Additive Manufacturing Aluminium Alloy

A: Aluminium alloy yog cov hlau sib xyaw uas aluminium yog qhov tseem ceeb. Lwm cov ntsiab lus uas feem ntau ntxiv rau txhuas muaj xws li: Tooj, Magnesium, Manganese, Silicon, Tin, Nickel, Zinc.

Aluminium tsis tshua muaj siv nyob rau hauv nws daim ntawv ntshiab vim nws yog mos thiab tsis muaj zog. Lwm cov ntsiab lus txhim kho nws cov khoom siv kho tshuab thiab ua kom nws haum rau kev siv sib txawv.

A: Hauv kev tsim khoom, aluminium tsis tshua muaj ntshiab. Hloov chaw, cov tuam txhab tsim cov alloys uas ua rau kom muaj zog ntawm txhuas lub zog thiab nruj, thaum tswj hwm nws cov khoom tsim nyog. Ob tus kws tshaj lij thiab cov kws tshaj lij tsis yog cov kws tshaj lij feem ntau ua rau kev sib piv ntawm txhuas thiab hlau, vim tias ob lub hlau yog ob qho tib si siv rau ntau yam khoom.

Tab sis kev sib piv aluminium rau hlau yog me ntsis zoo li piv cov txiv apples rau txiv kab ntxwv: steel twb yog ib qho hlau, thaum txhuas yog ib qho khoom. Carbon steel, ib qho yooj yim hlau alloy, yog tsim los ntawm hlau (Fe) thiab carbon (C). Ntshiab aluminium, txawm tias nws cov khoom muaj txiaj ntsig ntau, yog mos heev thiab tsis muaj zog txaus rau feem ntau cov ntawv thov kev lag luam. Tab sis aluminium alloys tuaj yeem ua tau peb caug lub sij hawm muaj zog dua li cov ntshiab txhuas, thiab tsis tu ncua tshaj cov hlau hauv qhov sib piv ntawm lub zog-rau-qhov hnyav.

A: Aluminium vs Stainless Hlau: Qhov txawv qhov tseem ceeb

• Lub zog

Stainless hlau yog hnyav dua thiab muaj zog dua li txhuas. Qhov tseeb, txhuas yog nyob ib ncig ntawm 1/3 qhov hnyav ntawm cov hlau. Txawm hais tias stainless hlau muaj zog dua, aluminium muaj lub zog zoo dua rau qhov hnyav piv dua li stainless hlau.

• Kev coj ua

Hlau yog ib tug tsis zoo conductor ntawm hluav taws xob vim nws tuab tiv thaiv oxide txheej. Ntawm qhov tod tes, aluminium yog ib qho hluav taws xob zoo heev thiab thermal conductor.

• Nqi

Aluminium yog tus nqi ntau dua stainless hlau yog tias koj saib tus nqi raws li qhov hnyav. Tab sis, yog tias koj saib tus nqi los ntawm ntim, Aluminium yog tus nqi zoo dua vim tias koj tau txais cov khoom ntau dua.

• Thaum tshav kub kub Resistance

Thaum sib piv stainless hlau vs aluminium, stainless hlau muaj zoo dua tiv thaiv tshav kub nrog ib tug melting point ntawm 2500 ℉, thaum txhuas ua heev mos nyob ib ncig ntawm 400 ℉ nrog ib tug melting point ntawm 1220 ℉. Txawm li cas los xij, aluminium muaj qhov zoo dua cov hlau hauv qhov txias txias. Raws li qhov kub thiab txias, lub zog tensile ntawm aluminium nce, thaum hlau ua nkig nyob rau hauv qis kub.

• Corrosion Resistance

Aluminium tsis xeb; Txawm li cas los xij, nws ua corrode thaum raug ntsev. Stainless hlau yog heev corrosion resistant thiab tsis yooj yim xeb. Tsis tas li ntawd, stainless hlau yog non-porous uas ua rau nws muaj zog tiv thaiv corrosion.

• Environmental Impact, Recyclability

Stainless hlau yog lub npe hu rau nws zoo recyclability. Raws li Napa Recycling, steel yog cov khoom siv rov ua dua tshiab tshaj plaws hauv ntiaj teb. Nws muaj cov khoom sib nqus sib txawv uas ua rau nws yooj yim cov ntaub ntawv rov qab los ntawm cov dej khib nyiab rau kev rov ua dua tshiab. Tsis tas li ntawd, cov khoom ntawm cov hlau tseem tsis hloov pauv txawm tias muaj pes tsawg zaus cov hlau rov ua dua tshiab.

Txawm hais tias hlau yog cov khoom siv rov ua dua tshiab, txhuas yog cov khoom siv rov ua dua tshiab tshaj plaws. Raws li qhov tseeb, muab pov tseg aluminium yog qhov muaj txiaj ntsig ntau dua li lwm yam khoom siv hauv koj cov khoom siv rov ua dua tshiab. Ze li ntawm 75% ntawm tag nrho cov txhuas uas tsim nyob rau hauv Teb Chaws Asmeskas tseem siv niaj hnub no vim tias txhuas tuaj yeem rov ua dua thiab rov ua dua hauv qhov tseeb kaw. Yog xav paub ntxiv txog kev rov ua dua tshiab ntawm aluminium, mus saib ntawm Aluminium Association.

