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Journal articles on the topic 'Magnetic pulse welding'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Broeckhove, Jan, Len Willemsens, and Koen Faes. "Magnetic pulse welding." International Journal Sustainable Construction & Design 1, no. 1 (November 6, 2010): 21–28. http://dx.doi.org/10.21825/scad.v1i1.20391.

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The contemporary construction industry is evolving with a rapid pace and is pushing technological boundaries. Together with that progress new requirements on joints and joining techniques are imposed. This paper describes our research concerning an advanced joining technique, the Magnetic Pulse Welding process (MPW).The first part of this article briefly describes the MPW process and summarizes the differences with respect to conservative welding techniques. Secondly an analytical model of the process will be investigated on accuracy. This model was developed by the manufacturer of the MPW machine used at the Belgian Welding Institute. Further a description is given of the methods which are used to investigate the experimental joints. After describing the recently performed experiments, finally an overview will be given depicting the work that will be carried out during the rest of this master thesis

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2

Jassim, Ahmad. "Magnetic Pulse Welding Technology." Iraqi Journal for Electrical and Electronic Engineering 7, no. 2 (December 1, 2011): 169–79. http://dx.doi.org/10.37917/ijeee.7.2.14.

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In this paper, the benefits of using Magnetic Pulse machine which is belong to Non-conventional machine instead of conventional machine. Magnetic Pulse Technology is used for joining dissimilar metals, and for forming and cutting metals. It is a non contact technique. Magnetic field is used to generate impact magnetic pressure for welding and forming the work piece by converted the electrical energy to mechanical energy. It is enable us to design previously not possible by welding dissimilar materials and allowing to welds light and stronger materials together. It can be used to weld metallic with non metallic materials to created mechanical lock on ceramics, polymers, rubbers and composites. It is green process; there is no heat, no radiation, no gas, no smoke and sparks, therefore the emissions are negligible.

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3

K. Jassim, Ahmad. "Magnetic Pulse Welding Technology." Iraqi Journal for Electrical And Electronic Engineering 7, no. 2 (December 28, 2011): 169–79. http://dx.doi.org/10.33762/eeej.2011.50347.

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4

Kang, Bong-Yong. "Review of magnetic pulse welding." Journal of Welding and Joining 33, no. 1 (February 28, 2015): 7–13. http://dx.doi.org/10.5781/jwj.2015.33.1.7.

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5

Psyk, Verena, Maik Linnemann, Christian Scheffler, Petr Kurka, and Dirk Landgrebe. "Incremental magnetic pulse welding of dissimilar sheet metals." MATEC Web of Conferences 190 (2018): 02004. http://dx.doi.org/10.1051/matecconf/201819002004.

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Magnetic pulse welding is a solid state welding process using pulsed magnetic fields resulting from a sudden discharge of a capacitor battery through a tool coil in order to cause a high-speed collision of two metallic components, thus producing an impact-welded joint. The joint is formed at room temperature. Consequently, temperature-induced problems are avoided and this technology enables the use of material combinations, which are usually considered to be non-weldable. The extension of the typically linear weld seam can easily reach several hundred millimetres in length, but only a few millimetres in width. If a larger connected area is required, incremental or sequential magnetic pulse welding is a promising alternative. Here, the inductor is moved relative to the joining partners after the first weld sequence and then another welding process is initiated. Thus, the welded area is extended gradually by arranging multiple adjacent weld seams. This paper demonstrates the feasibility of incremental magnetic pulse welding. Furthermore, the influence of important process parameters on the component quality is investigated and evaluated in terms of geometry and micrographic analysis. Moreover, the suitability of different mechanical testing methods is discussed for determining the strength of the individual weld seams.

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6

Raoelison, R. N., N. Buiron, M. Rachik, D. Haye, and G. Franz. "Efficient welding conditions in magnetic pulse welding process." Journal of Manufacturing Processes 14, no. 3 (August 2012): 372–77. http://dx.doi.org/10.1016/j.jmapro.2012.04.001.

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7

Watanabe, Mitsuhiro, and Shinji Kumai. "Welding Interface in Magnetic Pulse Welded Joints." Materials Science Forum 654-656 (June 2010): 755–58. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.755.

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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.

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8

Verstraete, J., W. De W, and K. Faes. "Magnetic pulse welding: lessons to be learned from explosive welding." International Journal Sustainable Construction & Design 2, no. 3 (November 6, 2011): 458–64. http://dx.doi.org/10.21825/scad.v2i3.20545.

