The first step involves laser re-melting polishing, which significantly reduces surface roughness—reducing it from 19.1 µm to 2.6 µm for Ti-6Al-4V and from 18.5 µm to 2.5 µm for Scalmalloy®.

Following this, Direct Laser Interference Patterning (DLIP) is applied to create microstructures for surface functionalisation. This process not only improves the mechanical performance of the components but also allows for the precise fabrication of periodical structures that enhance surface functionalities. These advances are particularly valuable for aerospace and medical parts, where surface quality and performance are essential.

This two-step laser post-processing method demonstrates a significant improvement in additive manufacturing, offering a comprehensive solution to improve surface properties for complex and high-performance parts.