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Advantages of aluminum alloy forging process

Time:2020-09-27 Source:未知 Click:time

China's aluminum alloy forging technology originated in Europe. After nearly 20 years of development, many new technologies have emerged, such as direct forging and spinning composite technology, short process technology, pure direct forging technology and liquid forging technology, etc.
In recent years, with the introduction of energy saving and emission reduction policies in automobiles, manufacturers have turned their attention to lightweight design and product research and development of new energy saving and plastic technologies, supporting the formation of equipment has also put forward higher requirements, promoting the development of aluminum alloy wheel forging process and molding equipment in China.
Aluminum alloy is one of the most widely used non-ferrous metal structural materials in industry. It is widely used in aviation, aerospace, machinery manufacturing, shipbuilding, chemical industry and other industries. Aluminum alloy can be forged in forging hammer, mechanical press, press, upsetting machine, reaming machine and other forging and pressing equipment. Free forging, die forging, upsetting forging, rolling forging, reaming.
When forging aluminum alloy chassis parts of automobile, the aluminum alloy is usually heated to the forging temperature first. After the temperature is stable, plastic deformation is carried out. After the plastic deformation, solid solution treatment and aging treatment are carried out.
In order to improve the plasticity of aluminum alloy forging process and reduce the deformation resistance, it is necessary to ensure the aluminum alloy billet in single-phase state as far as possible. Therefore, in the forging process of automobile aluminum alloy chassis parts, many times of heating is usually needed to ensure that the aluminum alloy parts in the appropriate forging temperature.
In order to fully dissolve all stage of the aluminum alloy strengthening, solid solution, improve toughness and corrosion resistance, eliminate pressure and softening, and promote the continuous processing or form, it is necessary to carry out the solution treatment of aluminum alloy, that is to say, the temperature of the heat resistant aluminium alloy part of the solution, and then let them warm, so all phases completely dissolved, form a unified solid solution, and then rapidly cooling (quenching) at a fixed temperature solid solution. Supersaturated solid solution is obtained to prepare for aging.
After quenching, the plasticity of aluminum alloy forgings after aging treatment decreases, and the strength and hardness increase significantly. In practice, aluminum alloy forgings are usually heated to a certain temperature and kept for a certain time after quenching, that is, artificial aging.
When aluminum alloy materials are forged, aluminum alloy parts that require multiple deformations at the forging temperature usually require multiple heating. At the same time, the forgings need to be dissolved and artificially aged after forging, which makes the aluminum alloy parts need to be heated for many times in the forging process, which increases the actual production cycle and production cost.
The advantage of forging is light weight, 20% lighter than the casting hub of the same size; Physical integration forging forming, with high density, high strength; Forging size accurate, small processing capacity; It can make a nicer shape, and the spokes can be very thin and nice.
The above is quanshun small make up for you!

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