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Almost 50 years after magnetic pulse welding was invented, it is finally finding its way to theprivate sector, in particular the transportation and refrigeration industries. To support this evolution, morefundamental and applied knowledge on magnetic pulse welding has to be established. Learning from theexplosive welding process which is very similar and already thoroughly studied and documented, is oneway of achieving this. This paper first discusses why both processes are alike, but not the same. A closerlook at the process parameters and especially those of explosive welding learned, that an increasing flyerplate velocity results in a transformation of the bonding interface from smooth to wavy and an increase inhardness at the surfaces of both metals. Welding windows developed for explosive welding are discussed.The reasons for the limitations set to impact angle and collision velocity in a welding window are brieflyreviewed. This information can give a hand in the optimization of the parameter settings to achieve soundwelds with the magnetic pulse process. To check if a high quality weld is made, several testing methods forboth processes are discussed and compared.

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9

AIZAWA, Tomokatsu, and Keigo OKAGAWA. "Magnetic Pulse Welding for Sheet Metals." Journal of the Japan Society for Technology of Plasticity 52, no. 603 (2011): 424–28. http://dx.doi.org/10.9773/sosei.52.424.

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10

AIZAWA, Tomokatsu. "Magnetic Pulse Welding for Sheet Metals." JOURNAL OF THE JAPAN WELDING SOCIETY 77, no. 8 (2008): 718–21. http://dx.doi.org/10.2207/jjws.77.718.

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11

Kazeev, M. N., V. S. Koidan, V. F. Kozlov, and Yu S. Tolstov. "Magnetic pulse welding in plane geometry." Journal of Applied Mechanics and Technical Physics 54, no. 6 (November 2013): 894–99. http://dx.doi.org/10.1134/s0021894413060047.

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12

Manogaran, Arun Prasath, Prabu Manoharan, Didier Priem, Surendar Marya, and Guillaume Racineux. "Magnetic pulse spot welding of bimetals." Journal of Materials Processing Technology 214, no. 6 (June 2014): 1236–44. http://dx.doi.org/10.1016/j.jmatprotec.2014.01.007.

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13

Uhlmann, Eckart, Lukas Prasol, and Alexander Ziefle. "Potentials of Pulse Magnetic Forming and Joining." Advanced Materials Research 907 (April 2014): 349–64. http://dx.doi.org/10.4028/www.scientific.net/amr.907.349.

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Magnetic pulse production methods such as forming, joining or separating demonstrate innovative high-speed processes. Such processes can be realized using a capacitor and an appropriate tool coil for forming and welding processes. The process strain rates, which can amount to 20,000 s-1, increase the formability of metallic materials significantly. Magnesium and aluminium alloys find a wider application in the automotive industry due to their light weight potential. Through the low density of these materials, the vehicle weight can be reduced considerably. Due to the hexagonal lattice of magnesium alloys industry-relevant deformation in metal forming processes can only be achieved in hot forming processes. The high-speed forming allows a significant increase of deformability of this alloy. The use of dissimilar metals in an assembly requires the development of innovative joining methods. Apart from being used form and force closure the magnetic pulse welding and adhesive bonding material with different partners is possible. Currently at the Institute for Machine Tools and Factory Management (IWF), TU Berlin, various research topics in the field of pulsed magnetic are investigated. The magnetic pulse sheet metal forming of magnesium alloys at room temperature is investigated in a basic research project. A defined demarcation of high-speed forming with respect to the quasi-static deformation is done by means of hardness measurements in the deformation zone. For this purpose a suitable experimental setup with different matrices is constructed. The experimental results of the pulse magnetic deformation are iteratively compared with simulation results. The aim is to develop a new material model which gives a precise prediction about the high-speed process. In the field of magnetic pulse welding, both basic research and industry-related research projects conducted at the IWF. The process requires an adapted tool coil geometry that meets the requirements of the weld geometry. Different coil geometries and weld geometries and possible applications are presented by way of example, the welding quality is quantified by means of different analytical methods. The material microstructure in the weld zone, characterized by light and scanning electron microscopy shows the typical features of a shock welded joint, as also observed in explosive welding.

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14

Psyk, Verena, Maik Linnemann, and Christian Scheffler. "Experimental and numerical analysis of incremental magnetic pulse welding of dissimilar sheet metals." Manufacturing Review 6 (2019): 7. http://dx.doi.org/10.1051/mfreview/2019007.

