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J. Cent. South Univ. Technol. (2008) 15: 285-288 DOI: 10.1007/s11771-008-0053-4 3D cavity detection technique and its application based on cavity auto scanning laser system LIU Xi-ling(刘希灵)1... for safe exploitation was pointed out; and the 3D cavity laser detection method and its principle were introduced. A cavity auto scanning laser system was recommended to actualize the cavity 3D detection......
Localization system for mobile robot using scanning laser and ultrasonic measurement LIU Kai(刘凯)1, SUN Zeng-qi(孙增圻)1, AN Bin(安斌)2 (1. Department of Computer Science & Technology, Tsinghua... and position information for the robot. Then, a novel scanning laser and ultrasonic absolute positioning system was developed to eliminate the accumulative error in dead reckoned robot heading......
J. Cent. South Univ. (2020) 27: 1917-1938 DOI: https://doi.org/10.1007/s11771-020-4420-0 Automated extraction of expressway road surface from mobile laser scanning data TRAN Thanh Ha, TAWEEP... GmbH Germany,part of Springer Nature 2020 Abstract: This paper presents a voxel-based region growing method for automatic road surface extraction from mobile laser scanning point clouds......
Solidification process of conventional superalloy by confocal scanning laser microscope MIAO Zhu-jun1, SHAN Ai-dang1, WANG Wei2, LU Jun3, XU Wen-liang3, SONG Hong-wei3 1. School of Materials... of a conventional superalloy, IN718, was investigated by confocal scanning laser microscope (CSLM). The liquid fraction during solidification was obtained as a function of real time and temperature......
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Microstructure Evolution of Intermetallics Produced by Laser Powder Deposition ZHONG Min-lin1,HAN Jian-min2,LIU Wen-jin1,XU Xiang-yang2 (1.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;2.Institute of Materials Science and Engineering, Beijing Jiaotong University, Beijing 100044, China) 摘要:Heat treatment on the laser powder synthesized Ni20Al30Fe intermetallic......
tested by varying the laser scanning rate. The choice of shielding gas was also studied. The clodded coatings were then evaluated from the surface mechanics point of view based on their microhardness. The microstructure of some interesting samples was investigated by optical micrographs (OM). The results showed that under the condition of fixed pulse frequency and pulse width, the laser scanning......
Influence of laser scanning speed on Cu-Zr-Al composite coatings on Mg alloysYa-li Gao1,Meng Jie2,Hai-bo Zhang11. School of Mechanical Engineering, Northeast Dianli University2. School of Mechanical...-Al composite coatings on AZ91HP magnesium alloy by laser cladding. The influence of laser scanning speed on the microstructures and properties of the coatings was discussed. The coatings consist......
J. Cent. South Univ. (2012) 19: 402-407 DOI: 10.1007/s11771-012-1018-1 Estimation of deformed laser heat sources and thermal analysis on laser assisted turning of square member KIM Jae-hyun, KIM...-Verlag Berlin Heidelberg 2012 Abstract: Laser assisted machining (LAM) has difficulties in estimating temperature after applying a LAM process due to its very small heat input area, large energy......
pattern compared with the circular pattern because of wear debris and lubricant getting trapped. Key words: laser surface micro texturing; AISI52100; 3D surface roughness; wear; scanning electron... 20 W power and scanning speeds which can be kept between 1 mm/s to 10 m/s. The laser beam spot diameter was 7 μm, and the pulse frequency was 15 kHz. The texture density for the ellipsoidal pattern......
