The aluminum alloy used in the aviation field is usually called aviation aluminum alloy. They are well known for high specific strength, good processing and formability, low cost, and good maintainability. It is widely used in aircraft main structure materials.
In the future, the design requirements of the new generation of air crafts such as flight speed, structural weight reduction and stealth will be improved, and the specific strength, specific rigidity, damage tolerance performance, manufacturing cost and structural integration requirements of aviation aluminum alloy will be greatly strengthened.
The 7075 aluminum plate for sale was successfully developed in 1943. It was the first 7xxx aluminum alloy used in the practical application. The strength of 7075-T6 aluminum alloy was the highest among aluminum alloys at that time, but its resistance to stress corrosion and spalling corrosion was poor. How about the 7075 aluminum performance compared with the 2024 aluminum alloy?
Corrosion resistance
Like other aluminum alloys, 7075 alloy has strong oxidation resistance. Except for stress corrosion, its resistance to general corrosion is equivalent to that of 2024 alloy. 7075-T6 alloy is extremely sensitive to stress corrosion cracking, especially in the transverse direction (ST), while the performance of T73 and T76 materials has been greatly improved.
7075 T73 has the highest resistance to stress corrosion cracking, while 7075 T76 aluminum not only has high strength, but also has high resistance to stress corrosion cracking and spalling corrosion.
Forming Performance
The forming performance of 7075-O aluminum alloy is not as good as that of 2024-O alloy, but it has good forming performance at 180℃~370℃. The holding time in this temperature range should be greater than 2h. The formability of 7075-W alloy is equivalent to that of 2024-W alloy. . The 7075-T6 alloy has poor room temperature formability, but heating to 150°C~220°C can significantly improve its formability.
Weldability
7075 aluminum is not suitable for fusion welding, and its resistance welding is not as good as 2024 alloy. 7075 aluminum plate will not crack by using electric welding. Haomei Aluminum has rich alloys of aircraft aluminum. Welcome to leave message below to inquire what you need.
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