International Journal of Mechanical Engineering

Hot forging process parameters directly affect the microstructure and mechanical properties of steering gear gear blanks. Reasonable control of process parameters can significantly improve the performance of gear blanks. This paper systematically studies the influence law of forging temperature, deformation speed, and deformation degree on the microstructure and mechanical properties of gear blanks, and reveals the mechanism of different process parameters on microstructure refinement and performance optimization. Through experimental analysis and microstructure observation, the specific effects of each parameter on grain size, phase transformation behavior, and hardness distribution are clarified, providing a theoretical basis and technical support for optimizing the hot forging process of steering gear gear blanks.

Hot forging process; Steering gear gear blank; Microstructure and properties; Process parameters; Microstructure