Experimental study on nanosecond-millisecond combined pulse laser drilling of alumina ceramic with different spot sizes

Jia, Xianshi; Chen, Yongqian; Wang, Hailin; Zhu, Guangping

doi:10.1016/j.optlastec.2020.106351

Cited by 30 publications

(8 citation statements)

References 33 publications

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“…Jia et al utilized a novel combined pulse laser composed of an initial nanosecond pulse (1064 nm, 17 ns, 400 W) and a millisecond pulse (1070 nm, 0.1-5 ms, 800 W) for drilling the alumina ceramic. [53] The initial use of a nanosecond pulse laser introduced a keyhole with a depth of 21.5 µm, greatly reducing the diameter below 200 µm and cracks of the final hole obtained by the subsequent treatment of a millisecond pulse laser (Figure 2b). This verified that the synergy of the millisecond laser and other pulsed lasers effectively enhanced the processing quality.…”

Section: Millisecond Lasersmentioning

confidence: 99%

See 1 more Smart Citation

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Zhang

Wang

Yan

et al. 2022

Adv Funct Materials

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Post‐pandemic era poses an imperative demand on progressive sensing devices whose performance largely relies on the morphologies and structures of sensing materials. Despite substantial efforts and advances that have been made in sensing materials with different micro/nanoscale dimensionalities, it is still challenging to couple micro/nano platforms with sensing materials together for the precise and scalable production of high‐performance sensors toward practical application scenarios. Owing to noncontact, precise, and high‐efficiency features, laser micro/nanofabrication offers a promising solution to achieve high‐quality micro/nano sensors with novel functionalities in a relatively short time. Herein, this review begins with a glance over the development of micro/nano‐structured sensors and briefly discusses the importance of laser micro/nanostructuring technology for micro/nano‐engineering of the sensors. Next, representative processing methods are elaborated in detail from a laser‐pulse‐type point of view, with potential applications toward chemical, physical, and biological targets based on different sensing mechanisms summarized. Finally, the perspectives on the opportunities and challenges of laser micro/nanostructuring strategies and materials for micro/nanosensors are presented.

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Section: Millisecond Lasersmentioning

confidence: 99%

“…b) The schematic diagram of the experimental system consisting of a millisecond laser modulated by a 1070 nm CW laser and a 1064 nm nanosecond laser, which drilled the hole with a well quality, and only a few tiny cracks found in the inner wall. Reproduced with permission [53]. Copyright 2020, Elsevier.…”

mentioning

confidence: 99%

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Zhang

Wang

Yan

et al. 2022

Adv Funct Materials

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“…Al 2 O 3 can also be machined using laser beam machining; in this method, laser beam is focused on the workpiece surface, and due to highly concentrated heat source, the ceramic is melted or evaporated. 3,5,6 In this case, due to alumina's low heat transfer coefficient, the intense heat may lead to the generation of cracks or even cause failure. 7 Electrochemical discharge machining (ECDM) has been introduced as one of the best methods for machining of hard and non-conductive materials such as glasses and ceramics; this technique, which is a combination of electrical discharge machining and electrochemical machining, was first introduced by Kura Fuji for glass drilling.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Drilling of Al₂O₃ ceramic using ultrasonic assisted electrochemical discharge machining process

Bagheri

Sayadi

Etefagh

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Alumina is one of the most important ceramic materials in the industry due to its advantageous properties, such as electrical resistivity and high hardness. The machining of this material encounters several difficulties, and it is usually machined using non-traditional machining processes. Among these processes, ultrasonic-assisted electrochemical discharge machining has been widely used for glass machining. However, this machining process is expected to be accompanied by acceptable results in the case of alumina. Therefore, in this study, the effects of process parameters such as ultrasonic vibration amplitude, voltage, pulse-on time, and pulse-off time on material removal rate, depth, overcut, and taper angle have been experimentally studied in the machining of alumina. The results revealed that hole depth increased up to 52% using ultrasonic vibrations with an amplitude of 34 µm.

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“…In the laser welding of metal, for example, suitable pulse duration should be chosen to create the weld penetration deep enough and simultaneously reduce the heat affected zone that adversely effects the metal strength [1]. In the laser drilling, the nanosecond-millisecond combined pulse laser has been widely used for improving the processing efficiency and quality [2][3][4]. Thus, controlling the duration of pulsed lasers is of significance for some applications.…”

Section: Introductionmentioning

confidence: 99%

Duration-controllable mid-infrared pulse from bias-pumped Er:ZBLAN fiber laser

Wang¹,

Qin²,

Luo³

et al. 2021

Laser Phys.

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We experimentally demonstrate the generation of duration-controllable pulses at 2.8 µm based on bias-pump technique for the first time. Bias-pumped by a 976 nm continuous-wave (CW)-pulsed combined laser, duration-controllable pulses are produced from an Er:ZBLAN fiber laser and the duration is entirely determined by the duration of pump pulse. Numerical simulations agree with experimental results well, and further predict that the temporal profile of output pulse from bias-pumped Er:ZBLAN fiber laser can also be identical with that of pump pulse under certain conditions. The pump-controlled mid-infrared pulse may have more applications in various areas due to its manageable temporal characteristics.

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Experimental study on nanosecond-millisecond combined pulse laser drilling of alumina ceramic with different spot sizes

Cited by 30 publications

References 33 publications

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Drilling of Al₂O₃ ceramic using ultrasonic assisted electrochemical discharge machining process

Duration-controllable mid-infrared pulse from bias-pumped Er:ZBLAN fiber laser

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Experimental study on nanosecond-millisecond combined pulse laser drilling of alumina ceramic with different spot sizes

Cited by 30 publications

References 33 publications

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges

Drilling of Al2O3 ceramic using ultrasonic assisted electrochemical discharge machining process

Duration-controllable mid-infrared pulse from bias-pumped Er:ZBLAN fiber laser

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Product

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Drilling of Al₂O₃ ceramic using ultrasonic assisted electrochemical discharge machining process