Surface polishing of additively manufactured Ti6Al4V titanium alloy by using a nanosecond pulse laser

Jaritngam, Pakin; Saetang, Viboon; Qi, Huan; Dumkum, Chaiya

doi:10.1007/s00170-023-11722-5

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…It has been reported that SLP increased the fatigue strength of magnesium alloys by 56 %, which was better than SP or cavitation peening (CP) [68]. As the surface polishing of PBF/Ti6Al4V using a nanosecond pulse laser has been reported [69], the SLP used in the experiment conducted in this study was a combination of laser polishing and LP.…”

Section: Introductionmentioning

confidence: 93%

The Effects of Submerged Laser Peening, Cavitation Peening, and Shot Peening on the Improvement of the Torsional Fatigue Strength of Powder Bed Fused Ti6al4v Produced Through Laser Sintering

Soyama,

Wong,

Eakins

et al. 2024

Preprint

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Section: Introductionmentioning

confidence: 93%

The Effects of Submerged Laser Peening, Cavitation Peening, and Shot Peening on the Improvement of the Torsional Fatigue Strength of Powder Bed Fused Ti6al4v Produced Through Laser Sintering

Soyama,

Wong,

Eakins

et al. 2024

Preprint

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“…However, the inability to smooth macroscopic surface fluctuations restricted further reduction in roughness. Jaritngam et al [32] conducted nanosecond laser polishing on the surfaces of additively manufactured Ti6Al4V parts with varying morphologies and roughness exceeding 10 µm. They studied the effects of initial surface roughness, laser parameter scanning strategy, and argon flow rate on surface roughness and morphology.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Surface Integrity of Conical Hole in Laser Polishing 440C Stainless Steel

Zhang,

Cai,

Zhang

et al. 2024

Metals

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In the machining process of 440C stainless steel using ball-end milling, the generation of machined traces is an inevitable outcome. Traditional polishing methods, when applied to the milling surfaces of small conical holes, exhibit significant limitations. However, the application of nanosecond pulsed laser polishing while maintaining dimensional integrity has proven effective in mitigating these issues. The parameters for the laser and scanning strategy were empirically determined through planar experiments. The results showed a reduction in surface roughness to a minimum value, representing a decrease of approximately 41.7%. Further validation experiments were conducted on the ball-milled surface of small conical holes. The rate of roughness reduction in these experiments surpassed that of planar surface polishing with an improvement of approximately 73.6%. The scanning strategy’s applicability was confirmed, and the post-polishing surface morphology was found to be largely in line with the prediction. The remelt layer and heat-affected zone resulting from nanosecond laser polishing were observed to be below 5 μm, significantly preserving the dimensional integrity of the conical hole’s internal surface. Moreover, nanosecond laser polishing was found to substantially enhance the surface hardness of the material, with an increase ranging from 100% to 180%. This study underscores the efficacy of nanosecond laser polishing in enhancing the internal surface of small conical holes, thereby improving the surface properties. Consequently, this method presents a reliable solution for the removal of machined traces from complex internal surfaces.

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Microstructural evolution and mechanical properties of LDED Ti-6Al-4 V alloy polished with a hybrid laser polishing technique

Su,

Liu,

Ouyang

et al. 2024

Int J Adv Manuf Technol

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Surface polishing of additively manufactured Ti6Al4V titanium alloy by using a nanosecond pulse laser

Cited by 7 publications

References 42 publications

The Effects of Submerged Laser Peening, Cavitation Peening, and Shot Peening on the Improvement of the Torsional Fatigue Strength of Powder Bed Fused Ti6al4v Produced Through Laser Sintering

The Effects of Submerged Laser Peening, Cavitation Peening, and Shot Peening on the Improvement of the Torsional Fatigue Strength of Powder Bed Fused Ti6al4v Produced Through Laser Sintering

Investigation of Surface Integrity of Conical Hole in Laser Polishing 440C Stainless Steel

Microstructural evolution and mechanical properties of LDED Ti-6Al-4 V alloy polished with a hybrid laser polishing technique

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