What Are The Uses of Aluminum Alloys 2024 and 7075

 Aluminum alloy 2024 t3 is considered an aircraft alloy due to its strength, and it also has excellent fatigue resistance. Welding is generally not recommended. Typical uses for 2024-T3 Alclad aluminum sheet are fuselage and wing skins, roofs, aircraft structures, and repair and restoration due to its lustrous and smooth finish (2024-T3 Alclad). Its ultimate strength is 62,000 PSI and its shear strength is 40,000 PSI.

2024 aluminum alloy is widely used in various special applications due to its excellent performance. Here are some common special uses of 2024 aluminum alloy:

1. Aerospace: Due to its excellent strength and lightweight characteristics, 2024 aluminum alloy is often used to manufacture aircraft structural parts, aircraft shells, and aircraft engine parts. Its good processing performance and corrosion resistance also make it an ideal choice for the aerospace field.

2. Automobile manufacturing: In the automotive manufacturing industry, 2024 aluminum alloy is often used to manufacture components such as body structures, engine parts, wheels, and suspension systems. Its high strength and excellent fatigue resistance can improve the safety and durability of the car.

3. Sports equipment: Due to its good strength and durability, 2024 aluminum alloy is often used to manufacture various sports equipment, such as bicycle frames, golf clubs, and ski parts. Its lightweight characteristics also help to improve the performance of sports equipment.

7075 aluminum alloy is a high-strength, heat-treatable deformable alloy developed by Alcoa in 1943. The alloy contains zinc, magnesium, chromium and copper as hardeners, as well as small amounts of iron, silicon, manganese and titanium. After heat treatment, Al-7075 is much stronger than carbon steel. Its common tempers are 7075 t351, T651, T73, T76, T7651,etc.

The excellent strength characteristics of 7075 aluminum make it an ideal choice for manufacturing aircraft main structures. Its tensile strength is as high as 500MPa and its yield strength is far higher than that of general industrial pure aluminum. It can effectively resist aerodynamic loads and other complex stresses while ensuring structural stability.

Original source: https://www.aircraft-aluminium-sheet.com/a/what-are-the-uses-of-aluminum-alloys-2024-and-7075.html

2000 Series Aluminum: AA2024

 The aerospace field mainly develops high-strength, high-toughness and corrosion-resistant aluminum alloys to meet the harsh use conditions of aerospace. The 2xxx series aluminum and 7xxx series aluminum alloys are more widely used. The main components of the 2000 series aluminum alloy are aluminum (Al), copper (Cu), and magnesium (Mg).

The corrosion resistance of the 2xxx series alloys is not as good as most other aluminum alloys and intergranular corrosion may occur under certain conditions. Therefore, these aluminum alloys are usually clad with high purity alloys or 6xxx series magnesium silicon alloys to provide electroplating protection to the core material, which greatly improves corrosion resistance.

The composition of 2024 aluminum alloy roughly includes 4.3-4.5% copper, 0.5-0.6% manganese, 1.3-1.5% magnesium and less than 0.5% silicon, zinc, nickel, chromium, lead and bismuth. It can only be welded by friction welding and has moderate machinability.

2024 aluminum alloy is an alloy frequently used in the aerospace industry. It is a high-strength alloy suitable for projects requiring high strength-to-weight ratio and fatigue resistance. Therefore, it is mainly found in wing and fuselage structures that are often subjected to tension.

The newest and best performing alloy in the 2000 series is 2524 aluminum alloy, which has significant improvements in toughness and fatigue resistance compared to 2024 aluminum alloy and has been successfully used in the B777 passenger aircraft.

For fuselage applications, the fracture toughness of 2524-T3 alloy is improved by 15-20%, and the fatigue crack growth resistance is twice that of 2024-T3. This improvement can reduce weight and extend the service life by 30-40%. AA 2024 t351’s fatigue strength is about 45% of yield strength.

2014 is a high-strength forged aluminum alloy of the Al-Cu-Mg-Si series, which can be strengthened by heat treatment. The chemical composition of this alloy is similar to that of 2A14 aluminum alloy, with high strength and good hot working properties, and is easy to forge. 2014 is used to manufacture rims that require high strength, high hardness and high loads, such as rims, truck frames and suspension assemblies, rocket booster fuel tanks and structural parts, etc.

Original source: https://www.aircraft-aluminium-sheet.com/a/2000-series-aluminum-aa2024.html

What Are Duralumin Uses

 The duralumin alloys are usually 7xxx, 2xxx and 6xxx aluminum alloys. 7075aluminum plate is one of the most commonly used aluminum alloys with the highest strength. The anodizing 7075 aluminum has higher strength.

In the aviation field, it is mainly used to make aircraft skins, fuselage frames, beams, propellers, fuel tanks, wall panels and landing gear struts, as well as streamlined covers, turntables, remote controls and main components of space launch vehicles, and engine devices. It is also widely used in the fastener industry, mainly for the production of various nuts and shear-resistant high-lock nuts.

7050 is a high-strength alloy of Al-Zn-Mg-Cu series, which can be strengthened by heat treatment. The chemical composition of this aluminum alloy is adjusted on the basis of 7075 super-hard aluminum alloy, the content of zinc and copper is increased, zirconium is used instead of chromium to refine the grains, and the content of impurities such as silicon and iron is reduced.

