Journal ArticleDOI
Laser beam machining—A review
Avanish Kumar Dubey,Vinod Yadava +1 more
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TLDR
The experimental and theoretical studies of LBM show that process performance can be improved considerably by proper selection of laser parameters, material parameters and operating parameters, and the trend for future research is outlined.Abstract:
Laser beam machining (LBM) is one of the most widely used thermal energy based non-contact type advance machining process which can be applied for almost whole range of materials. Laser beam is focussed for melting and vaporizing the unwanted material from the parent material. It is suitable for geometrically complex profile cutting and making miniature holes in sheetmetal. Among various type of lasers used for machining in industries, CO2 and Nd:YAG lasers are most established. In recent years, researchers have explored a number of ways to improve the LBM process performance by analysing the different factors that affect the quality characteristics. The experimental and theoretical studies show that process performance can be improved considerably by proper selection of laser parameters, material parameters and operating parameters. This paper reviews the research work carried out so far in the area of LBM of different materials and shapes. It reports about the experimental and theoretical studies of LBM to improve the process performance. Several modelling and optimization techniques for the determination of optimum laser beam cutting condition have been critically examined. The last part of this paper discusses the LBM developments and outlines the trend for future research.read more
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References
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Proceedings ArticleDOI
Study of ND:YAG pulsed laser milling Al 2 O 3 ceramic in water and air condition
Qi Litao,Wang Yang,Yang Lijun +2 more
TL;DR: In this article, the experiments of pulsed YAG laser milling Al2O3 ceramic under water conditions compared with in air were presented, and the results showed that in water condition, the milling depth and surface quality was better than in air condition.
Journal ArticleDOI
A contact Nd: YAG laser to resect large ciliary body and choroidal tumors
TL;DR: A contact Nd: YAG laser fit with a 0.2-mm diameter sapphire tip was used to excise a large iris ciliary body-choroidal tumor and a large choroidal tumors to minimize intraoperative and postoperative hemorrhage.
Proceedings ArticleDOI
Cutting quality study for QFN packages by Nd:YAG laser
TL;DR: In this article, a laser cutting technology for QFN (quad flat no-lead) packages by Nd:YAG diode pumping solid-state laser system (DPSSL) is reported.
Proceedings ArticleDOI
Laser micro-machining and applications of glasses in optoelectronics
Yong Su Lee,Won Ho Kang +1 more
TL;DR: In this article, the effect of laser-induced crystallization on glass crystallization was compared with that of spontaneous crystallization by heat treatment, and the results showed that the effect was negligible.