High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials

Autor:	Youngjin Seo, Dongkyoung Lee, Sukhoon Pyo
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	laser cutting multimode fiber laser cement-based material elliptical hole Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Zdroj:	Materials, Vol 13, Iss 5, p 1113 (2020)
Druh dokumentu:	article
ISSN:	1996-1944 13051113
DOI:	10.3390/ma13051113
Popis:	This experimental research highlights the applicability of laser cutting to cement-based materials using multimode fiber lasers. A 9 kW multimode fiber laser is used, and the experimental variables are the water-to-cement ratio, laser speed, and material compositions such as cement paste, cement mortar and ultra high performance concrete (UHPC). The laser cutting performance on the cement-based materials is investigated in the downward laser direction. The kerf width and penetration depth of the cement-based materials are quantitatively evaluated with the parameters in the surface and cross section of the specimens after the laser cutting. Moreover, the material removal zone of each specimen is compared in terms of the penetration shapes in the cross-sectional view. Based on experimental observations, the interaction mechanism between the laser and cement-based materials is proposed.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/9bc16f963e654b1da5bbd89d3e96ba5e Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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