Cutting of thick steel plate by 5kW CO laser beam

1989 ◽  
Author(s):  
Susumu Shono ◽  
Osa Matsumoto ◽  
Seiji Beppu ◽  
Shunichi Sato ◽  
Hideaki Saito ◽  
...  
Keyword(s):  
Laser Beam ◽  
Steel Plate ◽  
Co Laser ◽  
Thick Steel

Cutting of steels by high-power CO laser beam

1988 ◽  
Author(s):  
Shunich Sato ◽  
Kunimitsu Takahashi ◽  
Hideaki Saito ◽  
Masato Sugimoto ◽  
Tomoo Fujioka ◽  
...  
Keyword(s):  
Laser Beam ◽  
High Power ◽  
Co Laser

Development of Vertical Welding Technology for Thick Steel Plate using Hot-wire Laser Welding Method

2016 ◽  
Vol 85 (3) ◽  
pp. 282-286
Author(s):  
Motomichi YAMAMOTO ◽  
Kenji SHINOZAKI ◽  
Hiroshi YAJIMA ◽  
Tsutomu FUKUI ◽  
Shin NAKAYAMA ◽  
...  
Keyword(s):  
Laser Welding ◽  
Steel Plate ◽  
Hot Wire ◽  
Welding Method ◽  
Welding Technology ◽  
Thick Steel

scholarly journals Analysis and modeling of the thermal behavior of an improved pellet cookstove

2021 ◽  
Vol 3 (6) ◽  
Author(s):  
Théophile Vitoussia ◽  
Alain Brillard ◽  
Justin Bertsch ◽  
Olivier Allgaier ◽  
Gontrand Leyssens ◽  
...  
Keyword(s):  
Steel Plate ◽  
World Health ◽  
Ring Configuration ◽  
Wood Residues ◽  
The World ◽  
Thick Steel ◽  
Sub Saharan ◽  
Health Organization ◽  
Relative Differences ◽  
Pollutant Gases

AbstractIn Sub-Saharan countries, cooking is usually done at a domestic scale using rudimentary stoves with wood or charcoal as combustibles. To improve the cooking behavior and reduce the deforestation, an improved pellet cookstove was conceptualized with guiding ideas in mind such as simplicity, robustness and ability to burn pellets built with local wood residues under a natural draught. Combustion and water ebullition tests were performed with two configurations of the upper part of the cookstove: thick steel plate or ring, and with standardized EN+ pellets as combustible. The main pollutant gases (CO, CO2 and NOx), together with O2, were continuously measured at different positions of the cookstove during a water ebullition test with the ring configuration. The levels measured above the pot were lower than the thresholds currently proposed by the World Health Organization. Simple and phenomenological thermal models were proposed to simulate the plate, or ring, and water temperatures during the combustion or water ebullition tests and to determine the intrinsic convection coefficients. The maximal relative differences between the experimental and simulated temperatures were computed between 7 and 21%. The stove power was evaluated at 4336 ± 23 W. The cookstove yield for the water ebullition test with the ring configuration was computed equal to 12.3 ± 0.1%, slightly lower than that of cookstoves previously analyzed in the literature.

Cutting of thick steel with fiber-delivered high-power Nd:YAG laser beam

2000 ◽  
Author(s):  
Takehiro Watanabe ◽  
Hiroyuki Kobayashi ◽  
Keiji Suzuki ◽  
Seiji Beppu
Keyword(s):  
Laser Beam ◽  
High Power ◽  
Nd:Yag Laser ◽  
Thick Steel
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