The "Innovative Project on Precision Laser Welding Technology for Large and Complex Lightweight Alloy Structures in the Aerospace Field," spearheaded by our unit, has conducted in-depth explorations into the cutting-edge technology and supporting equipment of dual-laser beam bilateral synchronous welding (DLBSW), driven by the strong demand for manufacturing large thin-walled structures. The project team not only successfully revealed the mysteries of the micro-thermo-metallurgical mechanism during laser welding, but also innovatively constructed an integrated precision control technology system. This series of technological breakthroughs directly led to the birth of the first domestically produced high-end dual-laser beam bilateral synchronous welding equipment, and based on this, successfully completed the research and development of the first domestic rocket tank manufactured using laser welding technology, marking a new stage in China's technological strength in this field.

With the mature application and continuous innovation of dual-laser beam bilateral synchronous welding technology, we are gradually expanding this cutting-edge technology from the aerospace field to a wider range of industrial manufacturing scenarios. To meet the welding needs of precision components such as low-temperature sensors, we have further optimized the laser welding parameters and process paths to ensure precise melt depth control with extremely low heat input, effectively suppressing welding deformation, and completely avoiding the risk of back-welding penetration. At the same time, combined with advanced online monitoring and feedback adjustment technology, we have achieved full-chain quality control of the welding process, ensuring that each product can successfully pass vibration tests and stringent airtightness tests, providing a more reliable and efficient welding solution for aerospace engines and other high-end equipment manufacturing fields.

Looking to the future, we will continue to deepen the intelligent and green transformation of laser welding technology, integrate advanced technologies such as big data and artificial intelligence, and promote the development of welding technology towards greater refinement and customization. By continuously optimizing the performance and efficiency of welding equipment, reducing production costs, and improving product competitiveness, we are committed to becoming a leader in the global laser welding technology field, contributing more "Chinese wisdom" and "Chinese strength" to promoting high-quality development of the manufacturing industry.