As a kind of lightweight and high-strength metal material, magnesium alloy has been widely used in manufacturing industry. As a kind of magnesium alloy products, magnesium alloy die forging has good mechanical properties and formability, and is widely used in aviation, automobile, electronics and other fields. In this paper, the production process and key technologies of magnesium alloy die forging are introduced in detail.
The production process of magnesium alloy die forging mainly includes the following steps:
Raw material preparation: High quality magnesium alloy ingot is selected as the raw material, and after melting and refining treatment, a pure magnesium alloy molten liquid with uniform composition is obtained.
Mold design and manufacturing: Design and manufacture suitable forging molds according to product requirements and shape complexity. Die material is usually selected high strength, heat, wear resistant alloy steel.
Heating and insulation: The magnesium alloy ingot is heated to the appropriate temperature so that it has good plasticity and fluidity. At the same time, maintain a certain holding time to ensure that the internal temperature of the material is uniform.
Forging forming: The heated magnesium alloy molten liquid is poured into the forging mold and quickly formed under high pressure. By adjusting forging parameters, such as temperature, pressure, speed, etc., control the shape, size and internal organization of the forging.
Heat treatment and surface treatment: Heat treatment of the wrought magnesium alloy die forging, such as solution treatment, aging treatment, etc., to improve its mechanical properties and corrosion resistance. According to needs, surface treatment can also be carried out, such as sandblasting, anodizing, etc., to improve the appearance quality and corrosion resistance of the product.
Inspection and packaging: Strict inspection of the produced magnesium alloy die forging, including appearance inspection, size inspection, mechanical property testing, etc., to ensure that the product quality meets the requirements. Qualified products are packaged for transportation and storage.
Some key technologies are involved in the production of magnesium alloy die forging, which are of great significance to improve product quality and production efficiency. These key technologies include:
Alloy composition design: By adjusting the type and content of alloy elements in magnesium alloy, the mechanical properties and corrosion resistance of the material are optimized. Reasonable alloy composition design is the key to achieve high performance of products.
Die design and manufacturing technology: The structural design of the die, material selection and manufacturing process directly affect the shape accuracy and surface quality of the forging. Advanced mold design and manufacturing technology can improve the forming quality and production efficiency of products.
Forging process parameter control: temperature, pressure, speed and other parameters in the forging process have an important impact on the internal structure and mechanical properties of the forging. Precise control of these parameters can achieve high product quality and stability.
Heat treatment and surface treatment technology: improve the mechanical properties and corrosion resistance of forgings through heat treatment, and improve the appearance quality and environmental resistance of products through surface treatment technology. These technologies play an important role in improving the overall performance and market competitiveness of products.
In short, the production process of magnesium alloy die forging includes raw material preparation, mold design and manufacturing, heating and heat preservation, forging and forming, heat treatment and surface treatment, inspection and packaging and other steps. In the production process, key technologies such as alloy composition design, mold design and manufacturing technology, forging process parameter control, heat treatment and surface treatment technology play an important role. By optimizing the production process and improving the level of key technologies, the high-quality development of magnesium alloy die forging industry can be further promoted.
