Titanium plates usually need to be thermally processed in the single-phase region or the two-phase region to obtain products with certain organization and properties. The choice of thermal processing parameters has an important influence on the machinability and microstructure of titanium sheets. In recent years, the research on the thermal processing of titanium plates has been increasing in my country, especially the application of thermal simulation technology and numerical simulation technology in the thermal deformation mechanism and microstructure evolution of titanium plates.
Compared with the traditional process trial and error method, the use of simulation technology as a research and development method can shorten the development cycle, reduce production costs, and optimize production processes, thereby improving production efficiency and increasing economic benefits. However, due to the high price and long production cycle of titanium plates, the research on its production process urgently needs simulation technology to open up shortcuts for it, and overcome the problems of narrow thermal processing temperature range, complex and diverse relationships between processes, structures and properties.
The diversity of titanium plate microstructure has a regular relationship with the multi-process production process of titanium plate and the diversity of each process. This complex connection determines that it is difficult to predict and control the structure and properties of titanium plates by traditional methods. In recent years, with the development of computer and numerical simulation technology, the numerical simulation method of microstructure has become a powerful tool to obtain the quantitative relationship between the main process parameters and macro and microstructure of hot forming workpiece. Using numerical simulation technology to reproduce the evolution process of the microstructure can not only deepen the understanding of the change mechanism of the microstructure and promote the development of existing theories, but also improve the microstructure of the material and optimize the preparation process of the material, so as to obtain the expected mechanical properties of the material. .
At home and abroad, a lot of research work has been done on the thermal deformation mechanism and microstructure evolution of titanium plates using thermal simulation technology and numerical simulation technology, and the results of the relationship between mechanical and energy parameters, process parameters and microstructure have been obtained, which can optimize the production process. ,improve product quality. However, due to inaccurate material performance data, boundary conditions and friction parameters are difficult to be close to reality, and the study of macroscopic variables does not involve changes in microstructures.
