激光冲击微成形研究现状及展望

Laser shock microforming (LSM) is an advanced manufacturing technology that utilizes high-energy pulsed laser-induced plasma shock waves to achieve micro/ nano-scale plastic deformation. The principles and equipment, size effects, technical applications, recent expansions, limitations, and concludes with future perspectives of LSM were systematically reviewed. The core equipment for LSM primarily is consist of high-energy pulsed laser systems, precision motion control systems and confinement-ablation systems, enabling precise micro/ nano structure formation through controlled laser pulses. The technology has been extensively investigated for micro-imprinting and micro-drawing applications, demonstrating successful implementation in the fabrication and production of micro/ nano-structures. Furthermore, novel LSM variants including laser shock micro-hydroforming, laser shock micro-bubble forming and laser shock micro-riveting have been developed, fostering diversified advancements in laser shock technology. Finally, a systematic summary and prospective were carried out based on current developments and inherent limitations of this technology.