Compared with welding parts, agricultural machinery forgings have the following advantages: higher strength and hardness: Agricultural machinery forgings are usually manufactured by forging process, and have higher strength and hardness after heat treatment. In contrast, the strength and hardness of welded parts are usually lower. Good wear resistance and corrosion resistance: Because agricultural machinery forgings are made of alloy steel and other materials, and have been heat treated, the surface usually has a hard oxide film, which has good wear resistance and corrosion resistance. Welding parts are prone to corrosion and wear problems at the weld. Better comprehensive performance: After precision forging and heat treatment process, agricultural machinery forgings can maintain stable working performance in harsh working environments, and have good tensile, compressive and impact resistance. But welding parts are prone to crack, deformation and other problems in the weld. The manufacture of complex shapes and large sizes can be achieved: Because the forging process can flexibly control the flow of metal, agricultural machinery forgings have advantages in terms of shape and size. In contrast, the manufacture of welded parts is limited by the welding process, with certain limitations on shape and size. It should be noted that agricultural machinery forgings and welds also have their own applicable scenarios in actual use. According to the specific situation to choose the appropriate process and materials, can better meet the design requirements of agricultural machinery.