Aviation forgings and aviation castings are two different manufacturing processes and product forms, and there are the following differences between them: Manufacturing process: Aviation forgings are produced by forging process, that is, metal materials are heated to a high temperature state and then pressed, stretched or compressed; The aviation casting adopts the casting process, the molten metal is injected into the mold, and is taken out after cooling and solidification. Material properties: Due to the large deformation and stress experienced by aviation forgings in the forging process, its grain structure is more dense, the texture is more uniform, and it has excellent strength and toughness. Because of the process of melting and solidification, the grain structure of aviation castings is relatively large, not dense enough, and the performance is relatively weak. Form and complexity: Aviation forgings often have relatively simple geometry, are usually formed by hammering or pressure, and are suitable for the manufacture of simple components. Aviation castings can manufacture complex shaped parts, such as blades, turbine disks, etc., and can be formed as a whole, reducing the welding or screw bonding processes at the joints, thereby improving the reliability of the structure. Weight and cost: The material utilization rate of aviation forgings is higher, because in the forging process, the overall performance of metal materials has been better played, and its weight is relatively light, which helps to reduce the weight of the overall aircraft. The cost of aviation castings is relatively high because the manufacturing process involves melting metal and the forming of complex shapes is difficult. In general, aviation forgings and aviation castings have their own advantages and disadvantages, and are suitable for different aviation parts manufacturing needs. In practical applications, selection and design are made according to the requirements of parts and process characteristics to achieve the best performance and economic benefits.
