Die Castings used for many Aircraft Parts. Demand for diecast airplane parts is increasing in the aircraft industry. Airplanes need lightweight materials for mobility. Moreover, planes require durability and resistance to several stresses while flying. Among metals, aluminum is used to serve as frames or skeletons of the aircraft.
In the aircraft industry, the strength of aluminum is significantly increased by high pressure die casting. Aluminum die castings used for airplane parts are strong against torsion and expansion stresses. These are important considerations since a flying aircraft is subjected to several forces.
In the machining process, there is always an associated imperfection called die casting porosity. This is the amount of gas that combines with the solidifying metal, as it cools in the mold. Porosity is characterized by the size and number of air bubbles inside the finished product. There are three levels of porosity. The second and third levels are unacceptable when it comes to machining airplane parts. This is to guarantee safety of the passengers.
Die castings used for airplane parts are usually made of different aluminum alloys. The two most common die casting alloys for aircraft parts are A380 and A413. For example, Al 7075 is commonly used for making frames because of its toughness.
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