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2024 T351 Phaj Txhuas

Nrog kev nce qib nroos ntawm kev siv thev naus laus zis thiab kev nthuav dav ntawm cov aviation kev ua lag luam, qhov kev thov rau kev ua tau zoo aluminium alloy cov ntaub ntawv kuj tseem nce. Qhov kev thov rau 2024 cov paib txhuas cov hlau, raws li kev ua haujlwm zoo heev, yuav txuas ntxiv mus ntxiv.

Xa kev nug

1. Cov khoom siv nrog & tsim cov txheej txheem tsim khoom

2024 Alloy Alloy (Tshooj Ams 4035, Astm B209, ENTTM B209, EN 485) yog lub siab-mg alloy encoyered rau cov kev thov tseem ceeb. T351 Templal Boundure Kev nyuaj los ntawm kev kho kom sov, tswj kev ncab, thiab ntuj laus:

Alloy Scienceistry:

Tooj (CU): 3. {8-4. 9% (nag lossis daus tawv tawv)

Magnesium (mg): 1. 2-1. 8% (S-Theem Tsim)

Manganese (MN): {{{{{}}. {30-0. 9% (grain refinement)

Hlau (FE): tsawg dua los yog sib npaug rau 0. 50% Max

Cov khoom siv hauv paus:

Aluminium (Al): Ntau dua lossis sib npaug rau 93.5% (tshuav nyiaj)

Kev tswj kev impurities:

Zinc (Zn): Tsawg dua lossis sib npaug rau 0. 25% Max

Chromium (CR): Tsawg dua lossis sib npaug rau 0. 10% Max

Silicon (Si): tsawg dua lossis sib npaug rau 0. 50% Max

Precision Thermomechanical Ua:

Direct Direct Casting: 700-750 degree molten kub

Homogenization: {{480-495 degree rau 12-24 teev

Kub Rolling: Txo ntawm 400-440 degree

Kev daws kev kho kom sov sov: {493-502 degree (± 3 degree) rau 1. {{Teev

Water Quenching: Cooling rate >170 degree \/ sec

Ncab: ua mus tas li 1. 5-3}% (T351 hais meej)

Ntuj Laus: {30-120 hnub ntawm qhov kub cua sov

Muaj ntawv pov thawj rau Ams 4035 thiab NAS 402 cov lus qhia tshwj xeeb nrog tag nrho aerospace traceazeability los ntawm yaj rau phaj.

2. Cov khoom siv kho tshuab ntawm T351 Lub Xeev Tem

Ntiag tug	Tsawg li tsawg tau	Zoo li ib txwm	Kuaj Tus Qauv	Aerospace qhov tseem ceeb
Qhov kawg tensile lub zog	415 MPa	440-480 mpa	ASTM B557	Zoo dua rau Mp3 npau taws
Tos lub zog (rp 0. 2)	275 mpa	300-320 mpa	ASTM B557	85% kev tuav hauv 150 degree
Elongation (50 hli gauge)	8%	10-15%	ASTM B557	Siab dua nyob rau hauv rolling kev taw qhia
Tawv muaj zog	255 MPa	285 MPa	ASTM B831	65% ntawm tensile lub zog
Xyooj lub zog	580 MPa	620 mpa	ASTM E238	E \/ D {{{0}}}. 0 Mob
Qeeb zog lub zog (10⁷)	140 MPa	160 MPa	ASTM E466	R =0. 1 tus mob
Hardness (Brinell)	120 HB	125-135 hb	Astm E10	Raws li los ntawm ntu
Txhab Fracture (K₁C)	35 mpa√m	40 mpa√m	ASTM E399	Lt kev qhia txog kev nyiam
Txaus siab Txais	275 mpa	300 mpa	ASTM E9	Tav \/ Cov Ntawv Thov

3. Microstructure & Thermommehanical ua

T351 Tauj dej tshwj xeeb:

Tshuab Kev Kho Mob Kub:

Kub: 495 ± 5 degree

Soak lub sijhawm: 30 min \/ inch tuab

QUPen ncua:<10 seconds

Ncab txheej txheem:

Kev teeb tsa tau: 2. 0-2. 5%

Kev Ua Phem Kev Zam Txim Siab: ± 0. 15%

Ntuj Laus Kining Kinetics:

80% cov khoom hauv 4 hnub

Tag nrho cov stabilization nyob rau hauv 30 hnub

Cov yam ntxwv microstructural:

Lis qauv: uncrinestallized nrog pancake nplej

Nam natio: {{{}}}: 1 hauv yob cov kev taw qhia

Prechipite phases:

θ '(al₂cu) platelets (10-100 nm)

