The cross shaft in the differential is the key part of the drive shaft universal joint, which is used to transmit torque and motion. Shaft parts are a kind of structural parts that are used in a large amount and occupy a very important position. The main function of shaft parts is to support transmission parts and transmit motion and power. They are subjected to various stresses during work. The materials should have high comprehensive mechanical properties and require a certain hardness to improve their wear resistance.
The selection of parts materials should be based on domestic, try to choose materials rich in resources in our country, try not to choose precious metal materials, considering that the parts are subjected to frequent alternating loads during the working process, so forgings are selected, so that the metal fibers are as low as possible. are cut off to ensure reliable operation of the parts. The material of the cross shaft is 20CrMnTi, which is a low-carbon alloy structural steel. It is a common material that fully meets the mechanical properties of the cross shaft and is economical in price. The material selection is appropriate.
Among them, the selection of blanks and the material selection of the cross shaft of the differential gear must have certain strength and wear resistance according to the requirements of the parts. Generally, low-carbon alloy structures (carburized materials) such as 20CrMnTi are often used. In addition, considering the production nature of a large number of large , After carburizing and quenching, the surface has high hardness while the axial part maintains considerable strength and toughness, and the required mechanical properties are high, so the die forging forming process with relatively high efficiency and precision is adopted.
Post time: Jun-28-2022