US Military Aircraft Parts

The United States leads the world in manufacturing aircraft and associated systems. Military aircraft form the backbone for both national defense and projection of power. These air vehicles are critical to air superiority, strike, airlift, early warning, reconnaissance, command and control, ground attack and sea control. Fully one-third of the DOD annual budget ($85 billion per year) supports aircraft expenditures. Improvements in air vehicle cost and capability therefore offer significant leveraging potential for reducing defense expenditures.



Kinetic Die Casting makes Aluminum Aircraft Die Casting Parts


Sweeping global changes in recent years have presented significant new challenges to the US aeronautics industry. Perhaps most significant is the end of the cold war, bringing dramatic reductions in defense spending including development of new aircraft and engines. Perhaps the most common theme is that of the aging military and commercial fleets. Aircraft service life limits are derived from structural fatigue test demonstrations. Fatigue failure is the cracking of metal under repeated stressing. For example, bending a paper clip until it breaks is a fatigue failure. Similarly, aircraft structures are exposed to cyclic stresses in flight, such as fuselage pressurization and depressurization. To ensure safety, the military retires an aircraft before it reaches its estimated fatigue limit. Aircraft designers estimate structural fatigue life -- the number of cycles and stress levels the structure can withstand prior to failure -- through analysis and testing. The military then translates fatigue life into flight hour limits, based on assumptions about the rate at which fatigue damage will occur. This rate will vary depending on several factors,including the rate at which the plane accrues flight hours, the severity of maneuvers, and the weight of the payload.

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