S (al₂cumg) phases

Dispersoids:

Al₂₀cu₂mn₃ Tebchaw

Dislocation Qwj: 5-8} × 10¹⁰ \/ cmo

Subgraine loj: {1-3 μm

4. Sab Nraud Cov Lus Qhia & Kev Ua Phem

Chaw ua uas tsis tau haus	Aerospace thev taus	Kev Lag Luam Ua Lag Luam	Sau ntawv
Thickness (3-150 hli)	±0.3%	±0.7%	Ams 4035 chav kawm a
Dav (1200-3000 hli)	Txhaj Tshuaj	12 hli	Ntug txiav txim siab tsam 25 hli
Ntev (2400-12000 hli)	{{0 {0}} \/ -0 hli	{{0 {0}} \/ -0 hli	Precision txiav muaj
Huv	{{0 {}}. 2% ntawm qhov ntev	{{0 {}}. 5% ntawm qhov ntev	Rau NAS 402 xav tau
Li zaum	1 hli \/ 1000 mm	3 hli \/ 1000 mm	Tseem ceeb rau spars
Nto roughness	{{0 {0}}. {4-0. 8 μm RA	1. {{0-3. {0 μm ra	Daim iav tiav chaw xaiv

Kev Muaj Peev Xwm Tshwj Xeeb:

Oversize Daim Hlau: Txog 4000Mm Dav × 15000mm ntev

Kev tshuaj ntsuam ultrasonic: ASTM B594 qib AA

Ntug tej yam mob: machined, sheared, lossis abrasive txiav

Cov mis hnyav: Thickness (hli) × dav (m) × 2. {} Qhov hnyav (kg)

5. Corrosion Kuj & Kev Tiv Thaiv Cov Tshuab

Huab cua	Ua yeeb yam	Kev Tiv Thaiv Txoj Kev	Ib Daim Ntawv Thov Aerospace
Vaum nti	Ncaj	Alclad cov qauv pom zoo	Daim tawv nqaij tawv
Ntsev Tshuaj (500HR)	Pluag	Anodizing + Primer yuav tsum muaj	Sab Nraud Cov Qauv
Kev ntxhov siab corrosion	Tswj kav	Kev Txhawb Nqa (T851) yeem	Cov khoom siv tseem ceeb
Kho	Pluag	Cladding tseem ceeb	Koojturaces
Roj Tank Ib puag ncig	Zoo	Txheej Txheem Roj Taws Tank Tsho	Koojtis Box Cov Qauv
Galvanic corrosion	Ncaj	Kev sib cais Txuas Txuas	Pob qij txha fastened

Cov Tshuab Deg:

Alclad txheej: {5-10% tag nrho cov tuab tuab ib sab

Anodizing:

Chromic acid: 2. {5-5. {{2} μm

Sulfuric acid: 10-25 μm

Primers:

Epoxy Primers (8-15 μm)

Chromate Primers (5-8 μm)

Topcoats:

Polyurethane Topcoats ({0}} μm)

Feem ntau Roj Tank Seevants

Cov tshuaj hloov pauv: Titanium-zirconium tshuab

6. Machining Khoom Siv Hluav Taws Xob

Kev phais	Lub cuab yeej	Pom zoo tsis	Aerospace xyaum
Milling	Carbide ntxig	VC {=600-1000 m \/ min, fz =0. 15 hli	SIAB RPM Machining
Kev drilling	Carbide Hnyiab	VC =80-150 m \/ min, fn =0. 1 hli \/ rev	Peck drilling yuav tsum tau
Txoj siav	PCD \/ CBN cov cuab yeej	Vc =600-900 m \/ min	Qhuav machining ua tau
Tus rov ua dua	Coated Reamers	Vc =20-30 m \/ min	H8 zam kev ua tiav
Kev sib tsoo	CBN log	VC =30-35 m \/ sec	Nto tas ra 0. 2μm
Edm	Graphite electrodes	Tam sim no: 15-30 a	Precision Cinity Machining

Tsim kev txiav txim siab:

Khoov radius: 3t yam tsawg kawg (t {1}} tuab)

Kev Them Nyiaj Software: 2-4} degree overbend yuav tsum

Kev Sib Tw Kub: 150-190} degree pom zoo

Lub Hnub Nyoog Sau Nyiaj Tsim: {120-130 degree rau 8-24 teev

Tom qab kev kho cua sov: txwv tsis pub muaj T351

7. Vuam & Koom Tes Nrog Technologies

Cov txheej txheem kev txwv:

Fusion vuam: feem ntau tsis pom zoo

Lwm txoj hauv kev:

