Aluminium khoom ua technology

Aluminium yog cov khoom siv uas tsis yog-ferrous hlau, thiab nws daim ntawv thov ntau yog tseem nthuav. Ntau tshaj 700,000 hom khoom txhuas yog tsim los ntawm cov khoom siv txhuas. Raws li kev txheeb cais, muaj ntau tshaj 700,000 hom khoom txhuas, thiab ntau yam kev lag luam, xws li kev tsim kho thiab kho kom zoo nkauj, kev lag luam tsheb thauj mus los, kev lag luam aerospace, thiab lwm yam, muaj cov kev xav tau sib txawv. Niaj hnub no, Xiaobian yuav qhia txog cov txheej txheem ntawm cov khoom siv txhuas thiab yuav ua li cas kom tsis txhob ua deformation.CNC machining qhov chaw

Qhov zoo thiab cov yam ntxwv ntawm aluminium yog raws li nram no:

1. Tsawg ceev. Qhov ceev ntawm txhuas yog li 2.7 g / cm3. Nws qhov ceev tsuas yog 1/3 ntawm hlau lossis tooj liab.
2. High plasticity. Aluminium yog hloov tau thiab tuaj yeem ua rau ntau yam khoom los ntawm kev ua haujlwm siab xws li extrusion thiab ncab.
3. Corrosion kuj. Aluminium yog cov hlau tsis zoo heev, thiab cov yeeb yaj kiab oxide tiv thaiv yuav raug tsim los ntawm qhov chaw nyob rau hauv tej yam ntuj tso los yog anodizing. Nws muaj kev tiv thaiv corrosion zoo dua li hlau.
4, yooj yim zog. Ntshiab aluminium tsis muaj zog heev, tab sis nws tuaj yeem nce los ntawm anodizing.
5. Kev kho mob yooj yim. Kev kho deg tuaj yeem txhim kho ntxiv lossis hloov cov khoom ntawm txhuas. Cov txheej txheem aluminium anodizing yog qhov paub tab thiab ruaj khov thiab dav siv los ua cov khoom lag luam txhuas.
6. Zoo conductivity thiab yooj yim rau recycle.

Kev siv technology ntawm aluminium khoom

Punching ntawm cov khoom siv aluminium
1. Txias punch
Siv cov khoom siv aluminium pellets. Lub tshuab extrusion thiab tuag yog siv rau ib zaug molding thiab tsim nyog rau cov khoom siv cylindrical lossis cov duab cov khoom uas nyuaj rau kev ua tiav los ntawm cov txheej txheem ncab, xws li oval, square, thiab cov khoom sib dhos.
Lub tonnage ntawm lub tshuab siv yog muaj feem xyuam rau qhov chaw hla ntawm cov khoom. Cov khoom lub phab ntsa thickness yog qhov sib txawv ntawm lub Upper tuag punch thiab qis tuag tungsten hlau. Thaum lub Upper tuag punch thiab qis tuag tungsten steel raug nias ua ke, qhov sib txawv ntsug mus rau hauv qab qhov chaw tuag yog Rau sab saum toj tuab ntawm cov khoom.aluminium qhov

Qhov zoo: Lub voj voog qhib pwm yog luv luv, thiab tus nqi tsim kho qis dua li ntawm cov duab kos pwm.
Disadvantages: Cov txheej txheem ntau lawm yog ntev, cov khoom loj fluctuates ho, thiab tus nqi zog yog siab.
2. Stretching
Siv cov khoom siv aluminium tawv. Nws yog qhov tsim nyog rau deforming lub cev tsis yog-cylindrical (cov khoom siv txhuas nrog cov khoom nkhaus), feem ntau siv cov tshuab tuag tas mus li thiab cov pwm kom ua tau raws li qhov yuav tsum tau ua.
Qhov zoo: ntau qhov nyuaj thiab ntau yam khoom deformation muaj qhov ruaj khov ntawm qhov kev tswj hwm hauv cov txheej txheem tsim khoom, thiab cov khoom nto yog smoother.
Disadvantages: siab pwm nqi, kuj ntev txoj kev loj hlob voj voog, thiab siab tshuab xaiv thiab precision yuav tsum.

