Abstract:
The 3D printing of the lunar soil, to realize the in-situ resource utilization of the lunar resources, is expected to become a key technical approach for the construction and the continuous operation and maintenance of the lunar bases. This paper reviews the research status of the laser 3D printing method for the lunar soil simulation. The experimental system is built based on the laser melting forming principle for the CUG-1A simulated lunar soil, and the preliminary tests are carried out with the conventional environmental process parameters. It is shown that the laser power and the scanning speed are the key technological parameters for the simulation of the lunar soil laser melting folding, which affect the laser melting depth and diameter. The typical defects such as the holes and the balling effect are likely to be seen in the molten forming process of the simulated lunar soil, so it is necessary to further analyze and optimize the mechanism and the forming parameters of the laser phase transformation of the lunar soil simulant.