Surface enhancement is critical to improve overall performance, service functionality, and longevity of metallic components for complex service environments in diverse industrial fields. Laser precision engineering has advantages of high precision, high flexibility, high-energy density, and slight thermal damage, which shows excellent prospects for metallic surface. This study focuses on surface enhancement of various metallic alloys induced by laser precision processing in our group, which mainly includes multi-metal laser cladding, laser joining of dissimilar materials, and laser polishing of additively manufactured metallic alloys. Moreover, on-line monitoring technologies as well as machine learning methods have been applied to develop intelligent processing.

表面增强对于提高不同工业领域复杂服务环境中金属部件的整体性能、服务功能和使用寿命至关重要。激光精密工程具有精度高、灵活性高、能量密度高、热损伤小等优点，在金属表面处理方面显示出良好的前景。本课题组的研究重点是激光精密加工对各种金属合金的表面强化，主要包括多金属激光熔覆、异种材料激光连接、增材制造金属合金激光抛光等。此外，还应用在线监测技术和机器学习方法来开发智能处理。