Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and it has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industries. At present, in the forging process of forged aluminum cylinder, due to the narrow deformation temperature range of the aluminum alloy during the heating process, it is sensitive to the deformation temperature and deformation speed, the friction coefficient is large, the fluidity is poor, and uneven deformation will cause local coarse crystals and sticky forgings. The height of the forged aluminum cylinder is 900mm, so it is easy to produce critical deformation during the forging process, and it is easy to produce critical deformation during the forging process. The rolling process may cause instability and elliptical deformation. The parts are easily deformed, the structure of the finished product after heat treatment is uneven, and the performance anisotropy is large, which greatly increases the difficulty of producing aluminum alloy forgings.
The forging forming process of forged aluminum cylinder, through the use of cross upsetting in the forging process, on the one hand, the aluminum alloy blank can be fully deformed, and the as-cast structure can be transformed into a forged structure. In addition, the cross upsetting method can reduce the aluminum alloy ring The anisotropy of parts performance increases the radial elongation of aluminum alloy rings. In the forging process, by changing the feed rate of the ring rolling machine during the ring rolling, on the one hand, it can prevent the aluminum alloy forgings from overheating, and also prevent the end faces and grooves of the aluminum alloy forgings. In addition, the heat treatment of the aluminum alloy forgings not only increases The strength of the forging is improved. In addition, the strong phase precipitated by the aluminum alloy forging at this heat treatment temperature is more finely dispersed, reducing the participating stress of the aluminum alloy forging and preventing subsequent machining deformation.
The forging forming process of forged aluminum cylinder, through the use of cross upsetting in the forging process, on the one hand, the aluminum alloy blank can be fully deformed, and the as-cast structure can be transformed into a forged structure. In addition, the cross upsetting method can reduce the aluminum alloy ring The anisotropy of parts performance increases the radial elongation of aluminum alloy rings. In the forging process, by changing the feed rate of the ring rolling machine during the ring rolling, on the one hand, it can prevent the aluminum alloy forgings from overheating, and also prevent the end faces and grooves of the aluminum alloy forgings. In addition, the heat treatment of the aluminum alloy forgings not only increases The strength of the forging is improved. In addition, the strong phase precipitated by the aluminum alloy forging at this heat treatment temperature is more finely dispersed, reducing the participating stress of the aluminum alloy forging and preventing subsequent machining deformation.
