Numerical simulation of electromagnetic melt control systems in high power laser beam welding

2013 ◽  
Author(s):  
Marcel Bachmann ◽  
Vjaceslav Avilov ◽  
Andrey Gumenyuk ◽  
Michael Rethmeier
Keyword(s):  
Numerical Simulation ◽  
Laser Beam ◽  
Control Systems ◽  
High Power ◽  
Laser Beam Welding ◽  
High Power Laser ◽  
Power Laser

scholarly journals High Power Laser Beam Welding of Thick-walled Ferromagnetic Steels with Electromagnetic Weld Pool Support

2016 ◽  
Vol 83 ◽  
pp. 362-372 ◽  
Author(s):  
André Fritzsche ◽  
Vjaceslav Avilov ◽  
Andrey Gumenyuk ◽  
Kai Hilgenberg ◽  
Michael Rethmeier
Keyword(s):  
Laser Beam ◽  
Weld Pool ◽  
High Power ◽  
Laser Beam Welding ◽  
High Power Laser ◽  
Power Laser ◽  
Ferromagnetic Steels

scholarly journals Numerical simulation of the effective input of laser energy into a cavity through a hole

1999 ◽  
Vol 17 (4) ◽  
pp. 785-791
Author(s):  
I.G. LEBO ◽  
S.YU. GUS'KOV ◽  
V.V. DEMCHENKO ◽  
V.V. NIKISHIN ◽  
V.F. TISHKIN ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Laser Pulse ◽  
Laser Beam ◽  
High Power ◽  
Laser Energy ◽  
Numerical Calculations ◽  
High Power Laser ◽  
Power Laser ◽  
High Power Laser Pulse

A possibility of input of high-power laser pulse into a cavity through a hole was studied by means of 2D numerical calculations. Such tasks appear in view of investigation of the effective targets with internal input of energy (Bessarab et al. 1992; Basov et al. 1998), “cannon-ball” (Hogan 1989), “Greenhouse” targets (Gus'kov et al. 1995).We have used two Euler codes “NUTCY” and “FAKEL” to model the problems of laser beam input into a cavity through the holes.

scholarly journals The bulging effect and its relevance in high power laser beam welding

2021 ◽  
Vol 1135 (1) ◽  
pp. 012003
Author(s):  
Antoni Artinov ◽  
Xiangmeng Meng ◽  
Nasim Bakir ◽  
Ömer Üstündağ ◽  
Marcel Bachmann ◽  
...  
Keyword(s):  
Laser Beam ◽  
Penetration Depth ◽  
Weld Pool ◽  
High Power ◽  
High Speed ◽  
Laser Beam Welding ◽  
Hot Cracking ◽  
Alloying Elements ◽  
High Power Laser ◽  
Power Laser

Abstract The present work deals with the recently confirmed widening of the weld pool interface, known as a bulging effect, and its relevance in high power laser beam welding. A combined experimental and numerical approach is utilized to study the influence of the bulge on the hot cracking formation and the transport of alloying elements in the molten pool. A technique using a quartz glass, a direct-diode laser illumination, a high-speed camera, and an infrared camera is applied to visualize the weld pool geometry in the longitudinal section. The study examines the relevance of the bulging effect on both, partial and complete penetration, as well as for different sheet thicknesses ranging from 8 mm to 25 mm. The numerical analysis shows that the formation of a bulge region is highly dependent on the penetration depth and occurs more frequently during partial penetration above 6 mm and complete penetration above 8 mm penetration depth, respectively. The location of the bulge correlates strongly with the cracking location. The obtained experimental and numerical results reveal that the bulging effect increases the hot cracking susceptibility and limits the transfer of alloying elements from the top of the weld pool to the weld root.

scholarly journals Weld pool shape observation in high power laser beam welding

Procedia CIRP ◽  
2018 ◽  
Vol 74 ◽  
pp. 683-686 ◽  
Author(s):  
Antoni Artinov ◽  
Nasim Bakir ◽  
Marcel Bachmann ◽  
Andrey Gumenyuk ◽  
Michael Rethmeier
Keyword(s):  
Laser Beam ◽  
Weld Pool ◽  
High Power ◽  
Laser Beam Welding ◽  
High Power Laser ◽  
Power Laser ◽  
Pool Shape ◽  
Weld Pool Shape

Avoidance of end crater imperfections at high-power laser beam welding of closed circumferential welds

2019 ◽  
Vol 64 (2) ◽  
pp. 407-417 ◽  
Author(s):  
Sergej Gook ◽  
Ömer Üstündağ ◽  
Andrey Gumenyuk ◽  
Michael Rethmeier
Keyword(s):  
Laser Beam ◽  
High Power ◽  
Laser Beam Welding ◽  
High Power Laser ◽  
Power Laser ◽  
Circumferential Welds

Numerical simulation of thermal effect on metal irradiated by high-power laser beam in different airflow

2010 ◽  
Vol 22 (11) ◽  
pp. 2531-2534 ◽  
Author(s):  
郑艳丽 Zheng Yanli ◽  
杜太焦 Du Taijiao ◽  
束庆邦 Shu Qingbang ◽  
王建国 Wang Jianguo
Keyword(s):  
Numerical Simulation ◽  
Laser Beam ◽  
Thermal Effect ◽  
High Power ◽  
High Power Laser ◽  
Power Laser

scholarly journals On the search for the origin of the bulge effect in high power laser beam welding

2019 ◽  
Vol 31 (2) ◽  
pp. 022413 ◽  
Author(s):  
Antoni Artinov ◽  
Nasim Bakir ◽  
Marcel Bachmann ◽  
Andrey Gumenyuk ◽  
Suck-Joo Na ◽  
...  
Keyword(s):  
Laser Beam ◽  
High Power ◽  
Laser Beam Welding ◽  
High Power Laser ◽  
Power Laser
Sign in / Sign up

Export Citation Format

Share Document