In the forging process，The forging temperature not only determines the fluidity of the metal，More directly affecting the grain size of the final product。According to material molding experts，When the forging temperature is controlled above the recrystallization temperature、But below the critical temperature for excessive grain growth（For example, alloy steel is approximately1150-1200℃）time，The dynamic recrystallization process can effectively refine the grain size，Significantly improve the strength and toughness of forgings。If the temperature is too high，Grain coarsening will lead to a decrease in mechanical properties，Even causing early failure。This discovery once again reminds the industry：Precise temperature control is essential for forging high-quality components“Invisible Core”。