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Magnetic pulse welding is a solid-state welding process using pulsed magnetic fields resulting from a sudden discharge of a capacitor battery through a tool coil in order to cause a high-speed collision of two metallic components, thus producing an impact-welded joint. The joint is formed at room temperature. Consequently, temperature-induced problems are avoided and this technology enables the use of material combinations, which are usually considered to be non-weldable. The extension of the typically linear weld seam can reach several hundred millimetres in length, but only a few millimetres in width. Incremental or sequential magnetic pulse welding is a promising alternative to obtain larger connected areas. Here, the inductor is moved relative to the joining partners after the weld sequence and then another welding process is initiated. Thus, the welded area is extended by arranging multiple adjacent weld seams. This article demonstrates the feasibility of incremental magnetic pulse welding. Furthermore, the influence of important process parameters on the component quality is investigated and evaluated. The suitability of different mechanical testing methods for determining the strength of the individual weld seams is discussed. The results of numerical simulation are consulted in order to obtain deep understanding of the observed effects.

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15

Strizhakov, Evgeny, and Stanislav Nescoromniy. "Combined processes of environmentally friendly technology for magnetic-pulse welding." E3S Web of Conferences 110 (2019): 01008. http://dx.doi.org/10.1051/e3sconf/201911001008.

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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.

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16

Khalil, Chady, Surendar Marya, and Guillaume Racineux. "Magnetic Pulse Welding and Spot Welding with Improved Coil Efficiency—Application for Dissimilar Welding of Automotive Metal Alloys." Journal of Manufacturing and Materials Processing 4, no. 3 (July 8, 2020): 69. http://dx.doi.org/10.3390/jmmp4030069.

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Lightweight structures in the automotive and transportation industry are increasingly researched. Multiple materials with tailored properties are integrated into structures via a large spectrum of joining techniques. Welding is a viable solution in mass scale production in an automotive sector still dominated by steels, although hybrid structures involving other materials like aluminum are becoming increasingly important. The welding of dissimilar metals is difficult if not impossible, due to their differential thermo mechanical properties along with the formation of intermetallic compounds, particularly when fusion welding is envisioned. Solid-state welding, as with magnetic pulse welding, is of particular interest due to its short processing cycles. However, electromagnetic pulse welding is constrained by the selection of processing parameters, particularly the coil design and its life cycle. This paper investigates two inductor designs, a linear (I) and O shape, for the joining of sheet metals involving aluminum and steels. The O shape inductor is found to be more efficient both with magnetic pulse (MPW) and magnetic pulse spot welding (MPSW) and offers a better life cycle. Both simulation and experimental mechanical tests are presented to support the effect of inductor design on the process performance.

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17

Stankevic, Voitech, Joern Lueg-Althoff, Marlon Hahn, A. Erman Tekkaya, Nerija Zurauskiene, Justas Dilys, Jonas Klimantavicius, Skirmantas Kersulis, Ceslovas Simkevicius, and Saulius Balevicius. "Magnetic Field Measurements during Magnetic Pulse Welding Using CMR-B-Scalar Sensors." Sensors 20, no. 20 (October 20, 2020): 5925. http://dx.doi.org/10.3390/s20205925.

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The possibility of applying CMR-B-scalar sensors made from thin manganite films exhibiting the colossal magnetoresistance effect as a fast-nondestructive method for the evaluation of the quality of the magnetic pulse welding (MPW) process is investigated in this paper. This method based on magnetic field magnitude measurements in the vicinity of the tools and joining parts was tested during the electromagnetic compression and MPW of an aluminum flyer tube with a steel parent. The testing setup used for the investigation allowed the simultaneous measurement of the flyer displacement, its velocity, and the magnitude of the magnetic field close to the flyer. The experimental results and simulations showed that, during the welding of the aluminum tube with the steel parent, the maximum magnetic field in the gap between the field shaper and the flyer is achieved much earlier than the maximum of the current pulse of the coil and that the first half-wave pulse of the magnetic field has two peaks. It was also found that the time instant of the minimum between these peaks depends on the charging energy of the capacitors and is associated with the collision of the flyer with the parent. Together with the first peak maximum and its time-position, this characteristic could be an indication of the welding quality. These results were confirmed by simultaneous measurements of the flyer displacement and velocity, as well as a numerical simulation of the magnetic field dynamics. The relationship between the peculiarities of the magnetic field pulse and the quality of the welding process is discussed. It was demonstrated that the proposed method of magnetic field measurement during magnetic pulse welding in combination with subsequent peel testing could be used as a nondestructive method for the monitoring of the quality of the welding process.

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18

Bellmann, Joerg, Joern Lueg-Althoff, Sebastian Schulze, Soeren Gies, Eckhard Beyer, and A. Erman Tekkaya. "Parameter Identification for Magnetic Pulse Welding Applications." Key Engineering Materials 767 (April 2018): 431–38. http://dx.doi.org/10.4028/www.scientific.net/kem.767.431.

