Joining Dissimilar Materials by Magnetic Pulse Welding

2017 ◽  
Author(s):  
Chady Khalil ◽  
Yannick Amosse ◽  
Guillaume Racineux
Keyword(s):  
Dissimilar Materials ◽  
Magnetic Pulse ◽  
Magnetic Pulse Welding ◽  
Pulse Welding

scholarly journals Influence of Surface Preparation on the Interface of Al-Cu Joints Produced by Magnetic Pulse Welding

Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 997 ◽  
Author(s):  
Omid Emadinia ◽  
Alexandra Martins Ramalho ◽  
Inês Vieira de Oliveira ◽  
Geoffrey A. Taber ◽  
Ana Reis
Keyword(s):  
Tensile Testing ◽  
Dissimilar Materials ◽  
Surface Preparation ◽  
Target Material ◽  
Processing Parameters ◽  
Magnetic Pulse ◽  
Magnetic Pulse Welding ◽  
Surface Conditions ◽  
Comprehensive Evaluations ◽  
Pulse Welding

Magnetic pulse welding can be considered as an advanced joining technique because it does not require any shielding atmosphere and input heat similar to conventional welding techniques. However, it requires comprehensive evaluations for bonding dissimilar materials. In addition to processing parameters, the surface preparation of the components, such as target material, needs to be evaluated. Different surface conditions were tested (machined, sand-blasted, polished, lubricated, chemically attacked, and threaded) using a fixed gap and standoff distance for welding. Microstructural observations and tensile testing revealed that the weld quality is dependent on surface preparation. The formation of waviness microstructure and intermetallic compounds were verified at the interface of some joints. However, these conditions did not guarantee the strength.

scholarly journals Combined processes of environmentally friendly technology for magnetic-pulse welding

2019 ◽  
Vol 110 ◽  
pp. 01008
Author(s):  
Evgeny Strizhakov ◽  
Stanislav Nescoromniy
Keyword(s):  
Dissimilar Materials ◽  
Diffusion Welding ◽  
Combined Processes ◽  
Magnetic Pulse ◽  
Shock Pulse ◽  
Magnetic Pulse Welding ◽  
Melting Temperatures ◽  
The Matrix ◽  
Force Impact ◽  
Pulse Welding

Various techniques for producing fixed joints in solid using electromagnetic fields are considered; basic diagrams, physics, features, and technical capabilities of each method are described. It is shown that thin-walled tubular irregular structures can be obtained under the magnetic-pulse moulding welding that joins the combined actions of induced currents passing through the overlap zone and magnetic pressure for apposing the weldable edges and for shaping in accordance with the matrix configuration. Obtaining joints from dissimilar materials and structures of different thicknesses is implemented due to shock pulse capacitor welding with magnetic pulse drive. The series connection of the weldable parts enables to synchronize the current flow and force impact on the weld junction. Depending on the combination of the weldable products, three techniques of shock pulse capacitor welding with magnetic pulse drive are proposed. To intensify the quality improvement of the female connectors obtained, it is proposed to use the magnetic-pulse welding in vacuum instead of the diffusion welding. Preheating of the complete unit in vacuum allows for the pre-activation of the connectable surfaces. A unique feature of the implemented diagram is a remote action on the telescopic joints of dissimilar alloys heated in vacuum to the pre-melting temperatures through a quartz glass.

Welding Interface in Magnetic Pulse Welded Joints

2010 ◽  
Vol 654-656 ◽  
pp. 755-758 ◽  
Author(s):  
Mitsuhiro Watanabe ◽  
Shinji Kumai
Keyword(s):  
Explosive Welding ◽  
Intermediate Phase ◽  
Dissimilar Materials ◽  
Magnetic Pulse ◽  
Fine Crystal ◽  
Phase Layer ◽  
Magnetic Pulse Welding ◽  
Welding Interface ◽  
Pulse Welding ◽  
The Impact

Magnetic pulse welding was applied to the lap joining of similar (Al/Al) and dissimilar materials (Al/Fe, Al/Cu, and Al/Ni). The magnetic pulse welding is a kind of impact welding represented by explosive welding. The impact energy is induced by electromagnetic force generated by interaction among discharge pulse, induced magnetic flux, and eddy current produced at the plate surface. The welding was achieved within 10 microseconds with a negligible temperature increase. The welding interface exhibited a characteristic wavy morphology, which was similar to that of the explosive welding. In the Al/Fe, Al/Cu, and Al/Ni joints, an intermediate phase layer was produced along the wavy interface. In order to investigate microstructure of the intermediate phase layer, TEM observation of the welding interface was carried out. TEM observation revealed that the intermediate phase layer consisted of amorphous phase and fine crystal grains.

Contemplating Magnetic Pulse Welding of Dissimilar Materials for Automotive Applications

2015 ◽  
Vol 6 (4) ◽  
Author(s):  
S. Muthukumaran ◽  
S. Kudiyarasan ◽  
S. Arungalai Vendan ◽  
A. Senthil Kumar
Keyword(s):  
Dissimilar Materials ◽  
Magnetic Pulse ◽  
Automotive Applications ◽  
Magnetic Pulse Welding ◽  
Pulse Welding

Magnetic pulse welding of aluminum to steel tubes using a field-shaper with multiple seams

2021 ◽  
Vol 65 ◽  
pp. 214-227
Author(s):  
Ziqin Yan ◽  
Ang Xiao ◽  
Xiaohui Cui ◽  
Yuanzheng Guo ◽  
Yuhong Lin ◽  
...  
Keyword(s):  
Magnetic Pulse ◽  
Steel Tubes ◽  
Magnetic Pulse Welding ◽  
Pulse Welding

Experimental investigation and optimization on field shaper structure parameters in magnetic pulse welding

2021 ◽  
pp. 095440542110148
Author(s):  
Yingzi Chen ◽  
Zhiyuan Yang ◽  
Wenxiong Peng ◽  
Huaiqing Zhang
Keyword(s):  
Magnetic Field ◽  
High Speed ◽  
Light Metal ◽  
Magnetic Pulse ◽  
Cross Sectional ◽  
Magnetic Pulse Welding ◽  
Pulse Welding ◽  
Sectional Shape ◽  
Welding System ◽  
The Magnetic Field

Magnetic pulse welding is a high-speed welding technology, which is suitable for welding light metal materials. In the magnetic pulse welding system, the field shaper can increase the service life of the coil and contribute to concentrating the magnetic field in the welding area. Therefore, optimizing the structure of the field shaper can effectively improve the efficiency of the system. This paper analyzed the influence of cross-sectional shape and inner angle of the field shaper on the ability of concentrating magnetic field via COMSOL software. The structural strength of various field shapers was also analyzed in ABAQUS. Simulation results show that the inner edge of the field shaper directly affects the deformation and welding effect of the tube. So, a new shape of field shaper was proposed and the experimental results prove that the new field shaper has better performance than the conventional field shaper.

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