Functional laser surface texturing (LST) arose in recent years as a very powerful tool for tailoring the properties of parts and components to their later application. As result, self-cleaning surfaces with an improved wettability, efficient engine optimized tribological properties, functional implants increased biocompatibility can be achieved today. However, increasing capabilities LST, predi...

Cemented carbides are outstanding engineering materials widely used in quite demanding material removal applications. In this study, laser surface texturing is implemented for enhancing, at the surface level, the intrinsic bulk-like tribological performance of these materials. In this regard, hexagonal pyramids patterned on the cutting surface of a tungsten cemented carbide grade (WC–CoNi) have...

Surface engineering is widely used in different areas, such as the aerospace industry or the biomechanical and medical fields. Specifically, laser surface modification techniques may obtain specific surface finishes for special applications. In texturing laser procedures, the control of processing parameters has a great influence on the geometry and characteristics of the treated area. When the...

This paper presents a new ultrasonic servo control drive for electro discharge texturing system industrial applications. The new drive is aiming to overcome the current teething issues of the existing electro discharge texturing system, servo control drive level of precision, processing stability, dynamic response and surface profile of the machined products. The new ultrasonic servo control dr...

The present study investigates the effect of partial surface texturing, containing large number micro-dimples, in lubrication mechanisms. A CFD model is applied to examine influence texturing on pressure and velocity distribution flow between mating surfaces with relative motion or drop. Various parameters were analyzed. results indicate that equivalent volume step effectively simulates for a w...

Nanoscale surface corrugation strongly determines the plasmonic response of gold nanoparticles with dimensions of several tens of nanometres. Scattering spectra of individual spheres with a rough surface were found to red-shift and broaden. The plasmon modes exhibited quadrupole damping, in contrast to particles with smooth surfaces. Additionally, rougher spheres display a higher SERS activity,...