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Magnetic pulse welding (MPW) is a promising technology to join dissimilar metals and to produce multi-material structures, e.g. to fulfill lightweight requirements. During this impact welding process, proper collision conditions between both joining partners are essential for a sound weld formation. Controlling these conditions is difficult due to a huge number of influencing and interacting factors. Many of them are related to the pulse welding setup and the material properties of the moving part, the so-called flyer. In this paper, a new measurement system is applied that takes advantage of the high velocity impact flash. The flash is a side effect of the MPW process and its intensity depends on the impact velocity of the flyer. Thus, the intensity level can be used as a welding criterion. A procedure is described that enables the user to realize a fast parameter development with only a few experiments. The minimum energy level and the optimum distance between the parts to be joined can be identified. This is of importance since a low energy input decreases the thermal and mechanical shock loading on the tool coil and thus increases its lifetime. In a second step, the axial position of the flyer in the tool coil is adjusted to ensure a proper collision angle and a circumferential weld seam.

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19

Manogaran, Arun Prasath, Prabu Manoharan, Didier Priem, Surendar Marya, and Guillaume Racineux. "Magnetic Pulse Spot Welding: An Innovative Approach." Advanced Materials Research 922 (May 2014): 481–86. http://dx.doi.org/10.4028/www.scientific.net/amr.922.481.

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The magnetic pulse welding is a rapid process (takes place within few micro seconds) that joins both homogeneous and heterogeneous materials in the solid state. The process involves applying variable high current on an inductor to generate Lorentz forces on to the conductive primary part (flyer). To realize the weld it is necessary to accelerate the flyer to impact on to the secondary stationary part (base material) at a very high velocity attained over the distance, called air gap, between the parts. It is typically possible to perform welding of tubes and sheets provided there is an optimized air gap between the parts to be welded. As part of our work we have developed an innovative approach (Magnetic Pulse Spot Welding-MPSW) that eliminates the delicate task of maintaining the aforementioned air gap between the plates. The proposed method opens better viable perspectives for heterogeneous assembly of automotive structures or connecting batteries in a quasi-cold state. The developed approach has been validated on the heterogeneous assembly Al/Fe by tensile tests (quasi-static and dynamic) that attested the quality of welds.

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20

Kang, Bong-Yong, Ji-Yeon Shim, Moon-Jin Kang, and In-Ju Kim. "Principle and Application of Magnetic Pulse Welding." Journal of the Korean Welding and Joining Society 26, no. 2 (April 30, 2008): 5–11. http://dx.doi.org/10.5781/kwjs.2008.26.2.005.

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21

Bellmann, Joerg, Joern Lueg-Althoff, Sebastian Schulze, Marlon Hahn, Soeren Gies, Eckhard Beyer, and A. Tekkaya. "Thermal Effects in Dissimilar Magnetic Pulse Welding." Metals 9, no. 3 (March 19, 2019): 348. http://dx.doi.org/10.3390/met9030348.

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Magnetic pulse welding (MPW) is often categorized as a cold welding technology, whereas latest studies evidence melted and rapidly cooled regions within the joining interface. These phenomena already occur at very low impact velocities, when the heat input due to plastic deformation is comparatively low and where jetting in the kind of a distinct material flow is not initiated. As another heat source, this study investigates the cloud of particles (CoP), which is ejected as a result of the high speed impact. MPW experiments with different collision conditions are carried out in vacuum to suppress the interaction with the surrounding air for an improved process monitoring. Long time exposures and flash measurements indicate a higher temperature in the joining gap for smaller collision angles. Furthermore, the CoP becomes a finely dispersed metal vapor because of the higher degree of compression and the increased temperature. These conditions are beneficial for the surface activation of both joining partners. A numerical temperature model based on the theory of liquid state bonding is developed and considers the heating due to the CoP as well as the enthalpy of fusion and crystallization, respectively. The time offset between the heat input and the contact is identified as an important factor for a successful weld formation. Low values are beneficial to ensure high surface temperatures at the time of contact, which corresponds to the experimental results at small collision angles.

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22

Anisimov, A. G., and V. I. Mali. "Magnetic pulse welding of different metal sheets." Materials Today: Proceedings 16 (2019): 151–55. http://dx.doi.org/10.1016/j.matpr.2019.05.240.

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23

Ben-Artzy, A., A. Stern, N. Frage, V. Shribman, and O. Sadot. "Wave formation mechanism in magnetic pulse welding." International Journal of Impact Engineering 37, no. 4 (April 2010): 397–404. http://dx.doi.org/10.1016/j.ijimpeng.2009.07.008.

