In aerospace manufacturing, precise control of surface microstructures has become a critical pathway for enhancing equipment performance. Hot-section components such as aero-engine blades and combustor parts operate under extreme service conditions and face multiple challenges, including airflow separation, ice accretion, wear, and corrosion. Traditional surface-treatment methods—such as mechanical shot peening and electrochemical etching—suffer from inherent limitations, including low precision, large heat-affected zones, and poor adaptability. These methods struggle to achieve micron-scale structures on complex curved geometries.

For difficult-to-machine materials such as single-crystal superalloys and titanium alloys, conventional processes often induce micro-cracks and thick recast layers, severely compromising fatigue strength and long-term reliability. As next-generation aerospace systems demand higher aerodynamic efficiency, improved anti-icing performance, and extended service life, the industry requires a micro-scale, low-damage, non-contact surface-processing technology capable of delivering ultra-high precision.

Laser precision surface-etching technology has emerged in response to this need, enabling high-accuracy functional surface modification of aerospace components and offering a transformative solution for advanced surface engineering.