Hot die forging is a process of producing forgings by plastic deformation at high temperatures. In the process of hot die forging, the setting and adjustment of various process parameters have an important influence on the performance of the final forging. This paper will discuss the influence of hot die forging parameters on forging properties, and introduce some methods to optimize the parameters.
Temperature is one of the key parameters in hot die forging process. The right heating temperature can ensure that the metal material has good plasticity and fluidity, so that the mold cavity can be fully filled to obtain accurate shape and size. At the same time, reasonable heating temperature can also improve the structure of the metal and improve its mechanical properties. However, too high a temperature may lead to problems such as grain growth and overburning of the material, while too low a temperature may lead to cracking or insufficient plasticity of the material. Therefore, in the process of hot die forging, the heating temperature must be precisely controlled to ensure the performance of the forging.
Deformation rate is another important parameter in hot die forging. It affects the flow behavior and microstructure evolution of metal materials during deformation. The higher deformation rate can improve the production efficiency, but it may lead to the increase of the internal stress of the material and affect the mechanical properties of the forging. Conversely, a lower deformation rate can reduce internal stress but may reduce production efficiency. Therefore, when choosing the deformation rate, it is necessary to weigh the relationship between production efficiency and forging performance.
Die design and lubrication also have an important impact on the performance of hot die forging. Reasonable mold design can ensure the uniform flow of metal materials in the mold to avoid defects and cracks. At the same time, good lubrication can reduce the friction between the metal and the mold, reduce the deformation resistance, and improve the surface quality and dimensional accuracy of the forging. Therefore, in the process of hot die forging, we should pay attention to the choice and optimization of mold design and lubrication.
In order to optimize the process parameters of hot die forging and improve the forging performance, the following methods can be adopted: First, the process test is carried out, and the influence of different process parameter combinations on the forging performance is observed by adjusting the combination of different process parameters, and the best parameter combinations are sought; The second is to use numerical simulation technology, through the establishment of the mathematical model of hot die forging process, to predict the forging performance under different process parameters, to guide the actual production; Third, learn from industry experience and expert knowledge, accumulate and optimize process parameters through continuous learning and practice.
The parameters of hot die forging have significant influence on the forging performance. The mechanical properties, surface quality and production efficiency of forgings can be effectively improved by reasonably controlling heating temperature, deformation rate and optimizing key parameters such as mold design and lubrication. In the actual production process, the method of comprehensive optimization should be adopted, combined with process test, numerical simulation and expert experience, and constantly adjust and improve the process parameters to achieve high performance and high quality production of hot die forging.
