High strength magnesium alloy materials are often used in construction machinery, and magnesium forgings, as one of the important processing forms, play an important role in improving the strength and durability of parts. In this paper, the processing technology and equipment of magnesium forgings of construction machinery will be explored.
Firstly, the processing technology of magnesium forgings is an indispensable part in the manufacturing process of magnesium alloy parts. It mainly includes material selection, pretreatment, forging, heat treatment and surface treatment and other steps. In terms of material selection, appropriate magnesium alloy materials, such as AZ31 and AZ61, should be selected according to the specific construction machinery environment and the functional requirements of the parts. The pretreatment stage is mainly to preheat and clean the raw material to reduce internal impurities and reduce grain size, and improve the plasticity and ductility of the material. The forging process is carried out by cold forging or hot forging, and the plastic deformation of magnesium alloy material is carried out by applying force to further improve its mechanical properties. Heat treatment and surface treatment can optimize the structure of the material and improve the surface quality and corrosion resistance of the parts through solution treatment, aging treatment and surface spraying.
In the processing of magnesium forgings in construction machinery, suitable equipment is crucial. The first is the choice of forging equipment, there are two common ways: mechanical forging and hydraulic forging. Mechanical forging can choose different equipment according to different workpiece shapes, such as hammer forging machine with power hammer, forced forging machine with punch and so on. Hydraulic forging is the use of hydraulic system to provide large pressure and deformation force, suitable for more complex shape forging process. In addition, it is necessary to be equipped with appropriate temperature control equipment to ensure the temperature of magnesium alloy materials during processing and constant temperature conditions during heat treatment. At the same time, in the pretreatment and surface treatment stage need to use degreasing furnace, vacuum furnace, spraying equipment and other corresponding equipment to ensure that the process requirements of each link are met.
In short, the processing technology and equipment selection of construction machinery magnesium forgings are very important to improve the quality and service life of parts. Through reasonable process flow and advanced equipment, the optimized application of magnesium alloy materials can be realized, which provides strong support for the reliability and performance of construction machinery.