Riveting: Cherrymax Aerospace Rivets

Adhesive Bonding: fm -300 Zaj Duab Xis Adhesive

Kev sib txhuam do vuam: tsawg daim ntawv thov

Laser Beam Vuam: Kev sim tsuas yog

Brazing: Lub Tshuab Nqus Tsev Cua Sov Brazing

THIAB KHO VUAM SCOROCOL:

Khoom Siv Khoom: Tsuas yog T351 Phaj

Muab tub lim hlau: 4043 lossis 2319 alloys

Preheat: {120-150 degree yuav tsum tau ua

Tom qab-Weld laus: 120 degree \/ 24hr pom zoo

NDT yuav tsum muaj: zas tus neeg tsim nyog yuav tsum tau ua

8. Lub cev rau Aerospace tsim

Ntiag tug	Tus nqi	Kev Ua Haujlwm Thov Tseem Ceeb
Ceev	2.78 g \/m³	Qhov hnyav-tseem ceeb qauv
Melting ntau	500-635 degree	Firewall Kev Tiv Thaiv Txwv
Thermal conductivity	121 W/m·K	Cov cua sov tshav kub
Hluav Taws Xob Kev Tshaj Tawm	34% IACS	Kev Siv Cov Ntaub Ntawv Vaj Tse Vaj Tse
CTE ({20-100 degree)	22.9 ×10⁻⁶/K	Thermal Kev Nyuaj Siab suav
Cov tub ntxhais hluas lub modulus	73.1 GPA	Wing Flexure Qauv
Poisson tus piv	0.33	Finite calter
Qaug zog kev loj hlob	4 × 10⁻⁴ mm \/ kev voj voog	Kev Zam Txim Rau Tsim
Damping muaj peev xwm	0.001	Kev co-rhiab Cheebtsam

9. Zoo Tswj & Ntawv Pov Thawj

Kev Ntsuas Cov Txheej Txheem:

Tshuaj Ntsuam Xyuas Tshuaj: Txheem OES rau ib ASTM E1251

Kev Kuaj Neeg Kho:

Ntev \/ transverse cov qauv

Tensile cov ntawv xeem rau ib 1000kg ntau

Txhab Kev Ntsuas Cov Lus Qhia:

K₁C qhov tseem ceeb rau txhua lub tais xa khoom

Corrosion kuaj:

Cov cuab tam muaj astm g66

Exco Ib ASTM G34

NDT yuav tsum muaj:

Ultrasonic rau ntawm 1131

Cov tshuaj lom fluorescent

Eddy tam sim no rau saum npoo flaws

Kev tswj hwm microstructure:

Lis loj rau ib astm E112

Precipition faib tawm

Aerospace ntawv pov thawj:

As9100 Rev D Cov Txheej Txheem Zoo

Nadcap Acredited:

Kev kho tshav kub

Kev Lag Luam

Ndt

Mil-specs:

Mil-a -83377

Mil-prf -6855

OEMS Pom Zoo: Boeing D6, Airbus lub hom phiaj

EU Aviation Kev Nyab Xeeb: Easa Form 1

10. Muaj cov ntawv thov & tuav

Aerospace Cov Ntawv Thov:

Dav hlau Fuselage Tawv

Wining Streders thiab Ribs

Tsaws Iav Cheebtsam

Cav mounting qauv

RotorcTcraft Platforms

Earecraft roj tso tsheb hlau

Missile Airframes

Davhlau Tswj Xyuas Chaw

Cov Khoom Siv Tuav Txoj Cai:

Kev Cia Cai Cia:

Kub: 15-30} degree

Vaum noo:<45% RH

Kev rho tawm los ntawm cov ntaub ntawv corrosive

Stacking yuav tsum:

Ntoo dunnage ntawm 300mm sib nrug

Teeb Qhov Siab Tshaj: 800mm

Cov ntawv tiv thaiv tiv thaiv

Lifting Systems:

NQUS PLUMP PAD NQA

Kis Txoov Hlais

Tsis yog kev sib nqus ua ke tov

Kev ceev faj kev ceev faj:

VCI (vapor corrosion inhibitor) tiv thaiv

Desiccant Pob

WeatherProf ntawm cov ntaub qhwv

Tom qab ua:

Tam sim ntawd nto tu

Kev tiv thaiv ib ntus

Kev Tswj Xyuas Lub Sijhawm

Sij hawm-txwv cia ua ntej siv

Cim npe nrov: 2024 T351 Aluminium phaj, Tuam Tshoj 2024 T351 Phaj Cov Khoom Siv, Chaw muag khoom, Hoobkas