Introduction When the video of Tesla’s humanoid robot Optimus walking flexibly went viral online, few noticed that its joints concealed a “bottleneck” technology — planetary roller screw. This precision component, priced at tens of thousands of yuan, accounts for 15%-25% of the robot’s cost, yet has long been monopolized by foreign giants like Germany’s Schaeffler. … Read more
1 Experimental Method The added elements selected for this study are Ni, Fe, Cr, and Zr, with contents of 2 mass% (hereinafter referred to as %). Cu alloy powders containing the aforementioned added elements were produced using the argon gas atomization method, and then sieved to achieve a particle size of 10-63 μm for the … Read more
The specific strength of magnesium alloys is higher than that of aluminum alloys. In the aerospace field, magnesium alloys can be used to replace aluminum alloys in the manufacture of components such as aircraft seats, floors, hatches, and structural parts of spacecraft, which can make the aircraft lighter while ensuring structural strength. In our country … Read more
Source: Zhang Zhanling, Zhao Fei, Tan Wenlong. Effects Of Heat Treatment Process On 60Si2CrVA Spring Steel Microstructure And Properties [J]. Metal Heat Treatment, 2014, 39 (05): 104-107.
Click to Learn More ↑↑ Authors: Xia Shenlin, Wang Gang, Li Xuefeng Institution:China Shipbuilding Industry Corporation, 725 Research Institute Source: “Metal Processing (Thermal Processing)” Magazine A certain equipment drive gear experienced tooth breakage during use. The gear is made of 20CrMn steel, with a heat treatment state of carburizing quenching and low-temperature tempering. The technical … Read more