Yam twg feem ntau yuav tsum tau ua haujlwm thib ob?

Ib, Secondary machining xav tau los ntawm cov haujlwm tseem ceeb
1. Lub sealing nto thiab mating nto
Sealing nto: Lub sealing nto yuav tsum muaj peev xwm tuav tau siab - cov kua siab (xws li hydraulic roj thiab roj) nyob rau hauv qhov chaw xws li hydraulic valve lub cev thiab roj turbine combustion chambers. Txhawm rau kom tsis txhob xau, qhov roughness saum npoo yuav tsum tau khaws cia hauv qab Ra0.4 μm. Piv txwv li, lub sealing nto ntawm 3D- luam tawm titanium alloy valve lub cev ntawm lub dav hlau cav roj twj xav tau CNC txiav kom tshem tawm cov hmoov tsis zoo kom nws haum zoo nrog cov roj hmab sealing nplhaib.
Yuav kom tau txais IT5-IT6 qib raug, qhov chaw sib xws xws li iav meshing qhov chaw, cov kabmob mounting qhov, thiab lwm yam yuav tsum tau ua hauv av lossis honed. Tom qab 3D luam ntawv ib yam ntawm cov iav reducer planetary iav, cov hniav nto roughness mus ntawm Ra6.3 μ m rau Ra0.8 μ m, thiab lub suab nrov poob los ntawm 15dB ua tsaug rau kev tig thiab sib tsoo hnyav.
2. System ntawm threads thiab qhov
Xov: 3D luam tawm threads feem ntau muaj cov hniav tsis tiav vim yog hmoov adhesion, yog li lawv yuav tsum tau tapping los yog dov. Piv txwv li, tom qab 3D luam ntawv, threads ntawm pob txha screws nyob rau hauv kev kho mob implants yuav tsum tau kho nrog ib tug kais kom paub tseeb tias lawv haum nruj nrog cov pob txha cov ntaub so ntswg.
Qhov system: Yuav kom paub tseeb tias qhov tob thiab qhov uas hla ib leeg yog coaxial, lawv yuav tsum tau dhuav thiab reamed. Piv txwv li, lub qhov txias txias ntawm lub tshuab hluav taws xob lub tshuab hluav taws xob turbine yog tswj kom nyob rau hauv ± 0.02mm ntawm qhov aperture deviation siv ib qho kev sib xyaw ntawm 3D luam ntawv thiab hluav taws xob tawm machining (EDM) technologies.
3. Raws li lub teeb thiab cov kua dej
Polishing optical nto zoo li laser reflectors thiab infrared qhov rais mus rau qhov tseeb nto ntawm λ/10 (632.8nm wavelength) yuav tsum tau ultra-precision. Piv txwv li, ib yam ntawm satellite optical bracket yog tsim los ntawm 3D luam ntawv nws thiab tom qab ntawd siv magneto rheological polishing kom tshem tawm ntawm qhov chaw ripples kom nws ua tau raws li qhov xav tau ntawm qhov chaw kho qhov muag.
Electrochemical polishing (ECP) yuav tsum tau tshem tawm cov burrs ntawm phab ntsa sab hauv ntawm microchannel cua kub exchangers, roj nozzles, thiab lwm yam kua dej. Qhov no ua rau cov dej ntws tsis zoo. Cov roj nozzle ntawm GE Aviation's LEAP lub cav, piv txwv li, suav nrog 3D- luam tawm sab hauv txoj kev uas tau kho nrog ECP. Qhov no tau ua rau qhov loj ntawm cov roj atomization hais txog 30% me dua thiab qhov ua tau zoo combustion 5% siab dua.
2, Kev xav tau rau kev ua haujlwm ntxiv vim tias cov txheej txheem txwv
1. Qhov roughness ntawm qhov saum npoo yog siab dua li qub.
Feem ntau qhov chaw: qhov chaw sib cuag ntawm cov qauv kev txhawb nqa, lub overhanging nto, thiab lub dav hlau loj. Kev sib cuag saum npoo ntawm cov qauv kev txhawb nqa ntawm 3D- luam tawm titanium alloy acetabular khob muaj qhov ntxhib ntawm Ra12 μ m vim cov hmoov lo rau nws. Txhawm rau txo qhov hnav ntawm cov pob txha, qhov no yuav tsum tau xuab zeb siv txoj siv tawv rau Ra1.6 μ m.