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24

Polieshchuk, M. A., I. V. Matveiev, V. O. Bovkun, L. I. Adeeva, and A. Yu Tunik. "Application of magnetic-pulse welding to join plates from similar and dissimilar alloys." Paton Welding Journal 2020, no. 8 (August 28, 2020): 41–45. http://dx.doi.org/10.37434/tpwj2020.08.07.

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25

Chen, Yingzi, Zhiyuan Yang, Wenxiong Peng, and Huaiqing Zhang. "Experimental investigation and optimization on field shaper structure parameters in magnetic pulse welding." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 235, no. 13 (May 5, 2021): 2108–17. http://dx.doi.org/10.1177/09544054211014846.

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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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26

Faes, Koen, Rishabh Shotri, and Amitava De. "Probing Magnetic Pulse Welding of Thin-Walled Tubes." Journal of Manufacturing and Materials Processing 4, no. 4 (December 11, 2020): 118. http://dx.doi.org/10.3390/jmmp4040118.

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Magnetic pulse welding is a solid-state joining technology, based on the use of electromagnetic forces to deform and to weld workpieces. Since no external heat sources are used during the magnetic pulse welding process, it offers important advantages for the joining of dissimilar material combinations. Although magnetic pulse welding has emerged as a novel technique to join metallic tubes, the dimensional consistency of the joint assembly due to the strong impact of the flyer tube onto the target tube and the resulting plastic deformation is a major concern. Often, an internal support inside the target tube is considered as a solution to improve the stiffness of the joint assembly. A detailed investigation of magnetic pulse welding of Cu-DHP flyer tubes and 11SMnPb30 steel target tubes is performed, with and without an internal support inside the target tubes, and using a range of experimental conditions. The influence of the key process conditions on the evolution of the joint between the tubes with progress in time has been determined using experimental investigations and numerical modelling. As the process is extremely fast, real-time monitoring of the process conditions and evolution of important responses such as impact velocity and angle, and collision velocity, which determine the formation of a metallic bond, is impossible. Therefore, an integrated approach using a computational model using a finite-element method is developed to predict the progress of the impact of the flyer onto the target, the resulting flyer impact velocity and angle, the collision velocity between the flyer and the target, and the evolution of the welded joint, which are usually impossible to measure using experimental observations.

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27

Kim, Seong-Uk. "Working Coil Technology of Elecro-magnetic Pulse Welding." Journal of the Korean Welding and Joining Society 27, no. 3 (June 30, 2009): 1–3. http://dx.doi.org/10.5781/kwjs.2009.27.3.001.

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28

Kang, Bong-Yong, Ji-Yeon Shim, Ill-Soo Kim, Dong-Hwan Park, In-Ju Kim, and Kwang-Jin Lee. "Development of Working Coil for Magnetic Pulse Welding." Journal of Welding and Joining 27, no. 4 (August 31, 2009): 6–12. http://dx.doi.org/10.5781/kwjs.2009.27.4.006.

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29

Kochan, Anna. "Magnetic pulse welding shows potential for automotive applications." Assembly Automation 20, no. 2 (June 2000): 129–32. http://dx.doi.org/10.1108/01445150010321742.

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30

WATANABE, Mitsuhiro, Toshihiro OBUKI, Luke Yoshinari KAMIOKA, and Shinji KUMAI. "Magnetic pulse welding of aluminum and copper plates." Proceedings of Yamanashi District Conference 2017 (2017): 101. http://dx.doi.org/10.1299/jsmeyamanashi.2017.101.

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31

Ben-Artzy, A., A. Stern, N. Frage, and V. Shribman. "Interface phenomena in aluminium–magnesium magnetic pulse welding." Science and Technology of Welding and Joining 13, no. 4 (May 2008): 402–8. http://dx.doi.org/10.1179/174329308x300136.

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32

Kimchi, M., H. Shao, W. Cheng, and P. Krishnaswamy. "Magnetic Pulse Welding Aluminium Tubes to Steel Bars." Welding in the World 48, no. 3-4 (March 2004): 19–22. http://dx.doi.org/10.1007/bf03266422.

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33

Hahn, Marlon, Christian Weddeling, Geoffrey Taber, Anupam Vivek, Glenn S. Daehn, and A. Erman Tekkaya. "Vaporizing foil actuator welding as a competing technology to magnetic pulse welding." Journal of Materials Processing Technology 230 (April 2016): 8–20. http://dx.doi.org/10.1016/j.jmatprotec.2015.11.010.

