The team of Academician Lu Bingheng of China National Additive Manufacturing Innovation Center and Xi'an Jiaotong University used 3D printing technology to make the world's first 10m-class high-strength aluminum alloy heavy-duty carrier rocket connecting ring sample.
The prototype uses the integrated manufacturing technology of arc fuse addition and subtraction materials to achieve major technological breakthroughs in the overall manufacturing process stability, precision control, deformation and stress control and other aspects.
It is understood that the 10-meter super-large aluminum alloy ring is the key structure connecting the tube section, front and rear bottom of the heavy launch vehicle tank and the space between the rocket box. The sample weighs about 1t, innovatively adopts multi-filament collaborative process equipment, the manufacturing process is greatly simplified, the cost is greatly reduced, and the manufacturing cycle is shortened to one month.
At present, the successful completion of super large rings using the integrated manufacturing technology of adding and subtracting materials is the first in the world. This achievement will help additive manufacturing to illuminate my country's aerospace industry and provide technology for rapid manufacturing of major parts in my country's aerospace industry support.