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Module -2

Non-ferrous Materials In Aircraft Construction

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Properties of AL Metal

It has low density,
non-toxic
has a high thermal conductivity
has excellent corrosion resistance and can be easily cast, machined, and formed.
It is also non-magnetic and non-sparking.
most ductile.
Light Weight
High Strength to weight ratio
Electrical Conductivity

TYPES OF Al ALLOYS

Importance of Al-Cu Alloys

Aluminum-copper alloys are mainly used in aircraft construction, where their low corrosion resistance plays a subordinate role.
Wire, rod, and bar for automatic lathe products. Applications where good machinability and good strength are required.
Aircraft structures, rivets, hardware, truck wheels, screw machine products, and other structural applications.
Sheet for auto body panels
Sheet and plate in structural components for aerospace application and military equipment

Aircraft Structural Components: Al-Zn alloys are commonly used in high-stress parts of the airframe, such as fuselage frames, wing spars, and ribs. Their high strength makes them ideal for load-bearing structures.

Landing Gear Components: The high fatigue strength and durability of these alloys make them suitable for landing gear parts, which experience significant impact and stress during takeoff and landing.

Skin Panels and Bulkheads: The lightweight nature of Al-Zn alloys, along with their strength, makes them an excellent choice for skin panels and internal bulkheads, contributing to overall structural integrity without adding excessive weight.

High-Performance Fasteners: The alloys are also used in making rivets, bolts, and other fasteners that need to withstand high-stress environments without corroding or failing over time.

Engine Components: Certain non-rotating engine parts also use Al-Zn alloys because of their ability to endure thermal cycling and resist deformation under high-temperature conditions.

Importance of AL-Zinc Alloys

Heat Treatment for Aluminum Alloys

Properties of Titanium metal

Application of TI Alloys

Heat Treatment for TI Alloys

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