Zobrazeno 1 - 10
of 2 758
pro vyhledávání: '"high-power laser"'
Autor:
Jinfeng Deng, Qiao Zhong, Jia Chen, Kaiwen Wei, Xiaoze Yue, Yuguang Liu, Gaohang Li, Xiangyou Li, Xiaoyan Zeng
Publikováno v:
Journal of Materials Research and Technology, Vol 33, Iss , Pp 4831-4843 (2024)
Laser powder bed fusion (LPBF) is the most widely used metal additive manufacturing technology, but it still faces challenges in manufacturing efficiency. To address the issue, high-power LPBF (HP-LPBF) which employs kilowatt-level lasers emerges in
Externí odkaz:
https://doaj.org/article/4975b2b4eab149f4b1560b7f342c66a5
Publikováno v:
Cailiao Baohu, Vol 57, Iss 6, Pp 165-174 (2024)
To investigate the effects of ultra-high power continuous laser cleaning on Q355B steel, an ultra-high power fiber laser was used to clean contaminants such as rust from the surface of Q355B steel. The influence of laser scanning speed and power on t
Externí odkaz:
https://doaj.org/article/777a8c8167344e49a390c150f70b068c
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 6849-6857 (2024)
This study introduces a novel material processing methodology termed High Repetition Frequency Selective Laser Quenching (HRF-SLQ). This technique utilizes high-power lasers with a maximum power of 5 kW in conjunction with a scanning galvanometer, op
Externí odkaz:
https://doaj.org/article/83e10489968c463ba35e51933b9cd41b
Autor:
Deng, Jinfeng, Zhong, Qiao, Chen, Jia, Wei, Kaiwen ⁎, Yue, Xiaoze, Liu, Yuguang, Li, Gaohang, Li, Xiangyou, Zeng, Xiaoyan
Publikováno v:
In Journal of Materials Research and Technology November-December 2024 33:4831-4843
Autor:
Pengfei Sang, Le Zhang, Jian Kang, Mingzhou Li, Shiwei Chen, Peng Yang, Bingheng Sun, Yang Li, Wieslaw Strek, Hao Chen
Publikováno v:
Journal of Advanced Ceramics, Vol 13, Iss 2, Pp 189-197 (2024)
Composite ceramic phosphor (CCP) is a candidate light-conversion material to obtain the high-quality laser lighting source. Phosphors based on the transmissive configuration model could not simultaneously meet the requirements of angular color unifor
Externí odkaz:
https://doaj.org/article/759bb225f25540c0ad7df2e5e456feb2
Publikováno v:
Metals, Vol 14, Iss 11, p 1270 (2024)
Despite the dismantling structures that are submerged to significant depths of water during the decommissioning of nuclear power plants, there is limited research on deep-water laser cutting processes. A self-designed pressurized chamber was used in
Externí odkaz:
https://doaj.org/article/eb84dd1c2c634d1fb5545e7ad91be449
Autor:
Weijun Ling, Hao Xu, Jinfang Yang, Xue Qiu, Taotao He, Purui An, Chao Bi, Shichao Yuan, Man Wang, Xinye Tian, Zhong Dong
Publikováno v:
Photonics, Vol 11, Iss 11, p 997 (2024)
The passively Q-switched mode-locked (QML) operation of a Tm:CaGdAlO4 (Tm:CALGO) bulk laser pumped by a wavelength-tunable Ti:sapphire oscillator using molybdenum disulfide (MoS2) as a saturable absorber was demonstrated. By using an output coupler w
Externí odkaz:
https://doaj.org/article/32c96b9cf7da478b90a272a427910804
Autor:
Takeshi Watari, Yuta Kine, Masahiko Mitsubayashi, Yuki Kabeya, Takashi Kurita, Ryo Yoshimura, Katsuya Hirano, Toshiyuki Kawashima
Publikováno v:
Results in Optics, Vol 15, Iss , Pp 100658- (2024)
The effect of laser peening-induced compressive residual stress on the fatigue strength improvement of A7075 specimens was investigated. Rotary bending fatigue tests and residual stress distribution measurements using the sequential polishing method
Externí odkaz:
https://doaj.org/article/d2b3fac9afe24fd89431a99b008392ce
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 7562-7569 (2023)
The laser penetration welding for medium-thickness plates struggles with unstable molten pool behavior and a limited processing window, often leading to welding defects including spatters, depressions, and especially humps. In this study, forming pro
Externí odkaz:
https://doaj.org/article/6b3c7eceae714722aedd3f02c4f740bc
Autor:
Mario Galletti, Federica Stocchi, Gemma Costa, Alessandro Curcio, Martina Del Giorno, Riccardo Pompili, Luciano Cacciotti, Giampiero Di Pirro, Valentina Dompè, Livio Verra, Fabio Villa, Alessandro Cianchi, Maria Pia Anania, Andrea Ghigo, Arie Zigler, Massimo Ferrario
Publikováno v:
Applied Sciences, Vol 14, Iss 19, p 8619 (2024)
An overview of the 200 TW Frascati Laser for Acceleration and Multidisciplinary Experiments (FLAME) at the SPARC_LAB Test Facility at the National Laboratories of Frascati (LNF-INFN) is presented. The FLAME laser is employed to investigate different
Externí odkaz:
https://doaj.org/article/2d64aba49e9d47ec9fd52fae3333328d