• Daim ntawv thov sib txawv ntawm Aluminium vs Steel

Aluminium thiab hlau yog nyob txhua qhov chaw. Yog tias koj saib ib ncig ntawm txhua qhov chaw, koj yuav pom qee yam uas muaj ib qho ntawm cov hlau no. Hauv qab no yog qee qhov kev siv ntawm stainless hlau thiab txhuas.

A: Pros thiab Cons ntawm Aluminium

Pros

• Nws yog qhov kev xaiv pheej yig dua
• Tsis hnov ​​tsw thiab impermeable
• Reflectivity thiab yooj
• High machinability thiab recyclability
• Corrosion Resistance
• High thermal conductivity thiab hluav taws xob conductivity

Cons

• Cov txheej txheem vuam nyuaj
• Corrodes sai sai hauv dej ntsev
• Tej zaum nws yuav cuam tshuam qhov saj ntawm cov khoom ntim khoom noj

A: Thaum txhuas thiab titanium yog cov kev xaiv zoo tshaj plaws rau ntau yam kev siv, lawv tsis haum rau txhua qhov project. Ua ntej xaiv cov hlau rau koj cov ntawv tshwj xeeb, koj yuav tsum xav txog ntau yam, suav nrog cov hauv qab no:

Daim ntawv thov

Cov yam ntxwv ntawm titanium thiab txhuas ua rau lawv zoo tagnrho rau ntau yam kev siv. Piv txwv li, titanium yog zoo meej rau cov ntawv thov uas xav tau cov ntaub ntawv kub-resistant. Cov no suav nrog kev siv tshuaj kho mob, cov khoom siv satellite, cov khoom siv hauv hiav txwv, thiab cov khoom siv.

Meanwhile, txhuas yog haum rau lub tsheb thiab tsheb kauj vab ncej, tshav kub dab dej, hluav taws xob conductors, me me nkoj, thiab lwm yam kev siv xav tau siab thermal conductivity.

Cov txheej txheem kev xaiv machinability

Cov khoom koj xaiv rau koj qhov project txiav txim siab geometrics ntawm koj cov khoom kawg. Tsis tas li ntawd, nws txiav txim siab txoj kev machining siv rau cov khoom siv thaum tsim koj qhov chaw. Aluminium yog sib xws nrog ntau yam txheej txheem. Nws muab cov khoom ua tau zoo nyob rau hauv rooj plaub thaum koj xav tau los ua cov khoom sai.

Tsis tas li ntawd, cov khoom siv no yooj yim dua rau kev ua haujlwm nrog ntau dua li titanium thiab yog qhov kev xaiv zoo dua rau kev ua qhov sib txawv nrog cov kev cai nruj.

Nqi

Tus nqi ntawm kev tsim khoom yog ib qho tseem ceeb uas koj yuav tsum xav txog thaum xaiv cov hlau rau koj qhov project. Feem ntau, txhuas yog cov hlau zoo siv rau kev ua haujlwm precision thiab ntau lwm cov txheej txheem prototyping. Fabricating Cheebtsam feem ntau pheej yig dua nrog txhuas dua nrog titanium.

Titanium muaj siab extraction thiab fabrication nqi piv rau txhuas. Nws tus nqi siab txwv nws daim ntawv thov. Txawm li cas los xij, titanium yog cov khoom siv zoo tshaj plaws rau koj lub hom phiaj machining yog tias tus nqi machining ntawm titanium tsis yog qhov nyuaj.

Qhov hnyav thiab muaj zog

Titanium vs. aluminium qhov hnyav thiab lub zog yog lwm qhov sib txawv ntawm cov hlau no. Titanium muaj qhov ceev ntawm 4500 kg / m3 nyob rau hauv sib piv rau 2712 kg / m3 ntawm txhuas. Yog li ntawd, titanium hnyav dua thaum piv rau txhuas. Qhov no txhais tau tias koj xav tau titanium tsawg dua hauv koj lub tshuab ua haujlwm kom muaj cov khoom sib sib zog nqus.

Titanium yog qhov kev xaiv zoo dua thaum nws los txog rau lub zog. Nws lub zog tensile sib txawv ntawm 230 MPa rau 1400 MPa piv rau txhuas, uas muaj cov npoo ntawm 90 MPa rau 690 MPa. Ntshiab titanium muaj zog tsawg, thaum ntshiab txhuas tsis muaj zog. Txawm li cas los xij, koj tuaj yeem ua ke aluminium nrog lwm cov hlau alloys los txhim kho nws lub zog raws li koj xav tau.

