The Effects of Laser Surface Texturing Parameters on the Surface Characteristics of Biomedical-Grade Stainless Steel

Kasman, Şefika; Uçar, İbrahim Can; Ozan, Sertan

doi:10.1007/s11665-023-08374-7

Cited by 5 publications

(3 citation statements)

References 64 publications

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“…The relationship between scanning speed and mean surface roughness is demonstrated in Figure 5. It has been ascertained that an increase in scanning speed is associated with a discernible trend toward a reduction in surface roughness, as reported elsewhere [28,[31][32][33][34][35]. This phenomenon's observed impact was found to be particularly notable within the range of scanning speeds spanning from 450 mm/s to 700 mm/s.…”

Section: The Impact Of Parameters On Surface Roughnesssupporting

confidence: 70%

“…The respective proportions of carbon content in L-3, L-6, L-9, L-12, L-18, and L-15 are measured to be 2.51%, 2.72%, 2.79%, 3.10%, 3.13%, and 3.50%, respectively. The presence of carbon that has been detected could potentially be ascribed to the contamination of carbon rather than being a result of the laser surface treatment procedures as reported elsewhere [32,37,38].…”

Section: Surface Chemical Compositionmentioning

confidence: 65%

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THE EFFECTS OF LASER MICRO-ENGRAVING VARIABLES ON THE SURFACE CHARACTERISTICS OF THE Ti-6Al-7Nb ALLOY

Ozan

2024

Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi

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This investigation aims to analyze the impact of scanning direction, scanning speed, and power level (%) on the surface roughness of Ti-6Al-7Nb alloy specimens subjected to laser micro-engraving. The laser micro-engraving process was carried out by scanning the predetermined geometric configuration six times. Factorial analysis was implemented to determine the impact of system parameters on the surface roughness. Throughout the micro-engraving operations, line spacing, frequency, and pulse width parameters were maintained at a consistent value of 0.03 mm, 100 kHz, and 300 ns, respectively. The optimal conditions for achieving the lowest surface roughness were observed at a scanning speed of 700 mm/s, a power level of 60%, and a scanning direction of 90°. Moreover, in accordance with the experimental parameters employed in this investigation, it was observed that increasing the scanning speed while maintaining a constant power level (%) reduced surface roughness. There was a direct correlation between the increase in power level (%) and a corresponding increase in surface roughness.

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Section: The Impact Of Parameters On Surface Roughnesssupporting

confidence: 70%

Section: Surface Chemical Compositionmentioning

confidence: 65%

THE EFFECTS OF LASER MICRO-ENGRAVING VARIABLES ON THE SURFACE CHARACTERISTICS OF THE Ti-6Al-7Nb ALLOY

Ozan

2024

Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi

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“…The value of a surface's contact angle depends on the surface's roughness, surface chemistry, and topography which influence the surface's texture. 27,[56][57][58] According to the ANOVA results, each parameter for the contact angle was statistically insignificant. The contact angles characterize the surface as super hydrophilic and hydrophilic on all surfaces except E19 lasertextured surface.…”

Section: Discussionmentioning

confidence: 99%

Laser textured Ti-6Al-7Nb alloy for biomedical applications: An investigation of texturing parameters on surface properties

Ozan,

Bilgin,

Kasman

2023

Proc Inst Mech Eng H

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Surface texturing with a laser beam is an effective method for engraving on the surface of biomaterials. The four laser texturing parameters (scan speed, frequency, fill spacing, and pulse width) having five different values were associated with five different scanning strategies (scan direction), and a total of 25 texturing conditions were tested on the Ti-6Al-7Nb alloy surface. The surface roughness and wettability of the textures created with a 20 W nanosecond fiber laser with a wavelength of 1064 nm on the surface of Ti-6Al-7Nb biocompatible alloy were investigated. Laser texturing parameters were analyzed according to the lowest surface roughness and a hydrophilic surface by creating L25 orthogonal arrays. The surface roughness values ranged between 2 and 26 µm. The lowest surface roughness with a value of 2.21 µm was achieved when the texture was processed with a frequency of 150 kHz, a fill spacing of 0.02 mm, a scan speed of 800 mm/s, a pulse width of 250 ns, and a cross-hatch strategy of 0°/90°. Considering the wettability test results, it was revealed that most of the textured surfaces have super hydrophilic and hydrophilic characteristics except the surface with a contact angle of 92.93°. The relevant surface was textured with 75 kHz frequency, 1000 mm/s scan speed, 0.05 mm fill spacing, 200 ns pulse width, and 45°/−45° cross-hatch strategy.

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Experimental investigation of laser texturing on surface roughness and wettability of PAHT CF15 fabricated by fused deposition modeling

Prasad,

Prakash

2024

Polymer Composites

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Fused deposition modeling (FDM) process has been emerged as an effective method for fabrication of different types of products without the need for expensive molds or material wasting subtractive processes. Polyamide composites possess higher mechanical properties, temperature resistance and inertness to many chemicals making them an attractive choice for many applications. This study focuses on the utilization of a nanosecond fiber laser texturing process as a post processing method for improving the surface finish and surface hydrophobicity of polyamide composite (PAHT CF15) produced through FDM process. PAHT CF15 is a high temperature resistant polyamide filament with 15% carbon fiber. These effects of texturing direction on surface finish and wettability of FDM printed PAHT CF15 samples were evaluated by texturing in two mutually perpendicular directions namely longitudinal and transverse. Experiments were also performed to determine the effect of laser power and scanning speed by varying the power at four levels, that is 20, 30, 40, and 50 W and scanning speed at two levels, that is 2000 and 4000 mm/s. Moisture absorption test of the textured surfaces were performed in an incubator at controlled temperature and relative humidity condition. A defocused laser beam was utilized to melt the upper surface of the 3D printed material in order to bring the changes at the surface level without causing surface ablation. It was observed that high speed laser processing can bring about the significant changes in surface finish, wettability and moisture absorption of the FDM printed parts.Highlights PAHT CF15 composites possess excellent mechanical properties. FDM printed PAHT CF15 parts have poor surface finish and low contact angles. Fiber lasers were employed to improve surface roughness. Wettability of textured surfaces was decreased by a maximum of 46%.

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The Effects of Laser Surface Texturing Parameters on the Surface Characteristics of Biomedical-Grade Stainless Steel

Cited by 5 publications

References 64 publications

THE EFFECTS OF LASER MICRO-ENGRAVING VARIABLES ON THE SURFACE CHARACTERISTICS OF THE Ti-6Al-7Nb ALLOY

THE EFFECTS OF LASER MICRO-ENGRAVING VARIABLES ON THE SURFACE CHARACTERISTICS OF THE Ti-6Al-7Nb ALLOY

Laser textured Ti-6Al-7Nb alloy for biomedical applications: An investigation of texturing parameters on surface properties

Experimental investigation of laser texturing on surface roughness and wettability of PAHT CF15 fabricated by fused deposition modeling

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