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  • Setting №D-26

  • For load-bearing elements of the aircraft (chassis parts and plating, stringers, frames, spars, etc..) Are widely used wrought aluminum alloys brands: D1, D16, V93, V95 and others.

  • 1. Select a deformable aluminum alloy for the production of power de¬taley landing gear section 50 mm. Assign the mode of heat treatment, provides the highest resistance to fatigue crack propagation alloy, yield strength σ0,2> 500 MPa, elongation δ> 9%. Plot the heat treatment temperature-time indicating: the heating temperature, holding time, cooling medium.

  • 2. Describe the structural changes taking place in parts at all stages of heat treatment

  • 3. Provide basic information on the alloy chemical composition according to GOST, the scope, the requirements for this type of product, mehaniche¬skie and technological properties, the influence of alloying elements and others.

  • References 6

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