Comparison of the simulation and experimental of hole characteristics during nanosecond-pulsed laser drilling of thin titanium sheets

Ren, Naifei; Jiang, Lei; Liú, Dan; Liu, Lv; Wang, Quan

doi:10.1007/s00170-014-6293-6

Cited by 41 publications

(9 citation statements)

References 22 publications

(27 reference statements)

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“…7, the experimentally obtained diameters were larger than the simulated diameters at low laser fluence (i.e., 2.55 J/cm 2 ) because molten liquid-vapor material is ejected during drilling. This phenomenon is consistent with that proposed by Ren [8].…”

Section: Effect Of Laser Power Output On Ceramic Hole Drillingsupporting

confidence: 82%

“…Studies have shown that pulse frequency has the strongest effect on the taper and diameter of drill holes. Ren et al [8] reported the theoretical and experimental results of drilling titanium sheets by using a nanosecond-pulsed Nd:YAG laser; the numerically simulated values were smaller than the experimental values, possibly because the defocusing, plasma, and melting phenomena affect laser drilling, and these behaviors are difficult to simulate. Shukla and Lawrence [9] proposed a fiber and CO 2 laser surface treatment of Si 3 N 4 engineering ceramics and showed that laser surface treatment using near-infrared (NIR) fiber lasing is more effective for Si 3 N 4 engineering ceramics.…”

Section: Introductionmentioning

confidence: 99%

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A theoretical analysis and experimental verification of a laser drilling process for a ceramic substrate

Chen

Hsiao

Wang

et al. 2015

Int J Adv Manuf Technol

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This paper reports theoretical and experimental methods for drilling alumina ceramic substrates by using a nanosecond-pulsed ultraviolet laser. A physical model was established using ANSYS parameter design language finite element software. The influence of laser parameters, such as laser fluence, number of pulses and its duration, and frequency, on morphology-depth, diameter, taper, and temperature distribution-was investigated using three-dimensional confocal laser scanning microscopy. Simulation and experimental results reveal that higher laser fluence and number of pulses produces larger drilling depths and diameters. Laser fluence, pulse duration, frequency, and pulse number of 5.10 J/cm 2 , 1000 μs, 20 kHz, and >9, respectively, can successfully drill through the alumina ceramic substrate. Pulse duration between 3 and 8 ms yielded the smallest hole taper.

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Section: Effect Of Laser Power Output On Ceramic Hole Drillingsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

A theoretical analysis and experimental verification of a laser drilling process for a ceramic substrate

Chen

Hsiao

Wang

et al. 2015

Int J Adv Manuf Technol

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“…Ren et al solved the 2D equation using ANSYS software without considering ablation. 13 Shukla and Lawrence used NX 5.0 to solve the 3D conduction equation, considering phase change. 14 Weidmann et al solved the 2D equation for calculating the temperature distribution and used the Arhenius equation to estimate the speed of ablation and predict the ablated zone.…”

Section: Introductionmentioning

confidence: 99%

3D transient model to predict temperature and ablated areas during laser processing of metallic surfaces

Naghshine

Kiani

2017

AIP Advances

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Laser processing is one of the most popular small-scale patterning methods and has many applications in semiconductor device fabrication and biomedical engineering. Numerical modelling of this process can be used for better understanding of the process, optimization, and predicting the quality of the final product. An accurate 3D model is presented here for short laser pulses that can predict the ablation depth and temperature distribution on any section of the material in a minimal amount of time. In this transient model, variations of thermal properties, plasma shielding, and phase change are considered. Ablation depth was measured using a 3D optical profiler. Calculated depths are in good agreement with measured values on laser treated titanium surfaces. The proposed model can be applied to a wide range of materials and laser systems.

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“…In the existing literature, researchers [1][2][3][4][5] have used a YAG ordinary laser pulse to sharpen material, such as resin, bronze-bond diamond grinding wheels, and resin-bond CBN grinding wheels. A scanning electron microscope was used to observe the microstructure of the grinding wheel surface before and after the laser dressing, and the removal mechanism of various bond materials on the grinding wheel surface using a laser was analyzed.…”

Section: Introductionmentioning

confidence: 99%

The mechanism and application of bronze-bond diamond grinding wheel pulsed laser dressing based on phase explosion

Cai

Chen

Zhang

et al. 2015

Int J Adv Manuf Technol

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This paper presents a theoretical analysis of the surface bond removal mechanism for bronze-bond diamond grinding wheels using a pulsed laser. For the first time, the existence of a phase explosion phenomenon during the process of grinding wheel laser dressing is proposed, and the negative effects of a phase explosion on laser dressing are analyzed. Additionally, a theoretical study on phase explosion is conducted. The mechanism of bronze-bond diamond grinding wheel laser dressing is improved, and theoretical guidance for bronze-bond diamond grinding wheel laser dressing is provided. In the experiment, the processing parameters of the laser during phase explosion are studied, and a grinding test under the corresponding conditions is conducted. A highspeed camera is used to observe phase explosion in the laser dressing process. An ultra-depth 3-D microscope system is used to observe the topography of the bronze-bond diamond grinding wheel after dressing and grinding as well as the bronze wheel surface quality. It is concluded that to avoid phase explosion from occurring in the laser dressing of the bronze-bond grinding wheel, chip space around the bond must exist for the abrasive particle protrusions. The processing parameters of laser dressing under certain condition are optimized, and the desired dressing effect is achieved.

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Comparison of the simulation and experimental of hole characteristics during nanosecond-pulsed laser drilling of thin titanium sheets

Cited by 41 publications

References 22 publications

A theoretical analysis and experimental verification of a laser drilling process for a ceramic substrate

A theoretical analysis and experimental verification of a laser drilling process for a ceramic substrate

3D transient model to predict temperature and ablated areas during laser processing of metallic surfaces

The mechanism and application of bronze-bond diamond grinding wheel pulsed laser dressing based on phase explosion

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