Studies on the application of laser surface texturing to improve the tribological performance of AlCrSiN-Coated surfaces

Kim, Bom Sok; Chung, Woo Yooung; Rhee, M. H.; Lee, Sang-Yul

doi:10.1007/s12540-012-0483-2

Cited by 14 publications

(3 citation statements)

References 30 publications

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“…Due to the integrated computer-aided design software with the laser system equipment, a wide variety of geometrical shape disclosure can be applied for microstructuring, allowing different patterns to be designed without difficulty. Until now, the most used pattern designs were dimple/hole/crater array [41][42][43][44][45][46][47][48][49], parallel lines [50][51][52][53][54][55][56][57][58][59][60], meshed or cross-pattern [48,53,55,[60][61][62][63]. The outstanding pattern designs were square [49,57,62], triangle [62], coral-rock and star-like [64], single ellipse [39,65,66], lotus leaf-like [52], prominent structures [67], octagons [39], and Siberian-Cocklebur-like [34].…”

Section: Microstructuringmentioning

confidence: 99%

Wettability and Surface Roughness Analysis of Laser Surface Texturing of AISI 430 Stainless Steel

et al. 2022

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Due to its wide applicability in industry, devising microstructures on the surface of materials can be easily implemented and automated in technological processes. Laser Surface Texturing (LST) is applied to modify the chemical composition, morphology, and roughness of surfaces (wettability), cleaning (remove contaminants), reducing internal stresses of metals (hardening, tempering), surface energy (polymers, metals), increasing the adhesion (hybrid joining, bioengineering) and decreasing the growth of pathogenic bacteria (bioengineering). This paper is a continuation and extension of our previous studies in laser-assisted texturing of surfaces. Three different patterns (crater array-type C, two ellipses at 90° overlapping with its mirror-type B and 3 concentric octagons-type A) were applied with a nanosecond pulsed laser (active medium Nd: Fiber Diode-pumped) on the surface of a ferritic stainless steel (AISI 430). Micro texturing the surface of a material can modify its wettability behavior. A hydrophobic surface (contact angle greater than 90°) was obtained with different variations depending on the parameters. The analysis performed in this research (surface roughness, wettability) is critical for assessing the surface functionality, characteristics and properties of the stainless steel surface after the LST process. The values of the surface roughness and the contact angle are directly proportional to the number of repetitions and inversely proportional to the speed. Recommendations for the use of different texturing pattern designs are also made.

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Section: Microstructuringmentioning

confidence: 99%

Wettability and Surface Roughness Analysis of Laser Surface Texturing of AISI 430 Stainless Steel

et al. 2022

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“…The so called laser-manufactured "micro-dimples" are microstructures already analyzed in recent research (Scaraggi et al, 2013;Kim et al, 2012). The fundamental formation process is the well-known process of laser ablation, which forms single ablation cavities by single laser pulses or complex superposition of many pulses.…”

Section: Laser-based Cutting Tool Productionmentioning

confidence: 99%

Effect of Solid-State Laser Parameters on the Surface’s Topography Formation During Texturization of Hard Metal Cutting Tools

Teixeira

Reis

Janßen

2015

J.Aerosp. Technol. Manag.

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ABSTRACT:The objective of this paper is to analyze the influence of specific laser system parameters on the microstructure of the ring formation process on the hard metal tool's surface. The parameters analyzed were: working distance, incident beam power and tool surface treatment, flank and rake. The microstructures were analyzed with regard to its diameter and depth by an optical 3-D surface metrology instrument. The analyses were made by comparing the ring's process formation with the dimples' process formation, a well-known process called ablation. The results show that the ring's diameter is increased by increasing incident beam power or the distance of the laser beam's focus for both surfaces. In addition, increasing the working distance decreases the ring's depth for both surfaces.

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“…In addition to providing superior properties such as enhancing durability and tribological properties, many undesirable conditions such as excessive heat-induced deformation may occur in the processing of laser materials. Studies show that the tribological performance of surfaces can be improved with laser texturing [19]. The microstructure changes that occur when the material is processed by the laser can increase the wear resistance [7].…”

Section: Introductionmentioning

confidence: 99%

Laser parameter optimization for surface texturing of inconel 625

Fi̇dan

Canel

Sınmazçelik

2021

Materialwissenschaft Werkst

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The optimum laser parameters required for the inconel 625 alloy surfaces to have the desired properties have been determined. Process parameters were optimized to get maximum heat affected zone depth (HAZ) and width and maximum aspect ratio and minimum defect outside of the spot area independently of each other. Also, the effect rates of the examined process parameters on the treated surface quality were determined separately for each surface feature. As a result of optimization using Taguchi method, the most effective parameters to obtain the desired surface were obtained as gas type with 72.26 % for heat affected zone depth, gas type with 90.46 % for heat affected zone width, gas type with 81.57 % for aspect ratio, pulse energy with 30.99 % for minimum defect outside of the spot area. The best results were obtained on the surfaces obtained as a result of the confirmation experiment with the new parameters obtained with the Taguchi method. Since the results of the confirmation experiments are highly compatible with the results suggested by the Taguchi method, the Taguchi method may be concluded as reliable in the laser ablation of the inconel 625 surface.

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Studies on the application of laser surface texturing to improve the tribological performance of AlCrSiN-Coated surfaces

Cited by 14 publications

References 30 publications

Wettability and Surface Roughness Analysis of Laser Surface Texturing of AISI 430 Stainless Steel

Wettability and Surface Roughness Analysis of Laser Surface Texturing of AISI 430 Stainless Steel

Effect of Solid-State Laser Parameters on the Surface’s Topography Formation During Texturization of Hard Metal Cutting Tools

Laser parameter optimization for surface texturing of inconel 625

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