The increase in aluminum production is inseparable from the wide application of aluminum alloy forging. Compared with steel materials, aluminum alloy forgings have many advantages and are the most widely used type of non-ferrous metal structural materials in the industry. With the rapid development of the industrial economy, the requirements for aluminum alloy forging technology and other aspects have gradually increased.
The important position of aluminum alloy forging in the national economy
Forging production is one of the main ways to provide mechanical parts blanks to various industrial sectors.
The advantages of forging products are:
It not only obtains the shape of mechanical parts but also improves the internal organization of materials and improves mechanical properties. Generally speaking, for important mechanical parts with high stress and high mechanical properties, most of them are manufactured by forging. Aluminum alloy forgings have been widely used in various industrial sectors due to a series of advantages such as low specific gravity, high specific strength, and high specific stiffness. Aluminum alloy forgings have become an indispensable material for mechanical parts in various industrial sectors. All kinds of forgings that can be forged with low-carbon steel can be forged with aluminum alloys. Aluminum alloys can be forged on various forging equipment such as forging presses, mechanical presses, hydraulic presses, upsetting presses, and reaming presses. They can be forged by free forging, die forging, cold forging, upsetting, hot forging, and reaming.
Generally speaking, aluminum forgings with small size, simple shape, and lax deviation requirements can be easily forged, but for aluminum forgings with large specifications and severe deformation requirements, it is advisable to use water (liquid) presses forging. For large and complex aluminum forgings with integral structures, large die-forging hydraulic presses must be used for production. For large precision ring parts, precision ring rolling machines should be used for rolling and forging. Especially in the past ten years, with the progress of science and technology and the development of the national economy, higher and higher requirements have been put forward for materials, forcing aluminum alloy forgings to develop in the direction of large-scale integration, high strength and high toughness, and complex precision, which has greatly promoted the development of forging presses.
As the global transportation industry develops towards modernization and high-speed, the demand for lightweight transportation tools is becoming stronger and stronger, and the call for replacing steel with aluminum is getting louder and louder, especially for important load-bearing parts and structural parts such as aircraft, spacecraft, railway vehicles, subways, high-speed trains, freight cars, cars, ships, vessels, artillery, tanks and mechanical equipment with high lightweight requirements. In recent years, aluminum and aluminum alloy forgings and hot die forgings have been used in large quantities to replace the original steel structural parts, such as almost all aircraft structural parts are made of aluminum alloy hot die forgings; automobile (especially heavy-duty vehicles and large and medium-sized passenger cars) wheels, bumpers, base beams; tank road wheels; turret frames; helicopter dynamic and static rings; train cylinders and piston skirts; woodworking machinery fuselages; textile machinery bases, tracks and stranding drums, etc. have all been manufactured using aluminum alloy die forgings. Moreover, these trends are growing significantly, and even some aluminum alloy castings are beginning to be replaced by aluminum alloy hot die forgings.
With the modernization of the national defense industry and the development of the civilian industry, especially the transportation industry, there is a huge demand for the variety and output of aluminum alloy hot die forgings in various markets. Therefore, it is very necessary and timely to speed up the construction of several large and medium-sized aluminum alloy forging production lines, which has important practical and long-term significance for the rapid development of the national economy and the modernization of the national defense military industry.
