7075 Ultra-thick Aerospace Aluminum Forging Plate

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7075 Ultra-Tuab Aerospace Aluminium ALUMINING PHAJ

7075 Ultra tuab aviation Aluminium Forging phaj yog qhov muaj zog, ua kom muaj zog, cov khoom lag luam pwm, thiab cov khoom siv tshuab ua kom zoo nkauj {3}

Xa kev nug

1.}} cov khoom siv & cov txheej txheem tsim khoom

7075 aluminium alloy (Tshooj Ams 4045, Astm B247) sawv cev rau cov khoom siv hnyav ua kom zoo rau kev ua tau zoo-rau-hnyav kev ua haujlwm tshwj xeeb:

Tseem Ceeb Alloying Ntsiab:

Zinc (ZN): {5.1-6.1% (thawj ntxiv dag zog ntxiv)

Magnesium (MG): {2.1-2.9% (nag lossis daus ua kom tawv)

Tooj Liab (Cu): 1.2-2.0}% (lub zog txhim kho)

Chromium (CR): 0.18-0.28% (corrosion tsis kam)

Cov khoom siv hauv paus:

Aluminium (Al): Ntau dua lossis sib npaug rau 87.1% (tshuav nyiaj li cas)

Kev tswj kev impurities:

Hlau (FE): Tsawg dua lossis sib npaug rau 0.50% Max

Silicon (si): tsawg dua lossis sib npaug rau 0.40% max

Manganese (MN): tsawg dua lossis sib npaug rau 0.30% Max

Titanium (ti): tsawg dua lossis sib npaug rau 0.20% Max

Ultra-tuab Forging Txheej Txheem:

Hwm Ingot Ntau Lawm:

Nqus-degassed thawj txhuas

Peb lub chaw lim dej los ntawm cov lim dej tej hub

Direct-Chill (DC) Casting Nrog Cov Khaub Ncaws Txias

Homogenization kev kho:

{{0460-480℃rau24-48}} sijhawm (tuab-nyob)

Khoos phib tawj-tswj thermali profiles

Deg Zauv:

Scalping yam tsawg kawg nkaus 12 hli ib tog

Ultrasonic Soj ntsuam rau International Zoo

Ntau hom kev nco qab forging:

Thaum pib tawg: {410-430 degree

Thaum Kawg Forging: 360-380 degree

Deformation piv: 4: 1 yam tsawg kawg

Ntau qhov kev coj ua ua haujlwm rau kev ua kom zoo tshaj plaws Isotropy

Tshuab Kev Kho Mob Kub:

465-480℃rau thickness-tshwj xeeb ntev

Kev Tswj Hluav Taws Xob Cov Hluav Taws Xob

Quenching:

Polymer quenchant nrog tswj kev pom zoo

Agitation tus nqi: {3-5 m / s yam tsawg kawg nkaus

Core cooling rate: >50 Qib / Sec Tsawg

Tswj ncab:

1.5-3.0% decormation

Kev laus cuav:

T651 / T7351 Tempers: Ntau theem kev laus voj voog

Tswj qhov kub thiab txias: ± 2℃qhov siab tshaj plaws

Txhua txoj kev tswj hwm kom tiav traceavility nrog Digital saib xyuas kev tsim khoom .

{2.} cov khoom siv mechanical ntawm ultra-tuab 7075 forged phaj

Ntiag tug	Yam tsawg kawg (T651)	Raug (T651)	Kuaj Tus Qauv
Qhov kawg tensile lub zog	530 MPa	565-590 mpa	ASTM E8 / E8M
Tos lub zog (0.2%)	455 MPa	495-520 mpa	ASTM E8 / E8M
Elongation (2 nti)	7%	9-12%	ASTM E8 / E8M
Txhab Fracture (K₁C)	26 Mpa√m	28-31 mpa√m	ASTM E399
Tawv muaj zog	330 MPa	340-360 mpa	ASTM B769
Bearing lub zog (E / D =2.0)	785 mpa	800-850 mpa	ASTM E238
Qeeb zog lub zog (10⁷)	160 MPa	170-190 mpa	ASTM E466
Hardness (Brinell)	140 HB	145-155 hb	Astm E10

Los ntawm-tuab ua tau zoo:

Cov Hom Vog<8% between surface and core (up to 250mm thickness)

Kev Tawm Tsam (L: L 4. LT: ST): 1.00: 0.95: 0.85 rau lub zog tensile

Cov tub ntxhais-rau-nto hardness variation: tsawg dua los yog sib npaug rau 10 hb qhov siab tshaj plaws

{{03. microstructural tshuab rau ultra-tuab seem

Cov kev ua haujlwm tseem ceeb:

Tus qauv nplej tswj:

Unrecrystallized, fibrous grain morphology

CR-dispersoid pinning ntawm cov ciaj ciam nplej

Tshwj xeeb cov thermal profile rau tuab seem

Daus precipion engineering:

