High-power CO2laser-MIG hybrid welding for increased gap tolerance. Hybrid weldability of thick steel plates with a square groove

2004 ◽  
Vol 18 (9) ◽  
pp. 692-701 ◽  
Author(s):  
T Hayashi ◽  
S Katayama ◽  
N Abe ◽  
A Omori
Keyword(s):  
High Power ◽  
Steel Plates ◽  
Hybrid Welding ◽  
Thick Steel

Laser forming of thick steel plates with a high power diode laser

2001 ◽  
Author(s):  
Abe Nobuyuki ◽  
Nakagawa Naoki ◽  
Tsukamoto Masahiro ◽  
Nakacho Keiji ◽  
Sogabe Michihiro ◽  
...  
Keyword(s):  
Diode Laser ◽  
High Power ◽  
Steel Plates ◽  
Laser Forming ◽  
Thick Steel ◽  
Power Diode ◽  
High Power Diode Laser

High power disk laser-metal active gas arc hybrid welding of thick high tensile strength steel plates

2016 ◽  
Vol 28 (1) ◽  
pp. 012004 ◽  
Author(s):  
Qinglong Pan ◽  
Masami Mizutani ◽  
Yousuke Kawahito ◽  
Seiji Katayama
Keyword(s):  
Tensile Strength ◽  
High Power ◽  
Steel Plates ◽  
Hybrid Welding ◽  
High Tensile Strength ◽  
Disk Laser

Acoustic and Optical Monitoring of High-Power CO2 Laser Cutting

2007 ◽  
Vol 344 ◽  
pp. 161-168 ◽  
Author(s):  
Johan De Keuster ◽  
Joost R. Duflou ◽  
Jean Pierre Kruth
Keyword(s):  
High Power ◽  
Laser Cutting ◽  
Quality Parameters ◽  
Steel Plates ◽  
Cut Edge ◽  
Edge Roughness ◽  
Cut Quality ◽  
Dross Formation ◽  
Photodiode Signal ◽  
Thick Steel

In this paper, the development of a monitoring system for high-power CO2 laser cutting of thick steel plates (>15 mm) is reported. The aim of this system is to increase the robustness and autonomy of the laser cutting process of thick plates, which is still characterized by more narrow process windows compared to cutting of thin sheets. The applicability for monitoring purposes of two types of sensors is investigated: the acoustic microphone and the photodiode. For both types, correlation between the sensor output and the cut quality is investigated. Both contour cutting and piercing are covered in the study. The full penetration of the piercing can be monitored by both sensors. Furthermore quantitative relations between cut quality parameters and photodiode signal parameters could be determined: the mean level of the photodiode signal correlates well with the drag of the striations and dross formation, whereas the standard deviation proves to correlate well with the occurrence of burning defects and the cut edge roughness.

scholarly journals Simulation and Technology of Hybrid Welding of Thick Steel Parts with High Power Fiber Laser

2011 ◽  
Vol 12 ◽  
pp. 646-655 ◽  
Author(s):  
Gleb Turichin ◽  
Ekaterina Valdaytseva ◽  
Igor Tzibulsky ◽  
Alexander Lopota ◽  
Olga Velichko
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Hybrid Welding ◽  
Thick Steel

Process stability during fiber laser-arc hybrid welding of thick steel plates

2018 ◽  
Vol 102 ◽  
pp. 34-44 ◽  
Author(s):  
Ivan Bunaziv ◽  
Jan Frostevarg ◽  
Odd M. Akselsen ◽  
Alexander F.H. Kaplan
Keyword(s):  
Fiber Laser ◽  
Steel Plates ◽  
Hybrid Welding ◽  
Process Stability ◽  
Thick Steel

Application of Laser-Arc Hybrid Welding to Thick Steel Plates for Bridge Structures

2020 ◽  
pp. 489-496
Author(s):  
Mikihito Hirohata ◽  
Natsumi Sakai ◽  
Kuya Morioka ◽  
Naoyuki Matsumoto ◽  
Kengo Hyoma ◽  
...  
Keyword(s):  
Steel Plates ◽  
Hybrid Welding ◽  
Bridge Structures ◽  
Thick Steel

Welding and forming of thick steel plates with a high power density diode laser

2000 ◽  
Author(s):  
Nobuyuki Abe ◽  
Ritsuko Higashino ◽  
Naoki Nakagawa ◽  
Masahiro Tsukamoto ◽  
Shoji Miyake ◽  
...  
Keyword(s):  
Diode Laser ◽  
Power Density ◽  
High Power ◽  
Steel Plates ◽  
High Power Density ◽  
Thick Steel
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