With the continuous development of the manufacturing industry, new processing technologies continue to emerge. Superplastic hot die forging process is one of them, which combines the advantages of superplastic and hot die forging technology and brings innovation to the field of metal processing. In this paper, the principle and characteristics of superplastic hot die forging process are introduced, and its application prospect is discussed.
The superplastic hot die forging process is based on the superplastic phenomenon of the metal. Superplasticity means that the metal has very high elongation and no necking fracture at high temperature and low strain rate. By utilizing this property, the metal can achieve large deformation under low deformation resistance during hot die forging, thus obtaining complex shapes.
Characteristics of superplastic hot die forging process
High formability: The superplastic hot die forging process allows the metal to have a very high elongation and can easily achieve the formation of complex shapes.
Low deformation resistance: The superplastic phenomenon of the metal greatly reduces the resistance encountered in the deformation process, reducing energy consumption and mold wear.
High precision: Due to the good fluidity of the metal, the dimensional accuracy and surface quality of the product can be effectively guaranteed.
Application prospect
Aerospace: There is a high demand for lightweight and complex structures in the aerospace sector. Superplastic hot die forging process can produce aerospace parts with light weight, high strength and complex structure, such as engine blades and turbine disks.
Automotive industry: With the development of the automotive industry, the performance and quality requirements for automotive parts are also increasing. Superplastic hot die forging technology can be applied to the manufacture of automobile engine parts, body structure parts, etc., to improve the strength and stiffness of parts, while reducing the weight.
Medical devices: Medical devices often require precise and complex shapes. Superplastic hot die forging process can produce high-precision, smooth surface of medical device parts, such as surgical instruments, implants and so on.
Although the superplastic hot die forging process has many advantages, it still faces some challenges, such as the precise control of process parameters, mold design and manufacturing. The future development direction includes further improving the process theory and technical system, improving the stability and repeatability of the process, expanding the application field, and promoting the development of related numerical simulation and intelligent technology.
As an innovative metal processing technology, superplastic hot die forging has brought great potential to manufacturing industry. By fully studying and applying this process, it can promote the progress of manufacturing, meet the demand for high-performance, high-quality parts in various fields, and lay a solid foundation for future smart manufacturing and green manufacturing.
