Water jet guided laser microdrilling of aerospace alloys: Correlation of material properties to process time and quality

Subasi, Levent; Diboine, Jérémie; Gunaydin, Aydemir; Tuzemen, Cansinem; Ozaner, Ozan Can; Martin, Ronan

doi:10.2351/7.0000302

Cited by 13 publications

(3 citation statements)

References 21 publications

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“…Subasi et al studied a laser beam arranged through a stream of water to track a micro-drilling process. The materials used were nickel alloys frequently used in the aeronautical domain [35].…”

Section: Synthesis Of Literaturementioning

confidence: 99%

Energy Efficiency in CO2 Laser Processing of Hardox 400 Material

Girdu

Gheorghe

2022

Materials

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The use of laser technology for materials processing has a wide applicability in various industrial fields, due to its proven advantages, such as processing time, economic efficiency and reduced impact on the natural environment. The expansion of laser technology has been possible due to the dynamics of research in the field. One of the directions of research is to establish the appropriate cutting parameters. The evolution of research in this direction can be deepened by determining the efficiency of laser cutting. Starting from such a hypothesis, the study contains an analysis of laser cutting parameters (speed, power and pressure) to determine the linear energy and cutting efficiency. For this purpose, the linear energy and the cutting efficiency were determined analytically, and the results obtained were tested with the Lagrange interpolation method, the statistical mathematical method and the graphical method. The material chosen was Hardox 400 steel with a thickness of 8 mm, due to its numerous industrial applications and the fact that it is an insufficiently studied material. Statistical data processing shows that the maximum cutting efficiency is mainly influenced by speed, followed by laser power. The results obtained reduce energy costs in manufacturing processes that use the CO2 laser. The combinations identified between laser speed and power lead to a reduction in energy consumption and thus to an increase in processing efficiency. Through the calculation relationships established for linear energy and cutting efficiency, the study contributes to the extension of the theoretical and practical basis.

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Section: Synthesis Of Literaturementioning

confidence: 99%

Energy Efficiency in CO2 Laser Processing of Hardox 400 Material

Girdu

Gheorghe

2022

Materials

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“…Therefore, water-assisted laser machining can avoid excessive oxidation, thermal stress, HAZ, and other damage during machining. Water-assisted laser machining methods mainly include underwater laser machining [ 12 ], waterjet-guided laser machining [ 13 ], and waterjet-assisted laser machining [ 14 ]. Underwater laser machining is the simplest and most commonly used method of water-assisted laser machining.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Coaxial Waterjet-Assisted Laser Scanning Machining of Nickel-Based Special Alloy

Wang

Yuan

et al. 2023

Micromachines

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The problems of the recast layer, oxide layer, and heat-affected zone (HAZ) in conventional laser machining seriously impact material properties. Coaxial waterjet-assisted laser scanning machining (CWALSM) can reduce the conduction and accumulation of heat in laser machining by the high specific heat capacity of water and can realize the machining of nickel-based special alloy with almost no thermal damage. With the developed experimental setup, the laser ablation threshold and drilling experiments of the K4002 nickel-based special alloy were carried out. The effects of various factors on the thermal damage thickness were studied with an orthogonal experiment. Experimental results have indicated that the ablation threshold of K4002 nickel-based special alloy by a single pulse is 4.15 J/cm2. The orthogonal experiment results have shown that the effects of each factor on the thermal damage thickness are in the order of laser pulse frequency, waterjet speed, pulse overlap rate, laser pulse energy, and focal plane position. When the laser pulse energy is 0.21 mJ, the laser pulse frequency is 1 kHz, the pulse overlap is 55%, the focal plane position is 1 mm, and the waterjet speed is 6.98 m/s, no thermal damage machining can be achieved. In addition, a comparative experiment with laser drilling in the air was carried out under the same conditions. The results have shown that compared with laser machining in the air, the thermal damage thickness of CWALSM is smaller than 1 μm, and the hole taper is reduced by 106%. There is no accumulation and burr around the hole entrance, and the thermal damage thickness range is 0–0.996 μm. Furthermore, the thermal damage thickness range of laser machining in the air is 0.499–2.394 μm. It has also been found that the thermal damage thickness is greatest at the entrance to the hole, decreasing as the distance from the entrance increases.

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“…WJGL processing technology has become an effective tool for processing high-precision devices in microelectronics and medicine [ 15 , 16 , 17 ]. In recent years, WJGL processing technology has gradually started to be applied in the field of metal materials, especially in high-temperature-resistant aerospace alloys, where water-jet guided laser cutting technology has its unique processing advantages and application prospects [ 18 , 19 , 20 ]. Traditional laser cutting will cause thermal damage to the metal surface and produce a white layer.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Prediction of Water-Jet-Guided Laser Cutting Depth for Inconel 718 Material Using Response Surface Methodology

Zhao

et al. 2023

Micromachines

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In this study, the water-jet-guided laser (WJGL) method was used to cut Inconel 718 alloy with high temperature resistance. The effect of critical parameters of the water-jet-guided laser machining method on the cutting depth was studied by a Taguchi orthogonal experiment. Furthermore, the mathematical prediction model of cutting depth was established by the response surface method (RSM). The validation experiments showed that the mathematical model had a high predictive ability for cutting depth. The optimal cutting depth was obtained by model prediction, and the error was 5.5% compared with the experimental results. Compared with the traditional dry laser cutting, the water conducting laser method reduced the thermal damage and improved the cutting quality. This study provides a reference for the precision machining of Inconel 718 with a water-jet-guided laser.

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Water jet guided laser microdrilling of aerospace alloys: Correlation of material properties to process time and quality

Cited by 13 publications

References 21 publications

Energy Efficiency in CO2 Laser Processing of Hardox 400 Material

Energy Efficiency in CO2 Laser Processing of Hardox 400 Material

Experimental Study on Coaxial Waterjet-Assisted Laser Scanning Machining of Nickel-Based Special Alloy

Modeling and Prediction of Water-Jet-Guided Laser Cutting Depth for Inconel 718 Material Using Response Surface Methodology

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