The aluminium alloys are used to make aircraft body is usually called aircraft aluminum alloys, featuring high specific strength, good processing and formability, low cost and good maintainability, which is widely used in aircraft main structure materials.
The improvement of the generation of advanced aircraft on flight speed, structural weight reduction, and stealth put forwards the higher requirements for the aviation aluminum on specific strength, specific stiffness, damage tolerance performance, manufacturing cost, and structural integration Take the uses of some main aircraft aluminum alloys for example.
2024 sheet has high fracture toughness and low fatigue crack growth rate. It is the most commonly used aircraft fuselage and underwing skin material.
7075 aluminum sheet was successfully developed in 1943. It was the first 7xxx aluminum put into practical application. It was successfully applied to the B-29 bomber. The strength of 7075-T6 aluminum alloy was the highest at that time, but its resistance to stress corrosion and anti-flaking corrosion performance is very poor.
7050 aluminum plate is developed on the basis of 7075 aluminum alloy, which has better strength, anti-flaking corrosion and stress corrosion resistance. It is applied to the the compressive components of F-18 aircraft.
6061 aluminum is the earliest 6xxx aluminum alloy used in aviation. It has good corrosion resistance and excellent welding performance, but the strength is moderately low.
The typical yield strength of 7068 aluminum sheet reaches 700 MPa, which is 15% to 20% higher than 7075 alloy. It is mainly used in the aerospace and automotive industries like valve body and connecting rod. It is also used in making medical devices and recreational products.
Haomei Aluminum has all these aerospace aluminum alloys. Welcome to leave message below to inquire what you need.
Original Source:https://www.aircraftaluminium.com/a/the-uses-of-main-aircraft-aluminum-alloys.html
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