Kev kho deg ntawm cov khoom siv aluminium

1. Sandblasting (steev peening)
Cov txheej txheem ntawm kev ntxuav thiab roughening hlau qhov chaw siv cov kev cuam tshuam ntawm kev kub ceev xuab zeb ntws.
Kev kho saum npoo ntawm txhuas qhov chaw hauv txoj kev no tuaj yeem tau txais qee qhov kev huv huv thiab qhov sib txawv ntawm qhov sib txawv ntawm qhov chaw ua haujlwm kom cov khoom siv kho tshuab ntawm qhov chaw ua haujlwm tau zoo dua qub, yog li txhim kho qhov qaug zog ntawm cov khoom ua haujlwm thiab ua kom cov khoom ua haujlwm zoo dua qub. qhov sib txawv ntawm nws thiab txheej. Lub adhesion ntawm txheej prolongs lub durability ntawm txheej zaj duab xis thiab kuj yog conducive rau lub leveling thiab kho kom zoo nkauj ntawm txheej. Peb pom hauv cov txheej txheem no tias Apple cov khoom yog o2. Polishing
Lawv siv txhua yam, tshuaj, lossis electrochemical ua kom txo tau qhov roughness ntawm lub workpiece thiab tau txais ib txoj kev ci ntsa iab, tiaj tus txheej txheem. Cov txheej txheem polishing yog muab faib ua txhua yam, tshuaj, thiab electrolytic polishing. Tom qab txhua yam polishing + electrolytic polishing, aluminium qhov chaw tuaj yeem nyob ze rau daim iav nyhuv ntawm stainless hlau. Cov txheej txheem no ua rau tib neeg muaj kev nkag siab ntawm high-end simplicity thiab fashionable yav tom ntej.
3. Kev kos duab
Hlau hlau kos duab yog cov txheej txheem tsim khoom ntawm kev rov ua cov ntawv txhuas tawm ntawm cov kab nrog cov ntawv xuab zeb. Kev kos duab tuaj yeem muab faib ua ncaj, random, kauv, thiab xov. Cov txheej txheem hlau hlau kos duab tuaj yeem ua kom pom tseeb txhua qhov cim lo lo ntxhuav me me, yog li cov plaub hau ua kom zoo nkauj zoo nkauj tshwm hauv cov hlau matte, thiab cov khoom lag luam muaj kev nkag siab ntawm kev zam thiab thev naus laus zis.
4. High gloss txiav
Siv lub tshuab engraving, lub pob zeb diamond riam yog ntxiv dag zog rau ntawm lub ntsiab ncej ntawm lub tshuab engraving, rotating ntawm ib tug ceev ceev (feem ntau 20,000 rpm) txiav cov qhov chaw, thiab ib tug hauv zos highlight cheeb tsam yog generated ntawm cov khoom nto. Qhov ci ntsa iab ntawm cov ntsiab lus txiav yog cuam tshuam los ntawm qhov nrawm ntawm kev xyaum milling. Qhov kev xyaum nrawm dua, qhov ci ntsa iab ntawm qhov txiav qhov tseem ceeb, thiab qhov sib txawv, qhov tsaus thiab siv tau ntau dua los tsim cov kab txiav. High-gloss thiab high-gloss txiav yog tsuas yog siv hauv cov xov tooj ntawm tes zoo li iPhones. Qee qhov high-end TV hlau thav duab tsis ntev los no tau siv cov txheej txheem milling siab. Tsis tas li ntawd, anodizing thiab hlau kos cov txheej txheem ua rau TV teeb tag nrho ntawm kev zam thiab thev naus laus zis.
5. Anodizing
Anodic oxidation yog hais txog electrochemical oxidation ntawm hlau los yog alloys. Raws li cov khoom siv electrolyte thiab cov txheej txheem tshwj xeeb, txhuas thiab nws cov alloys tsim cov yeeb yaj kiab oxide ntawm cov khoom siv txhuas (anode) vim qhov kev txiav txim ntawm kev siv tam sim no. Anodizing tsis tuaj yeem tsuas yog daws qhov tsis xws ntawm aluminium hardness thiab hnav tsis kam, tab sis kuj ua rau lub neej kev pab cuam ntawm txhuas thiab txhim khu kev zoo nkauj. Nws tau dhau los ua ib feem tseem ceeb ntawm kev kho aluminium nto thiab yog tam sim no siv ntau tshaj plaws thiab ua tau zoo heev. khoom siv tes ua
6. Ob-xim anode
Ob-xim anodizing hais txog anodizing ntawm ib yam khoom thiab muab cov xim sib txawv rau cov chaw tshwj xeeb. Cov txheej txheem ob-xim anodizing tsis tshua siv hauv TV kev lag luam vim tias cov txheej txheem nyuaj thiab cov nqi siab. Tseem, qhov sib piv ntawm ob xim tuaj yeem ua tau