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34

Uhlmann, E. Prof, S. Drieux, and R. Jaczkowski. "CO2-Reinigung vor dem Impulsmagnetischen Schweißen*/CO2 cleaning as pretreatment prior to pulse magnetic welding - Combination of cleaning via CO2-snow blasting and joining via pulse magnetic welding." wt Werkstattstechnik online 107, no. 07-08 (2017): 551–57. http://dx.doi.org/10.37544/1436-4980-2017-07-08-75.

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Impulsmagnetisches Schweißen (IMS) gestattet das Fügen elektrisch leitfähiger Werkstücke unterschiedlicher Materialarten. Verunreinigungen auf den Oberflächen der Fügestellen verhindern jedoch oft die stoffschlüssige Verbindung der Fügepartner. Durch die Kombination des IMS mit der Vorbehandlung der zu fügenden Oberflächen durch CO2-Schneestrahlen wurde eine neuartige Methode entwickelt, mit welcher Werkstücke verschiedener Materialarten miteinander und reproduzierbar verschweißt werden können.   Pulse magnetic welding enables the joining of workpieces of different metallic materials. However, surface contaminations impede materially bonded connections of components. An innovative procedure was developed by combining the pulse magnetic welding with the CO2-snow blasting as a pretreatment process for parts to be joined, allowing a reproducible welding of workpieces of various material types.

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35

YU, JIANG, BO WANG, HONGTAO ZHANG, PENG HE, JICAI FENG, B. WANG YU, QICHEN WANG, and PENG CHEN. "Characteristics of Magnetic Field Assisting Plasma GMAW-P." Welding Journal 99, no. 1 (January 1, 2020): 25s—38s. http://dx.doi.org/10.29391/2020.99.003.

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The droplet transfer and voltage-current characteristics of gas metal arc welding (GMAW) in single-pulsed GMAW (single GMAW-P), plasma pulsed GMAW (plasma GMAW-P), and plasma-GMAW-P with a magnetic field were studied using the synchronous acquisition system of high-speed camera and electric signals. The results showed the plasma arc and magnetic field had a significant effect on the droplet transfer process. The indirect arc of the plasma and gas metal arc emerged in the pulse peak phase causing a shunt phenomenon of the GMAW current. The period of the indirect arc was increased under the action of the magnetic field. In hybrid plasma GMAW-P, when the GMAW current did not exceed 140 A, several pulsed one-drop free transfers occurred and the droplet transfer period decreased with the increase in the plasma welding current; when the GMAW current exceeded 140 A, and the plasma welding current was less than 180 A, spray transfer was formed. The droplet transfer transformed into a projected transfer when the plasma welding current increased to 180 A. In plasma-GMAW-P hybrid welding with a magnetic field, the magnetic field had a slight effect on the transfer period. When the GMAW current did not exceed 140 A, the droplet transfer was mainly repelled transfer. The detaching location was on the right side of the wire when the magnetic field current was less than 3 A. When the magnetic field current exceeded 3 A, it was below or on the left side of the wire. When the GMAW current exceeded 140 A and the magnetic field current was less than 5 A, spray transfer was formed, but the droplet transfer mode transformed into a projected transfer with a magnetic field current of 5 A.

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Aizawa, Tomokatsu, and Kazuo Matsuzawa. "Comparison between Simple Seam Welding and Adjacent Parallel Seam Welding by Magnetic Pulse Sheet-Welding Method." Materials Science Forum 910 (January 2018): 19–24. http://dx.doi.org/10.4028/www.scientific.net/msf.910.19.

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This paper describes the comparison between simple seam welding and adjacent parallel seam welding by a magnetic pulse welding method for Al-Al sheets. In the case of the parallel seam welding, the sheets collided at high speed in two parallel along a narrow central part of a one-turn flat coil. The central part had two parallel upper parts. The width of the central part was same as that of the simple seam welding. The increase of the parallel seam-weld zones was more than double in total in comparison with the simple seam-weld zones. Two inside parallel seam-weld zones were connected each other with a small cavity.

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Marya, Manuel, M. J. Rathod, Surendar Marya, Muneharu Kutsuna, and Didier Priem. "Steel-to-Aluminum Joining by Control of Interface Microstructures - Laser-Roll Bonding and Magnetic Pulse Welding -." Materials Science Forum 539-543 (March 2007): 4013–18. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.4013.

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Laser-roll bonding and magnetic pulse welding are two relatively new processes that greatly minimize problems of metallurgical incompatibilities between dissimilar metals and alloys. These two processes, though technologically apart and invented for components with distinct geometries, utilize to various extents high pressures to facilitate rapid and localized interfacial heating and create reliable joints. In this paper, relations between process parameters, microstructures, and properties are discussed for aluminum-to-steel joints made by laser-roll bonding and magnetic pulse welding.

