Pulsed Nd: YAG laser beam drilling: A review

GD Gautam, AK Pandey - Optics & Laser Technology, 2018 - Elsevier
Laser beam drilling (LBD) is one of non contact type unconventional machining process that
are employed in machining of stiff and high-strength materials, high strength temperature …

Insights into drilling film cooling holes on ceramic-coated nickel-based superalloys

B Vasudevan, Y Natarajan, V Sivalingam… - Archives of Civil and …, 2022 - Springer
This article aims at providing insights into various drilling operations relating to the
production of holes of small diameter for film cooling, particularly inclined holes, in aero …

Characteristics of micro-hole formation during fibre laser drilling of aerospace superalloy

S Marimuthu, M Antar, J Dunleavey - Precision Engineering, 2019 - Elsevier
High aspect ratio micro-holes are nowadays increasingly used in various applications
including aerospace, medical and automotive. This research investigates the characteristic …

Effect of drilling allowance on TBC delamination, spatter and re-melted cracks characteristics in laser drilling of TBC coated superalloys

Z Fan, X Dong, K Wang, W Duan, R Wang, X Mei… - International Journal of …, 2016 - Elsevier
Laser drilling of inclined holes on Ni-based superalloys coated with thermal barrier coatings
(TBC) was studied using numerical simulation and experiments. Two types of drilling, three …

An experimental study on quasi-CW fibre laser drilling of nickel superalloy

S Marimuthu, M Antar, J Dunleavey, D Chantzis… - Optics & Laser …, 2017 - Elsevier
Laser drilling of metals and alloys is extensively used in modern manufacturing industries to
produce holes of various size and shape. Currently, most laser drilling of aerospace nickel …

Investigation on millijoule femtosecond laser spiral drilling of micro-deep holes in thermal barrier coated alloys

R Wang, X Dong, K Wang, X Sun, Z Fan… - The International Journal …, 2021 - Springer
Ultra-short laser drilling of micro-holes with high quality and high processing efficiency in the
aviation industry is urgently needed. This study reported the fabrication of micro-deep holes …

An experimental investigation into the defects of laser-drilled holes in thermal barrier coated Inconel 718 superalloys

R Wang, K Wang, X Dong, Z Fan, W Duan… - … International Journal of …, 2018 - Springer
Delamination and microcracks as well as spatters are known to be inherently associated
with laser drilling thermal barrier coated materials. In this study, response surface method …

Study of the TBC delamination in nanosecond laser percussion drilling of inclined film cooling holes

J Niu, J Yang, J Tan, Z Qin, L Chen, T Jia… - Optics & Laser …, 2024 - Elsevier
To protect superalloys under extremely high temperatures in aero-engine core components,
thermal barrier coatings (TBC) are sprayed on the material surface and thousands of film …

Optimization of parameters for EDM drilling of thermal-barrier-coated nickel superalloys using gray relational analysis method

Y Guo, G Zhang, L Wang, Y Hu - The International Journal of Advanced …, 2016 - Springer
Thermal barrier coatings (TBCs) are used to provide thermal insulation for superalloy
components from high-temperature gas streams. Due to the insulativity of the top coat and …

Computational and experimental study on hole evolution and delamination in laser drilling of thermal barrier coated nickel superalloy

R Wang, W Duan, K Wang, X Dong, Z Fan, X Mei… - Optics and Lasers in …, 2018 - Elsevier
Computational study related to thermal stress and hole formation in laser percussion drilling
of thermal barrier coated nickel alloy based on a thermal-mechanical coupled model …