zoo dua xav txog cov high-end thiab tshwj xeeb tsos ntawm cov khoom.

Cov txheej txheem ntsuas thiab kev txawj ua haujlwm kom txo qis deformation ntawm aluminium ua
Muaj ntau qhov laj thawj rau qhov deformation ntawm aluminium qhov chaw, uas muaj feem xyuam rau cov khoom, cov duab ntawm ib feem, thiab cov xwm txheej ntau lawm. Feem ntau muaj cov hauv qab no: deformation los ntawm kev ntxhov siab sab hauv ntawm qhov khoob, deformation los ntawm kev txiav quab yuam thiab txiav kub, thiab deformation los ntawm clamping quab yuam.
Cov txheej txheem ntsuas los txo cov txheej txheem deformation
1. Txo cov kev ntxhov siab sab hauv ntawm cov plaub hau kab lis kev cai
Ntuj lossis dag kev laus thiab kev co kev kho mob tuaj yeem tshem tawm cov kev ntxhov siab sab hauv ntawm qhov khoob. Pre-processing kuj yog ib txoj hauv kev zoo. Vim qhov nyiaj pub loj, qhov deformation tom qab ua tiav kuj tseem ceeb rau qhov khoob nrog lub taub hau roj thiab pob ntseg loj. Xav tias qhov seem ntawm qhov khoob yog ua ntej ua ntej, thiab qhov nyiaj pub dawb ntawm txhua feem raug txo. Nyob rau hauv tas li ntawd, nws tuaj yeem txo qhov kev ua deformation ntawm cov txheej txheem tom ntej thiab tso qee qhov kev ntxhov siab sab hauv tom qab ua ntej ua haujlwm rau qee lub sijhawm.
2. Txhim kho lub peev xwm txiav ntawm lub cuab yeej
Cov khoom siv thiab cov ntsuas geometric ntawm cov cuab yeej muaj qhov tseem ceeb ntawm kev txiav quab yuam thiab txiav cov cua sov. Kev xaiv kom raug ntawm lub cuab yeej yog tsim nyog los txo cov machining deformation ntawm ib feem.
1) Tsim nyog xaiv cov cuab yeej geometric tsis.
①Rake lub kaum sab xis: Nyob rau hauv cov xwm txheej ntawm kev tuav lub zog ntawm cov hniav, lub rake lub kaum sab xis raug xaiv kom loj dua; ntawm ib sab, nws tuaj yeem zom cov ntug ntse, thiab ntawm qhov tod tes, nws tuaj yeem txo qhov kev txiav deformation, ua kom cov nti tshem tawm du, thiab tom qab ntawd txo qhov txiav quab yuam thiab txiav kub. Tsis txhob siv cov cuab yeej nrog lub kaum sab xis tsis zoo.
②Relief lub kaum sab xis: Qhov luaj li cas ntawm lub kaum sab xis ncaj qha cuam tshuam cov flank hnav thiab lub tshuab ua kom zoo. Lub thickness txiav yog qhov tseem ceeb rau kev xaiv lub kaum sab xis. Lub cuab yeej yuav tsum tau ua kom zoo cua sov dissipation thaum lub sij hawm milling ntxhib vim qhov tseem ceeb pub tus nqi, hnyav txiav load, thiab nws kim heev tshav kub tiam. Yog li ntawd, lub kaum sab xis clearance yuav tsum tau xaiv kom me me. Thaum zoo milling, txiav ntug yuav tsum tau ntse, kev sib txhuam ntawm lub ntsej muag flank thiab machined nto yog txo, thiab elastic deformation yog txo. Yog li ntawd, lub kaum sab xis clearance yuav tsum yog qhov tseem ceeb.
③ Helix lub kaum sab xis: Lub kaum sab xis helix yuav tsum loj npaum li qhov ua tau kom du thiab txo cov milling quab yuam.
④ Lub kaum sab xis ntawm lub kaum sab xis: Ua kom lub hauv paus tsis zoo lub kaum sab xis tuaj yeem txhim kho cov cua sov dissipation thiab txo qhov nruab nrab kub ntawm qhov chaw ua haujlwm.
2) Txhim kho cov cuab yeej siv.
① Txo tus naj npawb ntawm cov hniav ntawm cov milling cutter thiab nce qhov chaw nti. Vim yog cov yas loj loj ntawm cov khoom siv txhuas thiab qhov loj txiav deformation thaum lub sij hawm ua, qhov chaw nti loj yuav tsum tau, yog li lub vojvoog hauv qab ntawm cov nti zawj yuav tsum yog qhov tseem ceeb, thiab tus lej ntawm milling cutter hniav yuav tsum me me.
