Reducing Feature Size in Laser Implantation Texturing
Bart Ettema, Dave Matthews, Gert-Willem Römer
TL;DR
This paper introduces a laser-based method to create tiny, durable surface textures on rolls for industrial applications.
Contribution
The study demonstrates laser implantation for creating micro-scale surface features smaller than previously reported.
Findings
Laser implantation successfully produced dome-shaped structures with diameters under 150 µm and heights between 1 µm and 15 µm.
The process eliminates the need for post-coating techniques by embedding ceramic particles directly into the surface.
Abstract
Embossing rolls are used in a variety of sectors to transfer surface textures to a product. Textures on the rolls are typically achieved by material-removal techniques, resulting in craters in the surface of the roll. The wear resistance of the surfaces is improved by additional coating technologies. A novel process offering improved surface design freedom and which negates the need for post-coating techniques is the embedding of micro-meter-sized ceramic particles in the surface of the roll. This can be achieved through micro-additive processing. This work presents and discusses experimental results of surface texturing through locally derived laser-induced melt pools in which ceramic particles are dissolved. This process is termed laser implantation, or laser dispersing. Using this technology, dome-shaped surface structures with significantly increased hardness compared to the bare…
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Taxonomy
TopicsLaser Material Processing Techniques · Additive Manufacturing Materials and Processes · High Entropy Alloys Studies