Mgzn₂ (η / η ') precipitation loj: 5-15 nm

Al₂cumg (S-theem) faib

Al₇cu₂fe Intermetallic tswj

Kev Ua Haujlwm Qis:

Polymer concentration: 12-18%

Agitation System: Ntau yam kev taw qhia siab High-velocity ntws

Qhov tsawg kawg nkaus Center txias tus nqi: 55℃/ sec

Cov yam ntxwv microstructural:

Lis loj: Astm 8-10 (15-30 μm)

Noob pain exatio: 3: 1 txog 5: 1 (l: st)

Recrystallized Ntim Feem Ntau:<15% maximum

Precipitate Density: >10¹⁷ / cm³

Incalusion Ntsuam Xyuas: tsawg dua los yog sib npaug rau 0.3 ib ashtm e45

4.} Qhov ntev tshaj tawm & kev thev taus

Chaw ua uas tsis tau haus	Cov Qauv Qeb	Aerospace thev taus	Kev Lag Luam Ua Lag Luam
Qhov tuab	100-300 hli	± 0.8mm lossis ± 0.5% *	1.5mm lossis ± 1.0% *
Qhov dav	1000-2500 hli	Txhaj Tshuaj	6 hli
Qho ntev	2000-8000 hli	5 hli	12 hli
Huv	N/A	0.1% ntawm qhov ntev	0.3% ntawm qhov ntev
Ua kom zoo siab	N/A	0.2% ntawm tuab	0.5% ntawm tuab
Nto roughness	N/A	3.2 μm RA Max	6.3 μm RA Max

* Saib qhov twg yog qhov ntau dua

Ultra-tuab tshwj xeeb tsis:

Ntws: 2.81 g / cm³ (± 0.02)

Cov mis hnyav: Thickness (hli) × qhov ntev (m) × 2.81=hnyav (kg)

Machining Allowance: Pom zoo 15mm ib sab rau qhov tseem ceeb

Ultrasonic kuaj: 100% Volumetric soj ntsuam ib AMs-std -2154 kawm a

5. Kev Kho Kub Kub & Cov Kev Xaiv Kub

Kev Tsav Tsheb	Cov ntsiab lus	Kev Ua Haujlwm Zoo Tshaj Plaws	Phiaj Kev Thov
T651	Daws cov cua sov kho, ncab (1.5-3%), artificially aged	Tshaj Plaws Muaj Zog	Thawj lub dav hlau wildrate
T7351	Daws cov cua sov kho, ncab, overaged	Txhim kho Scc tsis kam, zoo dua qub	Tseem ceeb aerospace Cheebtsam
T7651	Daws cov cua sov kho, ncab, tshwj xeeb heev	Kev Ntsuas Lub Zog thiab Scc Kuj	Nthuav Vaj Wing Qauv

Kev kho tshav kub kub:

Tshuab Kev Kho Mob Kub:

Kub: 465-480} degree

Lub sijhawm: 1 teev rau 25 hli tuab (yam tsawg kawg nkaus)

QUPen ncua:<12 seconds maximum

Kev laus cuav:

T651: 120 Qib rau 24 teev

T7351: 115 Degree rau 6-8}+ 175℃rau8-16 teev

Kev Cia Siab Kub Kub: ± 2 degree

6. tshuab machining & tsim cov kev txiav txim siab

Kev phais	Lub cuab yeej	Pom zoo tsis	Kev txiav txim siab rau cov tuab tuab tuab
Kev kwv yees	Carbide	VC {=300-600 m / min, fz =0.1-0.3 hli	Kauj ruam-nqis mus kom ze, ua rau qhov tob tob
Lub xov	PCD / CBN ntxig	Vc =600-1200 m / min	Lub teeb txiav, ceev npoo ceev
Lub qhov tob tob drilling	Carbide coolant-pub	VC =60-120 m / min, fn =0.1-0.3 hli / rev	Peck drilling qhov tseem ceeb
PACE MILLING	PCD / carbide	Vc =500-1000 m / min	Puag Geometry

Kev Tsim Kho Cov Kev Ua Haujlwm Zoo:

Cov kua dej: dej-soluble coolant nrog pH 8.5-9.5

Chip tswj: high-siab txias rau kev khiav tawm

Fixturing: Tshaj tawm Clamping kom txo qis distortion

Txiav cov phiaj xwm: nce milling rau kev ua kom pom kev zoo tiav

Realual Kev Tswj Xyuas Kev Nyuaj Siab: Kev ntxhib cav, kev nyuaj siab ua rau, tiav tshuab

{{07. corrosion Kuj & Kev Tiv Thaiv Cov Tshuab

Ib puag ncig hom	Kev Ntsuas	Kev Tiv Thaiv Txoj Kev	Kev Pabcuam Lub Neej Cia Siab
Muaj cua	Tswj kav	Anodizing + Primer / Topcoat	8-12} xyoo nrog kev saib xyuas
Tubrog nkoj marine	Tsis zoo-ncaj ncees	Anodizing + Chromated Primer + Topcoat	5-8} xyoo nrog kev saib xyuas
Kev ntxhov siab corrosion	Zoo (T7 Tempers)	Overaging + Nto Compression	Qhov tseem ceeb txhim kho dhau T6
Kho	Zoo (T7 Tempers)	Kev Kho Mob Kub Kub	Exco ntaus nqi ntawm ea lossis zoo dua