② Finely zom cov hniav. Tus nqi roughness ntawm qhov txiav ntawm cov hniav txiav yuav tsum tsawg dua Ra = 0.4um. Ua ntej siv rab riam tshiab, koj yuav tsum siv lub pob zeb zoo roj los ua kom lub ntsej muag thiab sab nraub qaum ntawm cov hniav riam ob peb zaug kom tshem tawm cov burrs thiab me ntsis serrations sab laug thaum sharpening cov hniav. Ua li no, txiav cov cua sov tuaj yeem txo qis, thiab txiav deformation kuj me me.
③ nruj me ntsis tswj tus qauv hnav ntawm lub cuab yeej. Tom qab lub cuab yeej hnav, qhov roughness tus nqi ntawm lub workpiece nce, txiav kub nce, thiab lub workpiece deformation nce. Yog li ntawd, ntxiv rau kev xaiv cov khoom siv nrog kev hnav zoo, cov cuab yeej hnav tus qauv yuav tsum tsis txhob zoo tshaj 0.2 hli. Txwv tsis pub, nws yog ib qho yooj yim los tsim ib tug built-up ntug. Thaum txiav, qhov kub ntawm lub workpiece feem ntau yuav tsum tsis txhob ntau tshaj 100 ℃ los tiv thaiv deformation.
3. Txhim kho txoj kev clamping ntawm lub workpiece
Rau nyias-walled aluminium workpieces nrog tsis zoo rigidity, cov nram qab no clamping txoj kev yuav siv tau los txo deformation:
①Rau nyias-walled bushing qhov chaw, yog hais tias peb lub puab tsaig lub puab tsaig chuck los yog lub caij nplooj ntoos hlav chuck yog siv rau radial clamping, lub workpiece yuav inevitably deform thaum nws tawm tom qab ua. Txoj kev nias lub axial kawg lub ntsej muag nrog zoo rigidity yuav tsum tau siv. Muab lub puab lub qhov ntawm ib feem, ua ib tug threaded mandrel, ntxig rau hauv lub puab lub qhov, nias kawg lub ntsej muag nrog ib tug cover phaj rau nws, thiab ces zawm nws nrog ib tug txiv ntseej. Clamping deformation tuaj yeem zam tau thaum machining lub voj voog sab nrauv kom tau txais qhov tseeb txaus siab.
② Thaum ua cov txheej txheem nyias-walled thiab nyias-phaj workpieces, nws yog qhov zoo tshaj plaws los siv lub tshuab nqus tsev nqus cov khob kom tau txais kev sib faib sib npaug ntawm cov clamping quab yuam thiab tom qab ntawd txheej txheem nrog me me ntawm kev txiav, uas tuaj yeem tiv thaiv kev ua haujlwm deformation.
Tsis tas li ntawd, txoj kev ntim khoom kuj tseem siv tau. Txhawm rau ua kom cov txheej txheem rigidity ntawm nyias-walled workpieces, ib qho nruab nrab tuaj yeem sau rau hauv lub workpiece kom txo tau qhov deformation ntawm lub workpiece thaum clamping thiab txiav. Piv txwv li, urea yaj uas muaj 3% mus rau 6% poov tshuaj nitrate yog poured rau hauv lub workpiece. Tom qab ua tiav, lub workpiece tuaj yeem muab tso rau hauv dej lossis dej cawv, thiab muab tub lim tuaj yeem yaj thiab nchuav tawm.
4. Kev npaj tsim nyog ntawm cov txheej txheem
Thaum lub sij hawm high-ceev txiav, vim qhov loj machining pub thiab cuam tshuam kev txiav, cov txheej txheem milling feem ntau tsim kev co, uas cuam tshuam rau qhov tseeb machining thiab nto roughness. Yog li ntawd, CNC high-speed txiav txheej txheem feem ntau tuaj yeem muab faib ua roughing-semi-finishing-corner-clearing-finishing thiab lwm txoj kev. Qee zaum nws yog ib qho tsim nyog rau cov khoom uas muaj qhov yuav tsum tau ua kom tau raws li qhov yuav tsum tau ua kom tiav semi-finishing thiab tiav. Tom qab kev ua haujlwm ntxhib, cov khoom tuaj yeem ua kom txias, tshem tawm cov kev ntxhov siab sab hauv los ntawm kev ua haujlwm ntxhib thiab txo qhov deformation. Qhov nyiaj tshuav tom qab kev ua haujlwm ntxhib yuav tsum ntau dua qhov deformation, feem ntau 1 txog 2 hli. Thaum lub sij hawm ua tiav, cov khoom tiav ntawm cov khoom yuav tsum muaj cov nyiaj ua haujlwm zoo ib yam, feem ntau 0.2 ~ 0.5mm, kom cov cuab yeej ruaj khov thaum lub sij hawm machining txheej txheem, uas tuaj yeem txo qhov kev txiav deformation, tau txais cov khoom zoo thiab ua kom cov khoom raug.

