Research States and Development Tendency of Supersonic Laser Deposition Technology

Supersonic laser deposition (SLD) is a newly developed laser hybrid manufacturing technology, which combines the advantages of laser irradiation and cold spray. With the synergistic effects of thermal energy from laser irradiation and kinetic energy from high velocity particles impacting, a wider range of materials can be deposited by this technique and unique microstructures and properties can also be obtained. Based on the research results of the authors' team in the field of SLD, the latest research progress at home and abroad from the aspect of technique principle, deposition material range, phase and microstructure, and performance characterization are summarized. And then, the future trend and challenge of SLD technology are prospected from the perspective of process exploration, equipment development and property evaluation.