With the rapid development of modern industry, the performance requirements of mechanical parts are also increasing. Especially in aerospace, automotive, energy and other key areas, the strength of parts, wear resistance, corrosion resistance and other aspects have extremely high requirements. In order to meet these needs, ultra-high strength cold forging forgings have gradually been widely concerned. This paper will discuss the development trend and practical application of ultra-high strength cold forging from two perspectives of research and development and application.
Cold forging technology is an advanced metal forming process with high precision, high efficiency and high performance. The forgings produced by cold forging process have excellent mechanical properties because of their dense internal structure and fine grain. However, the traditional cold forging technology is often difficult to meet the requirements of ultra-high strength. In order to solve this problem, researchers began to explore new cold forging processes and materials to develop cold forging forgings with ultra-high strength.
Material selection: In order to achieve ultra-high strength, it is first necessary to select materials with excellent mechanical properties. Researchers have conducted in-depth research on the composition, structure and properties of materials, and developed a series of new materials such as high-strength alloy steel, stainless steel and titanium alloy.
Die design: The design of cold forging dies has an important impact on the forming quality and performance of forging parts. In order to obtain ultra-high strength forgings, researchers have optimized the mold structure, cavity shape and size to improve the flow and filling of metal in the mold.
Process optimization: Cold forging process parameters play a key role in forming quality and performance of forgings. Through a large number of experiments and simulation analysis, the researchers optimized the cold forging process parameters, including pressing speed, pressing force, holding time, etc., to achieve full deformation and refinement of the metal in the mold.
Heat treatment and surface treatment: In order to further improve the strength and wear resistance of forgings, researchers have carried out heat treatment and surface treatment of forgings. By adjusting the heat treatment process parameters, the internal structure of forging is refined and strengthened. Through surface treatment technology, such as carburizing, nitriding, etc., improve the surface hardness and corrosion resistance of the forging.
Aerospace field: In the aerospace field, ultra-high strength cold forging forgings are widely used in aircraft engines, transmission systems, landing gear and other key parts. These parts need to withstand harsh environments such as high temperature, high pressure and strong corrosion, so the performance of the parts is extremely demanding. Through the application of ultra-high strength cold forging forging, not only improve the safety and reliability of the parts, but also reduce the weight and fuel consumption of the aircraft.
Automotive industry: In the automotive industry, ultra-high strength cold forging forgings are used to manufacture automotive engine connecting rod, crankshaft, drive shaft and other core components. These components need to withstand high-speed rotation and impact loads, so the strength and wear resistance are extremely high requirements. By using ultra-high strength cold forging forgings, not only can improve the power and economy of the car, but also extend the service life of the car.
Energy field: In the field of energy, ultra-high strength cold forging forgings are used in the manufacture of oil extraction, natural gas transmission and other equipment. These devices need to withstand harsh environments such as high pressure, high temperature and high corrosion, so the performance of the parts is extremely demanding. By using ultra-high strength cold forging forgings, the safety and reliability of the equipment can be improved, and the production cost can be reduced.
With the continuous progress and innovation of science and technology, the research and development and application of ultra-high strength cold forging forgings will make greater breakthroughs. In the future, researchers will continue to explore new cold forging processes and materials to develop cold forging parts with higher strength and better performance; At the same time, with the development of digital technology and intelligent manufacturing technology, the manufacturing process of ultra-high strength cold forging forging will be more intelligent and efficient; In addition, with the improvement of environmental awareness and the development of green manufacturing technology, the manufacturing process of ultra-high strength cold forging forgings will be more environmentally friendly and sustainable in the future.