Kev txawj ua hauj lwm los txo cov machining distortion

Ntxiv nrog rau cov laj thawj saum toj no, cov khoom ntawm aluminium qhov chaw yog deformed thaum ua. Txoj kev ua haujlwm kuj tseem ceeb heev hauv kev ua haujlwm tiag tiag.
1. Rau qhov chaw uas muaj qhov loj machining nyiaj pub dawb, muab lawv nrog cov cua sov zoo dua thaum lub sijhawm ua haujlwm thiab tsis txhob muaj cua sov siab, kev siv tshuab symmetrical yuav tsum tau saws thaum lub sijhawm machining. Yog tias daim ntawv tuab 90 hli yuav tsum tau ua tiav rau 60 hli yog tias ib sab yog milled thiab lwm sab yog milled tam sim ntawd, thiab qhov kawg loj yog ua tiav ib zaug, qhov flatness yuav ncav cuag 5 hli; Yog tias nws tau ua tiav symmetrically nrog rov noj, txhua sab yog ua tiav ob zaug rau Qhov kawg dimension tuaj yeem lav qhov flatness ntawm 0.3mm.stamping qhov
2. Yog tias muaj ntau cov kab noj hniav ntawm cov phaj phaj, nws tsis tsim nyog siv cov txheej txheem ua ntu zus ntawm ib kab noj hniav thiab ib kab noj hniav thaum lub sij hawm ua, uas yuav sai sai ua rau cov khoom deformed vim qhov tsis sib xws ntawm kev ntxhov siab. Multi-txheej txheej txheem yog saws, thiab txhua txheej yog ua tiav rau tag nrho cov kab noj hniav nyob rau tib lub sij hawm, thiab tom qab ntawd txheej tom ntej no yog ua tiav kom cov khoom sib npaug sib npaug thiab txo deformation.
3. Txo qhov txiav quab yuam thiab txiav cov cua sov los ntawm kev hloov cov nyiaj txiav. Ntawm peb lub ntsiab lus ntawm kev txiav nyiaj, qhov nyiaj rov qab-kev koom tes zoo heev cuam tshuam rau lub zog txiav. Yog tias qhov nyiaj pub rau machining loj dhau lawm, qhov txiav quab yuam ntawm ib qho dhau los yog loj heev, uas yuav tsis tsuas yog deform cov khoom, tab sis kuj cuam tshuam rau lub rigidity ntawm lub tshuab cuab tam spindle thiab txo cov cuab yeej durability - tus naj npawb ntawm riam yuav tsum tau noj. Yog tias qhov rov qab raug txo qis, qhov kev ua haujlwm ntau lawm yuav txo qis. Txawm li cas los xij, kev kub ceev milling yog siv hauv CNC machining, uas tuaj yeem kov yeej qhov teeb meem no. Thaum txo tus nqi rov qab-txiav, tsuav yog tias cov khoom noj tau nce raws li thiab qhov ceev ntawm cov cuab yeej siv tshuab yog nce, txiav quab yuam tuaj yeem txo, thiab kev ua haujlwm tau zoo tuaj yeem ua kom tiav ib txhij.