Cov khoom pov tseg

Machining pov tseg yog lwm qhov tseem ceeb tshaj plaws thaum tuav txoj haujlwm tsim qauv geometrics. Cov qauv tsim qauv geometrics tuaj yeem txwv koj txoj kev machining txawm tias koj xaiv cov khoom. Yog li ntawd, milling tawm cov khoom ntau dhau los ua yam tsis muaj kev zam. Qee lub sij hawm, feem ntau cov neeg tsim khoom siv aluminium rau prototyping thiab titanium yog siv rau cov khoom me me ntawm cov khoom tshwj xeeb. Feem ntau, xaiv cov khoom pheej yig txhuas tshaj titanium yog qhov pom zoo vim nws pab txo nqi tag nrho.

Aesthetic Requirements

Qee qhov milled feem ntau yuav tsum tau siv cov xim tshwj xeeb rau kev ua kom zoo nkauj. Titanium muab lub ntsej muag nyiaj uas zoo li tsaus dua thaum nyob hauv qab lub teeb. Meanwhile, aluminium muaj ib tug silvery-dawb tsos. Cov khoom koj xaiv yuav txiav txim siab seb koj cov khoom puas muaj xim nyiaj lossis xim grey. Txawm li cas los xij, ob qho tib si cov ntaub ntawv tuaj yeem siv ntau lwm cov txheej txheem hlau ua tiav xws li hlaws blasting, polishing, chrome plating, thiab lwm yam.

Xaus

Titanium thiab txhuas yog cov hlau uas muaj cov khoom zoo kawg li, muaj txiaj ntsig zoo, thiab kev siv. Txawm hais tias yuav luag zoo sib xws, lawv muaj cov ntawv thov tus kheej uas ib qho tsim nyog dua li lwm tus. Thaum titanium zoo tagnrho rau cov ntawv siv hluav taws xob tiv taus, aluminium muaj qhov zoo tshaj plaws thermal conductivity uas koj qhov project xav tau.

A: Ob leeg hlau muaj cov khoom siv tau zoo thiab tuaj yeem siv tau rau lub sijhawm ntev. Txawm li cas los xij, titanium yog thawj zaug ntawm kev ua haujlwm ntev thiab rigidity. Nws cov khoom siv nyob rau xyoo tsis muaj kev hnav lossis tsim kua muag. Titanium muaj kev tiv thaiv corrosion zoo heev thiab kav ntev dua vim tias nws tuaj yeem tiv taus kev ntxhov siab.

A: Nws yog qhov yooj yim zoo nkauj kom sib txawv titanium los ntawm txhuas siv lawv cov xim tshwj xeeb. Titanium muaj xim nyiaj tsaus, thaum txhuas feem ntau txawv ntawm silvery dawb mus rau dull grey ntawm ntau qhov chaw. Tsis tas li ntawd, titanium xav tias nyuaj dua li txhuas. Aluminium feem ntau rub tawm ntawm cov khoom muag muag thaum thov, thaum titanium tsis.

A: Cov khoom siv AlSi7Mg muaj qhov tsis muaj zog-txhim kho cov nyhuv hardening vim qhov ntim qis ntawm Si, ua rau qis zog tensile, qis hardness, thiab elongation siab dua li cov khoom siv AlSi10Mg. Tom qab kev kho cua sov, lub tensile thiab yield zog ntawm ob cov ntaub ntawv poob, thiab elongation nce.

A: Alsi10MG yog aluminium alloy nrog cov kws kho mob zoo heev nrog kev ua kom qis dua qub thaum muab cov kev xaiv sib luag thiab hloov pauv tom qab ua cov kev xaiv.

Vim tias nws muaj lub zog siab, muaj zog hardness thiab siab thermal conductivity, nws yog siv rau cov khoom uas raug rau siab loads.

Daim ntawv thov muaj xws li vaj tse thiab ductworks, cav qhov chaw, cov cuab yeej tsim khoom thiab pwm rau ob qho tib si prototyping thiab kev tsim khoom.

A: Feem ntau siv MIG txhuas vuam hlau yog ER4043 thiab ER5356. ER4043 yog lub hom phiaj dav dav MIG vuam hlau siv los vuam 2014, 3003, 3004, 4043, 5052, 6061, 6062, thiab 6063 aluminium alloys. Cov welds muab siab ductility thiab zoo heev tiv thaiv cracking.

A: Feem ntau hais lus, cov hmoov hlau siv hauv cov hlau 3D tshuab luam ntawv suav nrog cov cuab yeej steel, stainless hlau, martensitic steel, ntshiab titanium thiab titanium alloys, aluminium alloys, nickel-based alloys, tooj liab-raws li alloys, cobalt-chromium alloys, thiab lwm yam.

A: Alloy 3003: Feem ntau siv ntawm tag nrho cov txhuas alloys. Lub lag luam ntshiab txhuas nrog ntxiv manganese kom nws lub zog (20% muaj zog dua li qib 1100). Nws muaj kev tiv thaiv corrosion zoo heev, thiab ua haujlwm tau zoo. Qib no tuaj yeem sib sib zog nqus los yog spun, welded lossis brazed.