Aviation CNC machining

Introduction to Materials for Aerospace Components Used in Aviation CNC Processing
Aviation CNC machining can also effectively handle the materials required for aerospace components. The extreme environments and use cases experienced by airplanes, helicopters, and spacecraft require special materials. These materials include titanium, especially grade 2 and grade 5, which can be used for engine components due to their heat resistance and strength. However, titanium is an expensive material and therefore cannot be used for every component of an aircraft.
Alloy steel, especially 4340 and 4130, is also used in the manufacturing of aerospace components. 4340 steel is tough and sturdy, with high potential hardness, making it very suitable for the high loads borne by aircraft landing gears. 4130 steel also has high tensile strength and is used for gears, fasteners, and external components. The strength cost ratio of steel, especially compared to titanium, is advantageous, but steel is a denser and heavier material, which limits its use in aerospace applications. Unlike titanium, steel is prone to corrosion, so if exposed to moisture, coating treatment is necessary.
Finally, aluminum (7075, 2024, and 6061) has a high strength to weight ratio due to its low density. It is also easy to process - the processing speed is two to three times faster than steel. Aluminum 2024 has good fatigue resistance, which means it can withstand many load cycles (very suitable for aircraft that have been in use for many years). Aluminum 6061 is a precipitation hardened aluminum alloy with good corrosion resistance, which can be found in aircraft wings and fuselage. Aluminum 7075 combines good fatigue resistance and corrosion resistance, which leads to its widespread use in aircraft structural components.