我国首次在太空微重力条件下制造出完整金属构件

Core Viewpoint - The Chinese Academy of Sciences' Institute of Mechanics has successfully conducted the first space laser melting metal additive manufacturing experiment in microgravity, marking a significant advancement in space technology [1] Group 1: Technology Breakthroughs - The experiment utilized a microgravity laser additive manufacturing payload aboard the "Lihong-1" remote rocket, achieving key technological breakthroughs in metal additive manufacturing under microgravity conditions [1] - The system demonstrated closed-loop control throughout the entire process, ensuring high reliability in the collaboration between the payload and the rocket [1] Group 2: Experimental Outcomes - The payload successfully returned to Earth via a parachute system, allowing for the recovery of metal components manufactured in space, along with comprehensive data and performance parameters [1] - The experiment has established a foundational theoretical framework and a process database for space metal manufacturing through various experimental systems, including microgravity drop towers and suborbital rockets [1] Group 3: Industry Implications - Space metal additive manufacturing is viewed as a critical enabling technology for future space missions, facilitating rapid in-orbit manufacturing and autonomous repair of spacecraft components [1] - This technology significantly reduces reliance on ground supplies, enhancing the flexibility and sustainability of deep space exploration, long-term operations of space stations, and lunar base construction [1]