1results about How to "Avoid mechanical performance degradation" patented technology

This application discloses a method for 3D printing aluminum alloy bearing cages, belonging to the field of cage production technology. The method includes the following steps: (1) preparing a matrix powder; (2) pretreating untreated SiC nanoparticles with nickel-phosphorus plating to obtain SiC nanoparticles coated with an average layer thickness of 60-100 nm nickel-phosphorus layer, mixing them evenly with the obtained matrix powder to obtain a powder, and then using laser powder bed 3D printing to perform layer-by-layer printing to obtain a preliminary blank; (3) heat-treating the preliminary blank to obtain the aluminum alloy cage. The aluminum alloy bearing cage prepared by adding SiC nanoparticles and using laser powder bed 3D printing has high hardness and good wear resistance, which not only extends the service life of the cage but also enables rapid short-term production of the cage.