FEM Analysis of Joint Interface Formation in Magnetic Pressure Seam Welding

Abstract:

The magnetic pressure seam welding is one of the candidate methods to join thin sheet smart and multifunctional materials. In this research, to examine the mechanism of magnetic pressure welding from a dynamic viewpoint, numerical simulation of the impact was carried out by using a commercial Euler-Lagrange coupling software MSC.Dytran (MSC.Software) as a first step of the computational studies, where the joint between Fe and Al was employed according to the previous experimental researches. From the serial numerical results, it was found that the increase of temperature at the joint interface was not enough to melt Al or Fe in the range of collision velocity and angle studied in this report. Also, it was revealed that the very large mean stress occurred at the interface which could be considered as the pressure at joint interface and Al moved with high velocity along the interface. Moreover, it was found that there were two patterns of plastic strain distribution near the joint interface depending on the collision velocity and collision angle. Finally, it can be concluded that the plastic strain pattern might be related to the success of magnetic pressure seam welding.

• Periodical: Materials Science Forum (Volumes 638-642)
• Pages: 2166-2171
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.638-642.2166
• Online since: January 2010
• Authors: Hisashi Serizawa, Isao Shibaharar, Sherif Rashed, Hidekazu Murakawa
• Keywords: Collision Angle, Collision Velocity, Dissimilar Material, Finite Element Model (FEM), Magnetic Pressure Seam Welding, Plastic Strain Distribution

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