Tian Long See

Manufacturing Technology Centre (United Kingdom)

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i-10 index

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Co-Authors

Stefan Dimov

University of Birmingham

Paul J. Scott

University of Huddersfield

Wenhan Zeng

University of Huddersfield

Xiangqian Jiang

University of Huddersfield

Pavel Penchev

University of Birmingham

Shan Lou

University of Huddersfield

Aleksandra Michalek

University of Birmingham

Sundar Marimuthu

Manufacturing Technology Centre (United Kingdom)

Themistoklis Karkantonis

University of Birmingham

Lin Li

University of Manchester

Cooperative Institutions

University of Manchester

University of Birmingham

Engineering and Physical Sciences Research Council

Manufacturing Technology Centre (United Kingdom)

University of Huddersfield

Henry Royce Institute

Chinese Academy of Sciences

Coventry (United Kingdom)

Ningbo Institute of Industrial Technology

University of Nottingham

Author Statistics

Papers

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Surface Texture Characterization and Quantification of External and Internal Surfaces of Lpbf Ball Artefact Built with Different Inclination Angles

SSRN Electronic Journal (2022)

Shubhavardhan Ramadurga Narasimharaju Weidong Liu Wenhan Zeng Tian Long See Paul J. Scott

This unique research is aimed to characterize and quantify the diverse surface topographical asperities that emerge on the LPBF artefact built with different surface inclinations. A bespoke ball artefact is specially designed to characterize the longitudinal facet (0° to 180°) external and internal up-skin and down-skin surfaces. In addition, latitudinal facets of internal and external surfaces are characterized by full-turn (0°-360°) at the equator. The focus variation measurement technique is employed to characterize all the surfaces. The external longitudinal facets measurement range is limited to 135°, while the internal facet measurement is measured to 165°. The surface topographical asperities such as balling, staircase effect, particles-based features derived from un-melted/partially melted particles, and spatters are characterized and quantified concerning different inclination angles by adopting areal surface texture height parameters, hybrid parameter, and particles-based feature parameters mentioned in ISO 25178-2. Additionally, a comprehensive analysis of variance (ANOVA) is employed to verify the statistical significance of inclination angles on (i) the resultant surface roughness, (ii) the type of surface orientations, and (iii) the type of surfaces. Overall, based on the experimental results and ANOVA analysis, there exists a strong interrelationship between the different build inclination angles and the distinct surface topographical asperities

Ball (mathematics)

Characterization

Texture (cosmology)

10.2139/ssrn.4221657

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Study of new solid end mill for side milling of Ti-6Al-4V with improved cooling efficiency

Procedia CIRP (2021)

Raghuveer Gaddam Gaetano Massimo Pittalà N.Z. Yussefian Mikdam Jamal Tian Long See

In the present work, machining performance of a new solid carbide end mill has been investigated during side milling of Ti-6Al-4V. It is observed that adding cooling grooves on the clearance side of the cutting tool improves the tool performance by decreasing tool wear. Tool temperature measurements by infrared camera showed that these grooves decreased the tool temperature during the machining process. In order to understand the mechanisms behind this improvement, simulations of the coolant flow around the tool with and without these grooves are performed. Modelling and simulation results showed that these cooling grooves lead to an increase in the velocity of fluid at the head of the tool, which results in more efficient cooling and consequently the temperature along the cutting edge is decreased.

End mill

Cutting tool

10.1016/j.procir.2021.02.031

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Citations (1)

Feasibility study and demonstration of cleaning with laser adaptively by novel use of sensors

Procedia CIRP (2018)

Tian Long See Ioannis Metsios Daishu Qian Mohammad Antar Sundar Marimuthu

Surface cleaning is an essential step within the manufacturing process that ensures and enhances the integrity of the final component. Conventional surface cleaning methods have various shortfalls leading to the need for a more controllable surface cleaning methods such as laser cleaning. By utilising the principle behind laser induced breakdown spectroscopy (LIBS), an economical inline monitoring system is implemented in a laser cleaning cell, to achieve a closed-loop laser coating removal from tungsten carbide substrate. Cutting tests were performed on the re-coated laser coating removed inserts showing similar performance as compared to the as-received coated inserts.

