Studies on Welding Process of 42CrMo4/Q345 Steel for Rotary Gear of Port Loading and Unloading Gantry Crane
Regarding to the fracture problem of the rotating gear of the port loading and unloading gantry crane,a reasonable and effective welding process was selected through material welding performance analysis,which reduced the cold and hot crack sensitivity of the weld seam,solved the problem of embrittlement and softening in the welding heat affected zone,improved the comprehensive mechanical properties of the weld seam,and obtained high-performance welding joints,laying a theoretical foundation for the application and research of 42CrMo4 dissimilar steel welding.
rotating Gearwelding processcold and hot crackembrittlementsoftening