Study On The Bionic Laser Process Of Hot Forging Die Steel

In millions of years of evolution, in order to constantly adapt to changes in the environment, various living creature gradually formed many excellent characteristics in all aspects of morphology, structure, and materials, and achieved variety of functions by biological coupling way. In the meantime they formed their own superior adaptabilities and highly coordinated systems to the specific living environment. These characteristics and functions have been achieved by biological coupling, are not only the masterpiece of nature, but also the endless treasures of human science and technology stepped forward to new technological frontier.In this paper, a new biological coupling process of surface strength has been developed, based on the study of several biological coupling methods, anti-fatigue and anti-wear organisms from the theory aspect, existing materials and process characteristics of hot forging die, as well as the application level of the domestic laser processing technology. During the study, on the one hand, the process of hot forging has been simulated by DEFORM-3D, and with the study of distribution of temperature, stress fields, and the thermal wear conditions of die, concluded the heat and force conditions of the hot forging die during forging process, as well as the most vulnerable parts of it is obtained. On the other hand, the laser parameters are optimized by several experiments, at the same time, thermal fatigue tests of different biological coupling structures have been carried out. The experimental results show that the laser process can effectively reduce or even eliminate the flake on the surface of the HD die steel, and can also effectively improve the thermal fatigue resistance of it, which achieved the goal of extending the life of the hot forging die.