Numerical modelling of ECMM of micro-dimples considering the effect of 3-phase electrolyte

Prashanth, Konda Gokuldoss; Patel, Divyansh Singh; Jain, V.K.; Ramkumar, J.

doi:10.1177/2516598419852208

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…Different other non-conventional methods can also be employed to alter the surface patterns by inducing desirable roughness and contact angles. Processes like electro-chemical discharge machining, 16 and chemical activation 12 can also be used to alter the surface roughness and create desirable surface patterns.…”

Section: Introductionmentioning

confidence: 99%

Comparison of adhesive joint strength of laser fabricated dimple textured Al–Mg alloy in different environment

Prakash

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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Joining of aluminium alloys using adhesives has got tremendous applications in aviation, marines, and unmanned aerial vehicles. Surface preparation plays a crucial role in the adhesive joining of two surfaces. In this research work, the nanosecond fibre laser was used to create dimple-shaped textures on aluminium–Mg alloy (AA5754). Dimple-shaped textures were created under three different atmospheric conditions. Experiments were performed in open-air conditions, under static water conditions, and under flowing water conditions. Texture depths differed by varying the scanning speed of laser beam. Texture pitch was also varied at two different levels, that is 300 [Formula: see text]m and 400 [Formula: see text]m in both texturing directions. Two different scanning speeds of 2.5 and 5 mm/s of the laser beam were investigated. Surface contact angle of each sample was evaluated using a goniometer to measure surface hydrophobicity/ hydrophillicity. Surface roughness and dimensions of dimples were measured using a digital microscope. Scanning electron microscopes were used to evaluate the morphology of textured surfaces. An epoxy-based adhesive (partite) was uniformly spread over textured zones and samples for standard tensile tests were prepared as per ASTM. Shear lap tensile tests were carried out to evaluate the shear lap strength of each joint on a universal testing machine. Surfaces prepared in static water conditions and flowing water conditions resulted in completely different morphology compared to open-air processing. It was observed that dimple patterns fabricated under flowing water conditions had the highest bonding strength among all the three processing environments.

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Section: Introductionmentioning

confidence: 99%

Comparison of adhesive joint strength of laser fabricated dimple textured Al–Mg alloy in different environment

Prakash

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…9 Surface texturing is an important process of transferring required patterns on the material surface for certain property enhancement. 10 Different methods can be readily used for surface texturing processes like laser processing, 11 electrochemical micro-machining, 12 plasma treatment, etc. conveniently on a metal surface.…”

Section: Introductionmentioning

confidence: 99%

Underwater laser texturing for enhanced adhesive joint bonding strength of Al-Mg alloy

Kumar

Prakash

2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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In this research work, nanosecond pulsed fiber laser texturing was performed on Aluminum-Mg alloy (AA5754). Effect of laser texturing as a surface pre-treatment method in adhesive bonding process was investigated in details. Laser texturing was performed in under open air condition, under static water condition and under flowing water conditions. Grid shaped textures were fabricated on Al-Mg alloy work-pieces. The geometrical parameters of grid texturing were varied at two levels. Pitch of the lines were kept at 300 and 400 μm in both horizontal as well as vertical directions. Scanning speed of laser texturing process was also varied at two levels that is 2.5 and 5 mm/s. Total four experiments were conducted in each atmospheric conditions. Surface roughness and water contact angle of each surface was evaluated. Surfaces were also characterized using scanning electron microscope. Lap shear strength of each samples were evaluated using a universal tensile testing machine (UTM). Failed surfaces were analyzed to investigate the mode of failure. It was observed that the textures created in flowing water conditions resulted in cohesive mode of failure while samples fabricated in open air and in under static water conditions failed in adhesive and mixed mode respectively. Samples prepared in flowing water conditions resulted in higher lap shear strengths compared to static water, open air, and plain surfaces.

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Mechanisms and characterization of a novel hybrid laser-enhanced particle laden electrochemical fabrication process for high quality micro-dimples on germanium wafers

Zhu,

Han,

Wang

et al. 2024

Journal of Materials Processing Technology

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Numerical modelling of ECMM of micro-dimples considering the effect of 3-phase electrolyte

Cited by 5 publications

References 34 publications

Comparison of adhesive joint strength of laser fabricated dimple textured Al–Mg alloy in different environment

Comparison of adhesive joint strength of laser fabricated dimple textured Al–Mg alloy in different environment

Underwater laser texturing for enhanced adhesive joint bonding strength of Al-Mg alloy

Mechanisms and characterization of a novel hybrid laser-enhanced particle laden electrochemical fabrication process for high quality micro-dimples on germanium wafers

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