7050 aluminum is mainly used for main load-bearing structural parts with high strength, good fracture toughness, and high resistance to stress corrosion cracking and exfoliation corrosion, such as thick plates, extrusions, free forgings and die forgings for aircraft structures, such as thick plates, extrusions, free forgings and die forgings for aircraft structures, including fuselage frames, partitions, wing beams, landing gear support parts and rivets.

6063 aluminum is widely used in the development of aircraft-related structures, such as fuselages and wings. 6063 aluminum alloy is available in a variety of forms to meet the needs of different applications.

Whether the application involves bicycle parts, military-grade rifles or plastic industrial molds, 6063 alloy is usually selected. Other types of high-stress structural parts, such as gears, fuse parts and bows, are also made of 6063 aluminum alloy.

2024 aluminum alloy has excellent mechanical properties and corrosion resistance, and is widely used in aerospace, automobile manufacturing, shipbuilding and other fields. 2024 has relatively good fatigue resistance, especially in thick plates, making it suitable for most aircraft structures. 2024 t3 and t4 are its main tempers. Welcome to inquire 2024 t3 aluminum sheet price from us.

2014 aluminum is used to manufacture rims that require high strength, high hardness and withstand high loads, such as rims, truck frames and suspension assemblies, rocket booster fuel tanks and structural parts; 2014 coated aluminum can also be produced to improve its corrosion resistance.

Original Source:https://www.aircraftaluminium.com/a/what-are-duralumin-uses.html

2024/2524/7075 Aircraft Aluminum for Fuselage Skins

What Is Aircraft Fuselage Skin

It refers to the dimension-shaped component that surrounds the aircraft frame structure and is fixed to the frame with adhesive or rivets to form the aerodynamic shape of the aircraft. The fuselage skin is a force-bearing member covering the outside of the frame. Its function is to form a streamlined outer surface of the wing.

The fuselage skin and the frame should have a large bearing capacity and rigidity, but its own weight is very light, which can bear and transmit aerodynamic loads. After the skin is subjected to aerodynamics, the force is transmitted to the connected fuselage wing frame. It is also in direct contact with the outside world.

Therefore, the fuselage skin material is required to not only have high strength and good plasticity, but also have smooth surface and excellent corrosion resistance. Duralumin and super duralumin are widely used in modern aircraft fuselage body.

Aluminium Alloys Are Used to Make Aircraft Body

Boeing 747

It is the world’s first wide-body civil aircraft produced by the Boeing Civil Aircraft Group of the United States. The Boeing 747 is a four-engine aircraft that can be used for passenger, cargo, military and other purposes.

Aluminum alloys for aircraft body: 2524,2024, 7075

Boeing 777

The Boeing 777 is a large-scale civil airliner launched by the Boeing Company in the 1990s. Most of the materials used are mature materials in the late 1980s and early 1990s, or commercialized materials in the 1990s. Therefore, its selection of materials is very classic.

Aluminum alloy for fuselage skin: 2524-T3

Airliner A380

A380 aircraft body structure has used large amount of aluminium alloy, accounting for 61% of the weight. The composite materials accounts for 25%, iron and steel account for 10 %,others account for 4%.

Aluminum alloy for aircraft fuselage: 2024 and 2524

ARJ21

ARJ21 regional airliner is an aircraft with independent intellectual property rights developed by China in accordance with international standards. ARJ21 includes basic models, freight models and business models.

Fuselage skin aluminum alloys: 2024, 2324, 2524, 7475

Development of Aircraft Aluminum Alloy

The classic 2024 aluminum plate has also developed a series of improved grades, such as 2124, 2224, 2324, etc., by reducing the content of Fe and Si impurities. The theory and technology of alloy purification and microalloying promotes the development of the third generation high-strength and high-toughness aluminum alloys.

In response to the high damage resistance requirements of aircraft fuselage skin, Alcoa has successfully developed high damage resistance 2524 by further reducing the content of impurities such as Fe and Si, adding microalloying elements, optimizing the main alloy composition.

Super strong, high toughness and corrosion resistantence7055-T77 alloy and high damage resistance 2524-T39 alloy have been successfully applied to the upper wing panel and fuselage skin of B777, which are regarded as typical representatives of the fourth generation of aviation aluminum alloy.

In order to meet the advanced welding requirements and forming needs of the fuselage skin and wing wall panel of large aircraft, Al-Falumin has developed 6056, 6156, 2022, 2023,etc.

Typical Aircraft Aluminum Grades

2024 Aluminum Plate: Alulminum alloy 2024 is a typical duralumin alloy-Al-Mg-Cu aluminum alloy, with 4.5% copper, 0.6% manganese and 1.5% magnesium. It is of reasonable composition and good overall performance. 2024 aluminum also features high strength, a certain degree of heat resistance, can be used as working parts below 150 ℃.

7075 Aircraft Aluminum: High-strength aluminum alloys are mainly used for aircraft fuselage parts, engine compartments, seats, control systems, etc., and are the most widely used. 7075 aluminum plate belongs to the Al-Zn-Mg-Cu super hard aluminum.

2524 Aluminum Alloy: 2524-T3 Al plate has a nominal composition (%w.t) of 3.84% Cu, 0.04% Si, 0.06% Fe, 1.31% Mg, 0.56% Mn, 0.029% Ti, 0.01% Zn with the made up of Al.