Experimental analysis and predictive modelling of Ti6Al4V laser surface texturing for biomedical applications

Laser surface texturing (LST) is a powerful technique for creating high quality micro-textured patterns with different shapes and sizes on metallic biomaterials. Textured surfaces may improve the interaction between bone implant by increasing contact area thus promoting regeneration. The goal of this study was to explore Nd:YAG laser potential micro-scale pillars pyramid geometry, dimensions in selected range, reproducible way. First, design texture grooves were addressed, then proceeding pillars. Two machining marking strategies investigated, consecutive processing strategy continuous mode due resultant smoother grooves. Then, cross-hatched pattern designed pillar targeted dimensions. Given direct effect LST drawing parameters dimensions, three mathematical models, one each dimension (groove width, width depth) developed. These models are accurate tools predicting range approach effective well-defined, uniform equally spaced textures Ti6Al4V parts, A combination target also considering suitable wettability roughness biomedical applications.