Cov ntaub ntawv txhawb nqa: Cov txheej txheem SLM luam tawm Inconel 718 alloy nrog qhov ntxhib ntawm Ra8-15 μ m ntawm qhov chaw. Tom qab milling, qhov roughness no txo ​​mus rau Ra0.8-1.6 μ m, thiab lub neej qaug zog yog ncua peb zaug.
2. Tsis txaus qhov tseeb qhov tseeb
Kev ntsuas tseem ceeb suav nrog qhov aperture, qhov dav dav, kauj ruam qhov siab sib txawv, thiab lwm yam. Piv txwv li, ib yam ntawm cov turbine hniav tenon zawj muaj qhov dav siab ntev ntawm ± 0.05mm, tab sis tom qab 3D luam ntawv, qhov txawv yog ± 0.2 hli, uas yuav tsum tau kho los ntawm cov hlau txiav (WEDM).
Nyob rau hauv cov ntaub ntawv ntawm Siemens Zog cov roj turbine guiding vanes, 3D luam ntawv thiab tsib -axis linkage milling tshuab yog siv los ua kom cov hniav zoo li lub thickness sib txawv nyob rau hauv ± 0.05 hli, uas txhim kho airflow efficiency los ntawm 2%.
3. Kho qhov tsis xws luag sab hauv
Muaj ntau yam tsis xws luag, xws li porosity, tsis muaj fusion, tawg, thiab lwm yam. Piv txwv li, yog tias X-ray kev ntsuam xyuas pom qhov ua txhaum loj dua li ib txwm muaj nyob rau hauv cov khoom tseem ceeb- bearing qhov chaw ntawm cov qauv aviation, lawv yuav tsum tau kho los ntawm drilling, vuam, thiab machining. Tom qab tshem tawm cov kev ua txhaum los ntawm lub zos milling, 3D luam ntawv seem ntawm lub tsaws iav sab nrauv lub tog raj kheej ntawm ib hom dav hlau yog kho los ntawm electron beam vuam. Tom qab ntawd, kev kho cua sov tshem tawm cov kev ntxhov siab uas seem.
3, Piv txwv ntawm kev lag luam siv li cas thiab nws siv li cas hauv lub neej tiag tiag
1. Lub teb ntawm aerospace
Qhov chaw ntawm lub cav: Rolls Royce UltraFan ® Lub cav kiv cua thav duab yog ua los ntawm 3D- luam tawm titanium alloy thiab muaj qhov sib dhos uas yuav tsum tau dhuav kom paub tseeb tias lawv nyob hauv txoj kab nrog cov kabmob. Qhov no txo ​​cov nqi vibration los ntawm 40%.
Satellite structural Cheebtsam: 3D- luam tawm aluminium alloy qhov chaw ntawm ib hom satellite bracket. Cov kev txhawb nqa seem raug tshem tawm siv CNC machining, uas ua rau cov khoom 15% sib zog dua thaum tseem ua tiav qhov chaw- qib nqus cov qauv.
2. Implants rau kev kho mob
Kev sib koom ua ke ntawm tus kheej: Yuav kom tau txais Ra0.2 μm smoothness ntawm femoral condyle nto ntawm Johnson & Johnson DePuy Synthes '3D luam tawm lub hauv caug pob qij txha, qhov saum npoo yuav tsum yog hauv av nrog qhov tseeb heev. Qhov no ua rau cov pob txha cement hnav tsawg sai.
Kev cog hniav: Nobel Biocare's 3D- luam tawm titanium alloy implants xav tau micro milling kom tshem tawm cov hmoov uas lo rau hauv paus ntawm cov xov. Qhov no ua rau lawv 25% ruaj khov thaum xub thawj.
3. Cov cuab yeej siv zog
Nuclear fais fab li qub: Cov nickel{0}}raws li alloy li qub ua los ntawm Tuam Tshoj National Nuclear Corporation xav tau laser cladding thiab sib tsoo kom lawv tsis txhob tawg ntawm qhov kub ntawm 650 degree. Lawv kav ntev li ob zaug ntev li niaj zaus castings.
Roj cell bipolar phaj: Lub 3D- luam tawm stainless hlau bipolar phaj rau Toyota Mirai roj cell xav tau tshuaj etching thiab polishing ntawm cov ntws channel kom txo qhov kev tiv thaiv ntawm 10m Ω· cm ² rau 1m Ω· cm ². Qhov no ua rau lub kaw lus ua haujlwm tau zoo dua 8%.