
Zoo heev |
Tsis muaj |
Aerospace / Kev Kho Mob |
Khoom siv -Tshwj xeeb tshem tawm raws tu qauv
Ti-6Al-4V: rhiab heev oxide txheej - siv me me pH ( nruab nrab mus rau me ntsis alkaline) thiab tsis txhob nyas tshuaj lom.
316L Stainless Hlau: Risk ntawm flash corrosion - ua raws li passivation.
CoCr Alloys: Tiv thaiv zaj duab xis nto kom txo qis kev pheej hmoo tso tawm ion.
Inconel: Tej zaum yuav xav tau tshwj xeeb siab -kub chemistry.
AlSi10Mg: Tsis txhob muaj cov tshuaj alkaline muaj zog.
Cov ntaub ntawv cov ntaub ntawv: Khoom siv -Kev taw qhia tshwj xeeb
|
Khoom siv |
Kev nyab xeeb pH Range |
Ultrasonic zaus |
Tshaj tawm -Hnub Kauj Ruam |
|
Ti-6Al-4V |
6–9 |
40-80 kHz |
Passivation |
|
316L SS AW |
7–10 |
40 kHz |
Passivation |
|
CoCr |
Nruab nrab |
40-60 kHz |
Txhuam yaug |
Kev Tu Kom Huv Si Tag Nrho - Tau Txais Kev Txiav Txim Siab
Ib ntus yog qhov tseem ceeb. Pom zoo txaus: Qhuav hmoov tshem tawm → Solvent / aqueous degreasing → Ultrasonic tu → Ntau DI rinses → Tswj kom qhuav → Tshuaj xyuas.
Kov CNC-machined qhov chaw los ntawm kev tu tom qab machining. Siv cov txheej txheem huv chav rau kev kho mob / aerospace qhov chaw.
Cov ntaub ntawv lub rooj: Kev tu ib ntus los ntawm Ib Feem Hom
|
Yam Hom |
Cov ntsiab lus tseem ceeb |
|
Kev lag luam |
Kev tshem tawm hmoov → Alkaline ultrasonic → Yaug |
|
Kev Kho Mob Implant |
Multi-theem + validation + passivation |
|
Aerospace |
Kev tshem tawm hmoov → Supercritical CO₂ kev xaiv |
Kev pov thawj
Visual + UV / dawb lub teeb tshuaj xyuas.
Kev ntsuas particle suav (ISO 16232).
TOC (Total Organic Carbon) rau cov roj tsis pom.
Micro-CT rau cov channel sab hauv.
Cov ntaub ntawv rooj: Cov txheej txheem pov thawj
|
Txoj kev |
Tshawb pom |
Kev kuaj pom txwv |
nyuaj |
|
Visual/UV |
Roj, tag nrho hais |
Nruab nrab |
Tsawg |
|
TOC |
Organic residues |
Tsawg heev |
Nruab nrab |
|
Particle suav |
Loose hais |
Raws li ISO 16232 |
Nruab nrab |
|
Micro-CT |
Internal hmoov |
Kev daws teeb meem siab |
Siab |
Regulatory and Industry Standards that Apply
ISO 16232 - Kev huv huv ntawm cov kua hauv Circuit Court.
ISO 13485 - Cov khoom siv kho mob kom zoo.
ASTM F3303 - AM cov ntawv kho mob - ua tiav.
VDA 19 - Automotive particle huv si.
FDA kev taw qhia txog kev tsim khoom ntxiv qhia txog kev tu cov txheej txheem tswj.
Tsim nyog SLM 3D tshuab luam ntawv cov ntaub ntawv no yog ib feem ntawm lawv qhov system zoo.
Feem ntau yuam kev thiab yuav ua li cas zam lawv
Hla kev tshem cov hmoov qhuav ua ntej ntub dej (tsim muab tshuaj txhuam).
Cov tshuaj detergent pH tsis zoo rau cov hlau.
Tsis txaus rinsing los yog rushed kom qhuav.
Kev cia siab tsuas yog kev tshuaj xyuas qhov muag rau qhov nyuaj.
Tsawg- tus nqi qis feem ntau txiav cov ces kaum ntawm cov kauj ruam no.
Cov lus nug nquag
Koj yuav ua li cas tshem cov hmoov seem ntawm cov hlau 3D luam tawm?
Siv ib qho kev sib xyaw ua ke ntawm cov cua compressed, kev co, ultrasonic tu, thiab pressurized flushing tailored rau lub geometry.
Cov hmoov seem puas tuaj yeem ua rau xeb hauv SLM cov ntawv luam tawm?
Yog - cov khoom ua raws li qhov chaw pib corrosion thiab cov cuab yeej ya raws.
Dab tsi yog txoj hauv kev zoo tshaj plaws los degrease cov hlau 3D luam tawm?
Ultrasonic tu nrog tsim nyog aqueous detergent los yog hnyav, ua raws li los ntawm kev yaug tag nrho.
Puas yog ultrasonic tu ua haujlwm rau cov channel hauv SLM?
Yog, tshwj xeeb tshaj yog nrog kev kho kom raug, zaus, thiab dej ntws tawm.
Kuv yuav ua li cas thiaj paub tseeb tias cov hlau 3D luam tawm yog huv?
Ua ke kev soj ntsuam pom nrog TOC, suav particle (ISO 16232), thiab CT scanning qhov xav tau.
Cov txheej txheem ntxuav dab tsi siv rau cov khoom siv hlau ntxiv?
ISO 16232, VDA 19, ASTM F3303, thiab ISO 13485 rau kev siv kho mob.