scholarly journals Experimental study of thermal fracturing of Hot Dry Rock irradiated by moving laser beam: Temperature, efficiency and porosity

2020 ◽  
Vol 160 ◽  
pp. 803-816
Author(s):  
Yijiang Wang ◽  
Jinyi Jiang ◽  
Jo Darkwa ◽  
Zeyuan Xu ◽  
Xiaofeng Zheng ◽  
...  
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
Hot Dry Rock ◽  
Temperature Efficiency ◽  
Thermal Fracturing

Experimental study of laser beam transmission and power accounting in a large scale length laser plasma

2000 ◽  
Vol 7 (8) ◽  
pp. 3388-3398 ◽  
Author(s):  
J. D. Moody ◽  
B. J. MacGowan ◽  
R. L. Berger ◽  
K. G. Estabrook ◽  
S. H. Glenzer ◽  
...  
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
Laser Plasma ◽  
Large Scale ◽  
Beam Transmission ◽  
Scale Length

Experimental study on ceramics processing by using high-power CO 2 laser beam

2003 ◽  
Author(s):  
Atsuki Yamamoto ◽  
Hiroyuki Hayashikawa ◽  
Hitoshi Hongu
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
High Power

An experimental study on CO2 laser beam welding of AISI 304SS and Cu dissimilar pipes

2016 ◽  
Vol 9 (4) ◽  
pp. 310
Author(s):  
Sushanta Kumar Sahu ◽  
Bikash Ranjan Moharana ◽  
V.B. Shaibu ◽  
Susanta Kumar Sahoo
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
Laser Beam Welding

An experimental study on CO2 laser beam welding of AISI 304SS and Cu dissimilar pipes

2016 ◽  
Vol 9 (4) ◽  
pp. 310
Author(s):  
V.B. Shaibu ◽  
Sushanta Kumar Sahu ◽  
Bikash Ranjan Moharana ◽  
Susanta Kumar Sahoo
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
Laser Beam Welding

Experimental Study on Laser Beam Sealing for Increased Format-Flexibility of Packaging Machines

2017 ◽  
Vol 871 ◽  
pp. 199-207
Author(s):  
Georg Götz ◽  
Martin Brugger ◽  
Nicholas Amthor ◽  
Christoph Richter ◽  
Gunther Reinhart
Keyword(s):  
Experimental Study ◽  
Energy Efficiency ◽  
Laser Beam ◽  
Laser Beam Welding ◽  
Experimental Studies ◽  
Surface Structures ◽  
Fibre Laser ◽  
Key Factors ◽  
Processing Technologies ◽  
Diode Pumped

Resource and energy efficiency as well as format-flexibility are important key-factors for users and manufacturers of packaging machines. These key-factors could be enhanced together due to a generally positive interconnection. For example, increased format-flexibility reduces the stand-by phases and improves the overall equipment effectiveness (OEE). One way to achieve these objectives is using more flexible processing technologies. Laser beam welding is a widespread technology in many industrial branches. Use of this technology in packaging machines for sealing is unknown and therefore the potential of this technology for increasing format-flexibility as well as resource and energy efficiency is not yet exploited. The focus of this paper is the experimental investigation of laser beam sealing with a 2 μm diode-pumped thulium fibre laser. The results of various experimental studies will be presented. The achievable sealed-seam strengths with different laser beam outputs are demonstrated. Furthermore, reasons for different peeling conditions of these sealing seams are investigated. Different materials and surface structures of the required workpiece carrier are experimentally evaluated.

scholarly journals Resection of the Tooth Apex with Diode Laser

2014 ◽  
Vol 41 (1) ◽  
pp. 45-49
Author(s):  
Tz. Uzunov ◽  
P. Uzunova ◽  
T. Uzunov ◽  
R. Grozdanova
Keyword(s):  
Experimental Study ◽  
Laser Beam ◽  
Diode Laser ◽  
Root Apex ◽  
Laser Resection ◽  
Tooth Apex ◽  
Diode Laser Beam

Summary An “in vitro” experimental study has been carried out on 70 extracted teeth. A laser resection of the root apex has been carried out with diode laser beam with a wavelength of - 810 ± 10 nm. Sequentially a radiation with increasing power has been applied, as follows: 1,3 W, 2W, 3W, 4W, 5W, 6W, 7W, in electro surgery mode. Successful resection of the tooth apex has been performed at: 3W; 4W; 5W; 6W and 7W power. It was established that when laser resected the tooth apex carbonizes.

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