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Mishra, Shobhna, Surender Kumar Sharma, Satendra Kumar, Karuna Sagar, Manraj Meena, and Anurag Shyam. "40 kJ magnetic pulse welding system for expansion welding of aluminium 6061 tube." Journal of Materials Processing Technology 240 (February 2017): 168–75. http://dx.doi.org/10.1016/j.jmatprotec.2016.09.020.

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Kang, Bong-Yong, Ji-Yeon Shim, Ill-Soo Kim, Dong-Hwan Park, and Kwang-Jin Lee. "Application of Magnetic Pulse Welding for Manufacturing Automobile Parts." Journal of the Korean Welding and Joining Society 28, no. 5 (October 31, 2010): 4–9. http://dx.doi.org/10.5781/kwjs.2010.28.5.004.

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OKAGAWA, Keigo, Masaki ISHIBASHI, and Tomokatsu AIZAWA. "Influence of Inductance on Circuit of Magnetic Pulse Welding." Journal of the Japan Society for Technology of Plasticity 53, no. 616 (2012): 462–66. http://dx.doi.org/10.9773/sosei.53.462.

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ISHIBASHI, Masaki, Keigo OKAGAWA, Eiki KABASAWA, and Tomokatsu AIZAWA. "519 Multiple Metal Sheets Junction Using Magnetic Pulse Welding." Proceedings of the Materials and processing conference 2013.21 (2013): _519–1_—_519–2_. http://dx.doi.org/10.1299/jsmemp.2013.21._519-1_.

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Stern, A., V. Shribman, A. Ben-Artzy, and M. Aizenshtein. "Interface Phenomena and Bonding Mechanism in Magnetic Pulse Welding." Journal of Materials Engineering and Performance 23, no. 10 (July 15, 2014): 3449–58. http://dx.doi.org/10.1007/s11665-014-1143-0.

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Hahn, Marlon, Christian Weddeling, Joern Lueg-Althoff, and A. Erman Tekkaya. "Analytical approach for magnetic pulse welding of sheet connections." Journal of Materials Processing Technology 230 (April 2016): 131–42. http://dx.doi.org/10.1016/j.jmatprotec.2015.11.021.

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Lueg-Althoff, J., J. Bellmann, M. Hahn, S. Schulze, S. Gies, A. E. Tekkaya, and E. Beyer. "Joining dissimilar thin-walled tubes by Magnetic Pulse Welding." Journal of Materials Processing Technology 279 (May 2020): 116562. http://dx.doi.org/10.1016/j.jmatprotec.2019.116562.

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AKEDO, Yuki, Kazuo MATSUZAWA, and Tomokatsu AIZAWA. "Magnetic Pulse Welding of Al/Mg sheets using insert." Proceedings of Conference of Kanto Branch 2020 (March 13, 2020): 16A13. http://dx.doi.org/10.1299/jsmekanto.2020.16a13.

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Loosveld, A., W. De Waele, K. Faes, and O. Zaitov. "Leak tightness of magnetic pulse crimped joints." International Journal Sustainable Construction & Design 3, no. 3 (November 6, 2012): 243–50. http://dx.doi.org/10.21825/scad.v3i3.20580.

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The goal of this master thesis is to realize and investigate leak tightness of joints produced by theelectromagnetic pulse (EMP) crimping process. This way of joining metals has gained more attention lately.With EMP welding, leak tight joints can already be achieved. However, the crimping process has somemajor advantages over EMP welding like the fact that more material combinations are possible and itrequires less energy. To realize the leak tightness, two kinds of sealing materials are used: O-rings andadhesives. The workpieces consist of an aluminium or stainless steel tube which is crimped on a solidaluminium mandrel with circumferential grooves in it. First, some preliminary tests are performed todetermine how much the tubes deform in the grooves. This deformation mainly depends on the appliedcharging voltage and the geometry of the groove. With this information, it is possible to estimate the amountof compression an O-ring would undergo when placed inside this groove. On other workpieces, adhesiveswill be applied. Several test procedures can be conducted on the parts to investigate leak tightness. Theresults of a helium test and a pressure burst test on the first test series conducted at the Walloon researchcentre CEWAC already showed that the use of O-rings can be effective.

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Miranda, R. M., B. Tomás, T. G. Santos, and N. Fernandes. "Magnetic pulse welding on the cutting edge of industrial applications." Soldagem & Inspeção 19, no. 1 (March 2014): 69–81. http://dx.doi.org/10.1590/s0104-92242014000100009.