Cov Kev Xaiv Deg:

Anodizing:

Hom II (Sulfuric): 10-25 μm

Hom III (nyuaj): 25-75 μm

Chromic: {2-8 μm rau ntau tshaj plaws nkees ua tau zoo

Kev hloov dua tshiab txheej:

Chromate ib mais-dtl -5541 chav kawm 1a

Kev sib cav sib tw chromium pretreatment

Tshuab:

High-disds Epoxy Primer

Polyurethane Topcoat

Mechanical saum npoo txhim kho:

Tua cov panenate (0.008-0.012 kev siv)

Laser shock coening

{{08. Cov Khoom Siv Rau Lub Cev Rau Cov Kws Tsim Khoom Lag Luam

Ntiag tug	Tus nqi	Tsim Muaj
Ceev	2.81 g / cm³	Qhov hnyav suav rau cov tswv yim dav hlau
Melting ntau	477-635 degree	Kev txwv kev vuam / Kev Kho Mob Cua sov
Thermal conductivity	130-150 W/m·K	Thaum tshav kub dissipation hauv cov khoom siv thauj khoom siab
Hluav Taws Xob Kev Tshaj Tawm	33-40% IACs	EMI Tiv Thaiv Kev Siv
Cov cua sov tshwj xeeb	960 J / Kg · K	Kev muab cov calval
Thermal Expansion (CTE)	23.4 ×10⁻⁶/K	Thermal Kev Nyuaj Siab Kev kwv yees
Cov tub ntxhais hluas lub modulus	71.7 GPA	Tus qauv txhav txhav txhav hauv Airframe Tsim
Poisson tus piv	0.33	Tseem Ceeb rau FEA ua qauv

Cov kev txiav txim siab tshwj xeeb rau cov kab tuab tuab:

Cov Kev Ntseeg Txog Kev Nyuaj Siab: Los ntawm-Thickness Mapper Yuav Tsum Tau

Thermal inertia: qeeb teb rau qhov kub hloov

Sib sib zog nqus cov khoom siv zog: cov khoom lag luam zoo ib yam los ntawm ntu

9. Qhov Kev Ntsuas Zoo Li Cas & Kev Ntsuam Xyuas Raws Txoj Cai

Yuav Tsum Soj Ntsuam Kev Nyab Xeeb:

Tshuaj lom neeg cov tshuaj:

Optical Opission Spectroscopy

Cov ntaub ntawv pov thawj ntawm txhua qhov tseem ceeb thiab kev tsis txaus siab

Kev Kuaj Neeg Kho:

Puv Tensile Xeem (L, LT, ST lus)

K₁c Kev Ntsuas Cov Lus Ntsuas

Kev Ntsuam Xyuas Hardness (25mm Daim phiaj tsawg kawg nkaus)

Tsis yog-ua kev sim siab:

Ultrasonic kev kuaj xyuas ib AMs-std -2154 kawm a

Kev kuaj xyuas kev soj ntsuam ntawm cov chaw tseem ceeb

Microstructioning:

Lis loj thiab morphology

Inclions ntsuam xyuas ib astm e45

Cov Ntawv Pov Thawj Cov Ntaub Ntawv:

Daim Ntawv Qhia Cov Khoom Xeem (Mtr) ib qho en 10204 3.1 / 3.2

Tshuaj Ntsuam Xyuas Tshuaj Txheeb Xyuas

Cov Khoom Siv Neeg Kho Tshuab Cov Khoom Siv

Chaw Kho Mob Thaum Tshav Kub

NDT cov ntaub ntawv nrog kev lees txais cov txheej txheem

10. Daim ntawv thov & Kev Ua Tau Zoo

Thawj Phau Ntawv Thov:

Bulkhead qauv

Koojtis Spars thiab nqa-los ntawm cov qauv

Tsaws Iav Cheebtsam

Fuselage thav ntawv thiab cov neeg muaj hnub nyoog

Tuab seem cov tswv cuab

Sab saum toj tis tawv

High-load fittings

Kev ua tau zoo rau cov ultra-tuab seem:

Uniform cov khoom siv thoob plaws qhov tuab

Superior puas kam kam

Txhim kho kev ntxhov siab corrosion tsis kam nyob rau hauv T7 Tempers

Txhim kho los ntawm-tuab lub zog

Zoo tshaj qhov tuab ntu

Zoo ib yam zoo los ntawm kev tswj hwm nruj

Cim npe nrov: 7075 ultra-tuab aerospace Alertospace Aluminium Forging phaj, Tuam Tshoj 7075 ultra-tuab aerospace Alertospace Alertorters, lwm tus neeg, Hoobkas