Application of Titanium Alloy Fasteners in the Aerospace Field
In the 21st century, aerospace has shown broader development prospects, with high-level or ultra high level aerospace activities becoming more frequent. Their role will far exceed the field of science and technology itself, and will have a broader and more profound impact on politics, economy, military, and even human social life.
It should be pointed out that the tremendous achievements in the aerospace industry are inseparable from the development and breakthroughs of aerospace material technology, and titanium alloys have an irreplaceable position in the aerospace field due to their high strength and light surface quality.
Titanium alloy fasteners are one of the commonly used titanium alloy products in the aerospace industry. These types of fasteners generally require solution aging heat treatment to ensure that they meet the shear strength requirements of 660MPa and tensile strength requirements of 1100MPa. During the manufacturing process, titanium alloy fasteners need to undergo detailed inspections, including inspections of appearance, mechanical properties, and metallurgy, to ensure that they meet strict material standards, quality, and performance requirements.
The processing technology conditions for titanium alloy fasteners must comply with the relevant requirements set forth in AMS4967 standard (wire, annealing, forgings and rings, heat treatable titanium alloy rods). This standard has clear standard and performance requirements in terms of material tolerances, dimensions, metallography, appearance, defect control, and mechanical properties.
However, there are also some problems in the processing of Titanium bike bolts with flange in high strength, such as corrosion, turning, and precision issues. During the installation process, titanium alloy fasteners are prone to forming gaps, causing surface coating to flow in, thereby affecting their tightness and corrosion resistance. In addition, titanium alloy materials have poor thermal conductivity, and the heat generated during processing is easily concentrated in the cutting area, leading to tool failure and workpiece deformation. Therefore, in the machining process, it is necessary to use blades with regular angular geometry, maintain the sharpness of the blade edge, and use high-pressure and high flow cutting fluid to ensure the stability of the machining process and the accuracy of the workpiece.
In the aviation industry, titanium alloy fasteners are widely used. According to data, each domestically produced C919 aircraft in China requires approximately 200000 pieces of titanium alloy fasteners. To complete the first batch of 100 start-up orders, 20 million pieces of titanium alloy fasteners are needed. With the rapid development of the aerospace industry, the demand for aviation fasteners has increased sharply, and the market prospects of titanium alloy fasteners are very promising.
The application of titanium alloy fasteners in the aerospace field is not only due to their high strength and lightweight characteristics, but also because they can meet the requirements of continuous and safe flight of aerospace instruments. Especially commercial aircraft require more than ten hours of continuous flight every day, and the requirements for fasteners are even higher than aerospace standards. Titanium alloy fasteners can greatly reduce the weight of aircraft, improve aircraft performance, and reduce operating costs, making them an indispensable core material in the aerospace industry.
Titanium alloy, as a core material in the aerospace industry, plays a crucial role. With the continuous development of the aerospace industry, the application prospects of titanium alloys will be even broader.