4. Qhov kev txiav txim ntawm riam txav yuav tsum tau them sai sai rau. Rough machining qhia txog kev txhim kho kev ua haujlwm thiab ua raws li kev tshem tawm tus nqi ib chav tsev ntawm lub sijhawm. Feem ntau, kev txiav milling tuaj yeem siv tau. Ntawd yog, cov khoom siv ntau dhau ntawm qhov seem ntawm qhov khoob raug tshem tawm ntawm qhov ceev tshaj plaws thiab lub sijhawm luv tshaj plaws, thiab cov duab geometric contour yuav tsum tau ua kom tiav. Thaum ua tiav hais txog kev ua haujlwm siab thiab ua haujlwm siab, nws raug nquahu kom siv down milling. Vim hais tias lub thickness ntawm cov hniav cutter maj mam txo los ntawm qhov siab tshaj plaws mus rau xoom thaum lub sij hawm down milling, lub degree ntawm kev ua hauj lwm hardening yog ho txo, thiab cov degree ntawm deformation ntawm ib feem kuj txo.
5. Nyias-walled workpieces yog deformed vim clamping thaum ua; txawm tias ua tiav yog yam tsis muaj kev zam. Txhawm rau txo qhov deformation ntawm lub workpiece mus rau qhov tsawg kawg nkaus, koj tuaj yeem xoob qhov nias ua ntej ua tiav qhov kawg loj kom lub workpiece tuaj yeem rov qab mus rau nws qhov qub qub thiab tom qab ntawd nias nws me ntsis, tsuav yog tias lub workpiece tuaj yeem clamped (tag nrho) . Raws li kev xav ntawm tes), cov txiaj ntsig zoo tshaj plaws tuaj yeem tau txais txoj hauv kev no. Hauv lwm lo lus, qhov taw tes ua haujlwm ntawm lub zog clamping yog qhov zoo dua rau ntawm qhov chaw txhawb nqa, thiab lub zog clamping yuav tsum tau siv rau hauv kev taw qhia ntawm kev ua haujlwm zoo rigidity. Txhawm rau kom ntseeg tau tias lub workpiece tsis xoob, qhov me me ntawm lub zog clamping, qhov zoo dua.
6. Thaum machining qhov chaw nrog cov kab noj hniav, sim tsis txhob cia lub milling cutter plunge ncaj qha mus rau hauv ib feem zoo li lub laum thaum machining cov kab noj hniav, ua rau qhov chaw tsis txaus rau lub milling cutter kom haum raws li cov chips thiab tsis zoo nti tshem tawm, ua rau overheating, expansion. , thiab tawg ntawm qhov chaw - riam, tawg, thiab lwm yam tshwm sim tsis zoo. Ua ntej, laum lub qhov nrog ib tug tsav qhov loj tib yam li lub milling cutter los yog ib tug loj loj, ces milling nws nrog lub milling cutter. Xwb, CAM software tuaj yeem siv los tsim cov kev pabcuam muab kauv.