Tungsten Carbide

Surface Integrity

Laser-induced breakdown spectroscopy

10.1016/j.procir.2018.08.146

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The influence of processing environment on laser-induced periodic surface structures generated with green nanosecond laser

Surfaces and Interfaces (2022)

Themistoklis Karkantonis Anvesh Gaddam Xiao Tao Tian Long See Stefan Dimov

Nanosecond

10.1016/j.surfin.2022.102096

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Citations (7)

Millisecond fibre laser drilling of alumina-alumina CMC

Procedia CIRP (2024)

Nicholas G Marsh Duncan P. Hand Tian Long See Sundar Marimuthu Pradip Ghosh

Millisecond

Alumina ceramic

Laser drilling

10.1016/j.procir.2024.08.165

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Comparative study between laser blasted and sandblasted surfaces of Ti6Al4V

Mohammad Tofayel Ahmed Tian Long See

Sandblasting is an established technique in generating surface textures on titanium and other metal alloys; these surfaces are desirable in the field of biomedical engineering as they promote osseointegration of medical implants. However, this process has significant limitations including, the embedment of abrasive particles causing changes to surface composition, lack of automation, and health hazards. Laser processing is becoming more common in the medical industry as a method to generate surface textures. Nanosecond laser systems are generally used in surface processing for their benefits of productivity and cost; however, the ultra-short pulsed lasers induce less thermal damage. This study probes the use of stochastic laser processing (laser-blasting) as an alternative to sandblasting to modify surfaces of Ti₆Al₄V. Laser processing parameters such as power and pulse durations were investigated in both nanosecond and femtosecond laser systems operating in the IR region. Surface morphology and microstructural changes of laser blasted samples were inspected using a variety of techniques (confocal microscopy, SEM and EDX) and then compared with those that had been sandblasted. The results obtained show that through careful selection of parameters, laser-blasting is capable of generating similar surfaces produced by sandblasting with limiting thermal damage.

Titanium alloy

10.1117/12.2542315

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Understanding the surface integrity of laser surface engineered tungsten carbide

The International Journal of Advanced Manufacturing Technology (2021)

Kafayat Eniola Hazzan Manuela Pacella Tian Long See

Abstract The study investigated the effect of fibre laser processing (1060 nm, 240-ns pulse duration) on the surface integrity of tungsten carbide (WC). The induced surface damage ranged from crack formation, porosity, balling, to spherical pores; the severity and presence of each were dependent on the laser parameters selected. The influence of fluence (0.05–0.20 J/cm 2 ), frequency (5–100 kHz), feed speed (250–2500 mm/s) and hatch distance (0.02–0.06 mm) on 2D and 3D surface roughness were analysed using the Taguchi technique. Fluence, frequency, and the interaction effect of these were the most influential factors on the surface integrity; from this a linear model was generated to predict the surface roughness. The model performed best at moderate to medium level of processing with an error between 1 and 10 %. The model failed to predict the material response as accurately at higher fluences with percentage errors between 15 and 36 %. In this study, a crack classification system and crack density variable were introduced to estimate the number of cracks and crack type within a 1-mm 2 area size. Statistical analysis of variance (ANOVA) found that fluence (63.49%) and frequency (29.38%) had a significant effect on the crack density independently but not the interaction of both. The crack density was minimised at 0.149 J/cm 2 and 52.5 kHz. To the author’s knowledge, for the first time, a quantitative analysis of the crack formation mechanism for brittle materials is proposed (post laser processing).

Tungsten Carbide

Brittleness

Surface Integrity

10.1007/s00170-021-07885-8

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Citations (7)

Transforming the inferior metal alloy by electroless Ni-P/SiC deposit

M. Franco Wei Sha Savko Malinov Tian Long See Hongfang Liu

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Data-driven optimisation of process parameters for reducing developed surface area ratio in laser powder bed fusion

The International Journal of Advanced Manufacturing Technology (2025)

Yuchu Qin Peizhi Shi Shan Lou Tian Long See Mikdam Jamal

10.1007/s00170-025-15038-4

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Laser Processing of KBr‐Modified SnO₂ for Efficient Rigid and Flexible Ambient‐Processed Perovskite Solar Cells

Solar RRL (2022)

Hongbo Mo Qian Chen Dong Wang Dongxu Cheng Suresh Maniyarasu

A combination of KBr modification and laser processing is utilized to prepare SnO 2 films for rigid and flexible perovskite solar cells (PSCs). The KBr modification effectively passivates the defects at the interface between SnO 2 and perovskite as well as grain boundaries of the perovskite film. A power conversion efficiency (PCE) of 20.14% is achieved with the KBr‐modified SnO 2 for the rigid PSCs fabricated under a relative humidity of around 65–75%, compared to the pristine SnO 2 films with a PCE of 18.66%. Then, a picosecond ultraviolet laser is employed to process KBr‐modified SnO 2 films on flexible substrates with a rapid scanning rate of 100 mm s −1 . The laser process improves the PCEs and durability of the PSCs. The flexible PSCs fabricated by the laser remain over 80% of their initial PCEs after 1000 bending cycles, higher than those fabricated by the hot plate showing 40% of their initial PCEs after the same bending cycles.

Ultraviolet

10.1002/solr.202200798

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Citations (10)