Mechanism study of thermal fluid flow and weld root hump suppression in full penetration laser welding of Al alloy with alternating magnetic field support

2021 ◽  
Vol 166 ◽  
pp. 120759
Author(s):  
Ruolin Zhang ◽  
Xinhua Tang ◽  
Lidong Xu ◽  
Fenggui Lu ◽  
Haichao Cui
Keyword(s):  
Magnetic Field ◽  
Fluid Flow ◽  
Laser Welding ◽  
Alternating Magnetic Field ◽  
Al Alloy ◽  
Mechanism Study ◽  
Full Penetration ◽  
Weld Root ◽  
Thermal Fluid Flow

Improving Keyhole Stability by External Magnetic Field in Full Penetration Laser Welding

JOM ◽  
2018 ◽  
Vol 70 (7) ◽  
pp. 1261-1266 ◽  
Author(s):  
Min Li ◽  
Jiajun Xu ◽  
Yu Huang ◽  
Youmin Rong
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Laser Welding ◽  
Full Penetration

Magnetic-Field-Induced Partial-to-Full Penetration Evolution and Its Mechanism During Laser Welding

JOM ◽  
2019 ◽  
Vol 71 (7) ◽  
pp. 2296-2302 ◽  
Author(s):  
Jiajun Xu ◽  
Youmin Rong ◽  
Yu Huang
Keyword(s):  
Magnetic Field ◽  
Laser Welding ◽  
Full Penetration

Cylindrical agar gel with fluid flow subjected to an alternating magnetic field during hyperthermia

2014 ◽  
Vol 31 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Mehrdad Javidi ◽  
Morteza Heydari ◽  
Mohammad Mahdi Attar ◽  
Mohammad Haghpanahi ◽  
Alireza Karimi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fluid Flow ◽  
Alternating Magnetic Field ◽  
Agar Gel

Diffusion of an alternating magnetic field into a sharply cornered conductive region

1986 ◽  
Vol 405 (1828) ◽  
pp. 49-63 ◽  
Keyword(s):  
Magnetic Field ◽  
Fluid Flow ◽  
Liquid Metal ◽  
Skin Depth ◽  
Alternating Magnetic Field ◽  
Two Dimensional ◽  
Arbitrary Angle ◽  
Time Period ◽  
Field Lines ◽  
Sharp Corners

The skin-depth solution for the penetration of an alternating magnetic field into a conductor breaks down in the vicinity of sharp corners, yet it is precisely such regions which are important in the study of liquid metal flows. This paper considers the behaviour of an alternating or rotating potential field diffusing into a two-dimensional wedge of arbitrary angle. The problem is reduced to a pair of integral equations over the boundary of the wedge which are solved numerically. The variation of the field lines over a time period is shown and the implications of the locally large Lorentz force for the fluid flow are discussed.

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