ã€China Aluminum Industry Network】In the process of aluminum sheet processing, various alloying elements are added to achieve aluminum sheet with some special mechanical properties. Alloy aluminum can be divided into 1-8 series. For example, 2A21 belongs to the 2 series 3003 belongs to the 3 series 5052 belongs to the 5 series, and the production and processing methods of the like aluminum sheet belong to the rolling processing, also referred to as "calendering" processing. There are two general approaches: hot rolling and casting. The characteristics of the hot rolling method: During the process of large plastic deformation, the internal structure undergoes multiple recovery and recrystallization. The coarse grains in the as-cast state are fractured and the micro-crack is healed, so that the blank is homogenized within the internal structure, and the grains are Significant improvements have been made in casting defects such as size and shape, point defects, and line defect concentration changes, which have transformed the as-cast microstructure into deformed structures and greatly improved the metal processing performance. Especially in the deep-drawing performance, the hot-rolled material has the unparalleled advantage of cast-rolled material. The characteristics of the casting and rolling method: The internal structure of the cast-rolled sheet belongs to a semi-cast structure, and the directionality of the crystal is strong. Compared with hot rolling, it has the characteristics of less investment, low cost and high efficiency.
Aluminum plate refers to a plate-type material processed from aluminum and aluminum alloys. Aluminum alloy sheet can also be divided into cold rolling and hot rolling, the main difference is the difference between anodizing, hot rolled aluminum sheet can do anodizing. The cold-rolled aluminum sheet and the hot-rolled aluminum sheet have different uses. The cold-rolled aluminum sheet is mostly used for molds, and the hot-rolled aluminum sheet is suitable for stamping and drawing. The same material has different physical properties due to different manufacturing processes. Aluminum processing is also called plastic forming. According to the stress and deformation modes (stress-strain state) of aluminum during the deformation process, it is divided into: casting, forging, extrusion, spinning, drawing, rolling, and forming ( Cold pressure, deep-drawing) and other processing methods.