Excellent Choices For Manufacturing Titanium And Aluminum Alloys in The Aerospace Industry

Titanium alloy has high specific strength, specific stiffness and good corrosion resistance, which meets the design needs of aircraft with high maneuverability, high reliability and long life. Its application level has become an important indicator of the advancement of aircraft material selection.

Titanium alloys and aluminum alloys are widely used in aerospace, automotive, machinery manufacturing and other fields due to their excellent low density and structural strength. Especially in the aviation industry, they play a very important role and are the main structural materials in the aviation industry. Although titanium alloys are about two-thirds heavier than aluminum alloys, their inherent strength means that less amount can be used to achieve the required strength. Titanium alloys have become an important material for reducing fuel costs because of their strength and low density. They are widely used in aircraft jet engines and various types of spacecraft. Aluminum alloy is the most widely used and common automotive lightweight material at this stage, and its density is only one-third that of steel. Studies have shown that aluminum alloy can be used in the entire vehicle up to 540kg, in which case the weight of the vehicle will be reduced by 40%. The use of all-aluminum bodies in vehicles of brands such as Audi and Toyota is a good example.

Since both materials have high strength and low density, other factors must be considered when selecting an alloy.

In critical situations where high strength and low weight are required, every gram counts, but if higher strength components are required, titanium is the best choice. Therefore, titanium alloys are used in the manufacture of medical devices/implants, complex satellite components, fixtures and stents, etc.

In terms of cost, aluminum is the most cost-effective metal for machining or 3D printing; while the cost of titanium is higher, the fuel savings saved by lightweight parts for aircraft or spacecraft will bring huge benefits, and the service life of titanium alloy parts will be longer. long.

In terms of thermal properties, aluminum alloys have high thermal conductivity and are often used to make radiators; for high-temperature applications, the high melting point of titanium makes it more suitable, and aerospace engines contain a large number of titanium alloy components.

Titanium's corrosion resistance and low reactivity make it the most biocompatible metal and is widely used in medical fields (such as surgical instruments). Ti64 also resists salty environments well and is often used in marine applications.

In the aerospace field, aluminum alloys and titanium alloys are widely used. Titanium alloy has the advantages of high strength and low density (only about 57% of steel). Its specific strength (strength/density) far exceeds that of other metal structural materials. It can produce parts with high unit strength, good rigidity and light weight. . Titanium alloys are used in aircraft engine components, frames, skins, fasteners and landing gear. In addition, the 3D printing technology reference found that aluminum alloys are suitable for working in environments below 200°C. The aluminum used in the Airbus A380 fuselage accounts for more than 1/3, and the C919 also uses a large amount of conventional high-performance aluminum alloys. Material. Aluminum alloy is used in aircraft skins, bulkheads, wing ribs and other parts.