scholarly journals An Experimental Investigation on the Cutting Quality of Three Different Rock Specimens Using High Power Multimode Fiber Laser

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2972
Author(s):  
Mang Muan Lian ◽  
Youngjin Seo ◽  
Dongkyoung Lee

The laser cutting of rock has been popular recently because of its advantages over traditional rock cutting methods. Several types of research were performed to replace traditional rock cutting techniques with laser cutting. The purpose of this experiment is to observe cutting quality for intrusive igneous rocks using a high-power multimode fiber laser. The cutting quality, in terms of kerf width and penetration depth, resulted from different scanning speeds and was studied and compared. The specimens used in this study were gabbro, granite, and diorite, which are widely applied in the construction industry because of their high compressive strength and beautiful textures. Energy-dispersive X-ray Spectroscopy (EDX) analyses were conducted to observe the chemical content of three different areas, the melting area, the burnt area, and a non-processed area, for each rock specimen. The study of the compositional changes in each area will also go over the cutting quality of each rock specimen at different scanning speeds. According to the experimental results, the kerf widths of the specimens gradually decrease as the scanning speeds increase. The penetration depths into the specimens sharply decrease as scanning speeds increase. From a study of their compositional changes, it is found that the cutting quality for each rock depends on their silica content. This study summarizes that the cutting quality for a rock specimen greatly depends on the scanning speed of the laser cutting.

2018 ◽  
Vol 103 ◽  
pp. 311-317 ◽  
Author(s):  
Sangwoo Seon ◽  
Jae Sung Shin ◽  
Seong Yong Oh ◽  
Hyunmin Park ◽  
Chin-Man Chung ◽  
...  

2013 ◽  
Vol 40 (11) ◽  
pp. 1103011 ◽  
Author(s):  
陈根余 Chen Genyu ◽  
周宇 Zhou Yu ◽  
张明军 Zhang Mingjun ◽  
陈晓锋 Chen Xiaofeng ◽  
廖生慧 Liao Shenghui

2019 ◽  
Vol 44 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Saša Živanović ◽  
Slobodan Tabaković ◽  
Saša Radjelović

The main objective of the research covered in this paper is to present results for the quality of surfaces thermally cut with a laser beam. The variety of steel materials used as samples on which laser cutting is performed are the following Č.0146 (1.0330), Č.0147 (1.0333), Č.2131 (1.5024), SS Ferbec CR, HARDOX 450 and HARDOX 550. Thermal cutting is carried out with a CNC controlled Fiber laser BAYKAL type BLS–F–1530. The quality of the cut surface is analyzed based on varying the power of the laser beam, changing cutting speed and the type of additional gas (oxygen, air and nitrogen). By visual inspection, measuring the roughness of the cut surface and measuring the width of the intersection, it is determined the influence of the factors like type of the base material, type of gases, the power of thelaser beam and the cutting speed, in accordance with the standards DIN EN ISO 9013-2002 and the JUS C.T3.022.


2017 ◽  
Vol 49 (4) ◽  
pp. 865-872 ◽  
Author(s):  
Ana Beatriz Lopez ◽  
Eurico Assunção ◽  
Luisa Quintino ◽  
Jonathan Blackburn ◽  
Ali Khan

2016 ◽  
Vol 84 ◽  
pp. 134-143 ◽  
Author(s):  
Nguyen Phi Long ◽  
Yukihiro Matsunaga ◽  
Toshihide Hanari ◽  
Tomonori Yamada ◽  
Toshiharu Muramatsu

Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1113 ◽  
Author(s):  
Youngjin Seo ◽  
Dongkyoung Lee ◽  
Sukhoon Pyo

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.


2011 ◽  
Vol 60 (10) ◽  
pp. 104208
Author(s):  
Tao Ru-Mao ◽  
Si Lei ◽  
Ma Yan-Xing ◽  
Zou Yong-Chao ◽  
Zhou Pu

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