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http://dx.doi.org/10.5781/KWJS.2008.26.6.048

Effects of the Stand-off Distance on the Weld Strength in Magnetic Pulse Welding  

Kim, Sung-Wook (Welding Research Center, RIST)
Chun, Chang-Keun (Welding Research Center, RIST)
Kim, Sook-Hwan (Welding Research Center, RIST)
Publication Information
Journal of Welding and Joining / v.26, no.6, 2008 , pp. 48-53 More about this Journal
Abstract
Although Magnetic Pulse Welding(MPW) is not a recently developed technique, it has gained the attention of the automotive industry. MPW has become an accepted welding process because it enables the joining of similar, and dissimilar materials, with a very short cycle time, without the need for filler metal and gases. In this study, the effect of the stand-off distance on the weld strength has been investigated. The compressive strength of the MPW joints was evaluated using UTM. The interface of weld, IMC composition and morpology were studied by SEM and EDS. It was concluded that the stand-off distance and the voltage are the main parameters influencing the strength of weld. In case of too high stand-off distance, it influenced harmful effect because of the resistance of deformation.
Keywords
Magnetic pulse welding; Stand-off distance; Weld strength; Compressive strength;
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