Enhanced tribological performance and nanostructuring speed on AlTiN by beamshaping technology

Abstract

For the first time, a dynamic beamshaping technology has been utilized for the efficient production of periodic nanostructures on top of AlTiN coating to enable dry machining without costly and environmentally hazardous cutting fluids. First, a variety of periodic nanostructures with periods in a range of 740-273 nm were produced utilizing different wavelengths. Additionally, beamshaping technology increased productivity by 4008% up to 105 cm 2 min −1 by shaping the Gaussian beam into a rectangular beam of 500 × 30 µm. To simulate the application load and resulting heat production during manufacturing, friction analysis was performed at room and elevated temperature to 500°C. The analysis revealed a significant reduction in the friction coefficientup to 27% and 19% at room temperature and 500°C, respectively. The combination of these results demonstrates that the proposed method can be scaled up for the mass production of functionalized machining tools for dry machining.

Advancements in high-speed surface micro/nanostructuring using multi-beam processing approaches

“…These technologies are revolutionizing the field, enabling the precise and rapid creation of complex surface patterns. SLMs, in particular, offer unparalleled control in beam shaping, allowing for the efficient production of intricate micro and nanostructures [2,5,6]. Their ability to dynamically alter the beam profile paves the way for diverse and flexible structuring capabilities.…”

“…Innovations like using cylindrical lenses have expanded the capabilities of DLIP, allowing it to structure bigger areas more efficiently [8,9]. Alongside DLIP, multi-beam techniques using diffractive optical elements (DOEs) have revolutionized surface structuring [6,[10][11][12]. By projecting multiple laser beams at once, these methods have significantly sped up the structuring process without losing precision.…”

Beam shaping for high-speed surface functionalisation

“…The applications of LIPSS include decorative marking and generating functional surfaces with improved biocompatibility, tribological or antibacterial properties. [2][3][4] The generated surface properties can be replicated in polymers using a structured metal mold.…”