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Magnetic Pulse Welding (MPW) applies the electromagnetic principles postulated in the XIXth century and later demonstrated. In recent years the process has been developed to meet highly demanding market needs involving dissimilar material joining, specially involving difficult-to-weld materials. It is a very high speed joining process that uses an electromagnetic force to accelerate one material against the other, resulting in a solid state weld with no external heat source and no thermal distortions. A high power source, the capacitor, a discharge switch and a coil constitute the minimum equipment necessary for this process. A high intensity current flowing through a coil near an electrically conductive material, locally produce an intense magnetic field that generates eddy currents in the flyer according to Lenz law. The induced electromotive force gives rise to a current whose magnetic field opposes the original change in magnetic flux. The effect of this secondary current moving in the primary magnetic field is the generation of a Lorentz force, which accelerates the flyer at a very high speed. If a piece of material is placed in the trajectory of the flyer, the impact will produce an atomic bond in a solid state weld. This paper discusses the fundamentals of the process in terms of phenomenology and analytical modeling and numerical simulation. Recent industrial applications are presented in terms of materials, joint configurations and real examples as well as advantages and disadvantages of the process.

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Lueg-Althoff, Joern, Amanda Lorenz, Soeren Gies, Christian Weddeling, Gunther Goebel, A. Erman Tekkaya, and Eckhard Beyer. "Magnetic Pulse Welding by Electromagnetic Compression: Determination of the Impact Velocity." Advanced Materials Research 966-967 (June 2014): 489–99. http://dx.doi.org/10.4028/www.scientific.net/amr.966-967.489.

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The implementation of multi-material concepts and the manufacturing of modern lightweight structures, for example in automotive engineering, require appropriate joining technologies. The ability to join dissimilar materials without additional mechanical elements, chemical binders, or adverse influences of heat on the joining partners is key in reaching the desired weight reduction in engineering structures. The Magnetic Pulse Welding (MPW) process meets these demands, making it a viable alternative to conventional thermal welding and mechanical joining processes. The present paper focuses on the analytical determination of the impact velocity as one of the key parameters of MPW processes. On the basis of experimentally recorded data concerning the course of the discharge current and geometrical parameters of the welding setup, the respective velocity is determined. A comparison with measurement data gained by Photon Doppler Velocimetry is performed.

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Sapanathan, Thaneshan, Kang Yang, Dmitrii Chernikov, Rija Nirina Raoelison, Vladimir Gluschenkov, Nicolas Buiron, and Mohamed Rachik. "Thermal Effect during Electromagnetic Pulse Welding Process." Materials Science Forum 879 (November 2016): 1662–67. http://dx.doi.org/10.4028/www.scientific.net/msf.879.1662.

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Magnetic pulse welding (MPW) is a solid state joining process, successfully utilized to join dissimilar metals. This advantage attracted manufacturing industries to fabricate hybrid materials to attain materials with a combination of multiple attributes. The high speed impact during the welding process causes various interfacial phenomena, which have been reported in previous research studies. Combined high speed collision, Joule heating due to eddy current and plastic heat dissipation cause noticeable heating in the workpiece. The heating from the plastic work and collision energy could particularly be significant at the vicinity of the interface compared to other regions of the workpiece. The Joule heating due to eddy current affects the entire workpiece that is prominent before the collision. There is a sharp increase of the temperature at the onset of weld formation due to dissipation of plastic work during the collision. 3D simulations of coupled electromagnetic-mechanical-thermal were carried out to investigate the heating due to the combined Joule heating and plastic dissipation. A case study of MPW, consist of a one turn coil combined with a field shaper, is used to investigate the welding process. The simulations were performed using LS-DYNA®, which has the capability of using both finite and boundary elements to solve the thermo-mechanical problem during electromagnetic forming. The predicted temperature distributions from numerical simulations show expected phenomena of Joule heating and plastic heat dissipation while the analytical approach used to estimate the localized increase in temperature due to supersonic gaseous compression. Minimizing the heating effect by identifying the influencing factors could help to optimize and control the quality of the magnetic pulse welded parts.

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Shim, Ji-Yeon, Ill-Soo Kim, Moon-Jin Kang, In-Ju Kim, Kwang-Jin Lee, and Bong-Yong Kang. "Joining of Aluminum to Steel Pipe by Magnetic Pulse Welding." MATERIALS TRANSACTIONS 52, no. 5 (2011): 999–1002. http://dx.doi.org/10.2320/matertrans.l-mz201131.

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