Magnetic pulse welding (MPW) is often categorized as a cold technology, whereas latest studies evidence melted and rapidly cooled regions within the joining interface. These phenomena already occur at very low impact velocities, when heat input due to plastic deformation comparatively where jetting in kind of distinct material flow not initiated. As another source, this study investigates cloud particles (CoP), which ejected result high speed impact. MPW experiments with different collision...

MPW (magnetic pulse welding) is a solid state joining technology that allows for the generation of strong metallic bonds, even between dissimilar metals.Due to absence external heat, critical intermetallic phases can largely be avoided.In this process, Lorentz forces are utilized rapid acceleration at least one two partners leading controlled high velocity impact them.The measurement collision conditions and their targeted manipulation key factors successful process development.Optical...

The implementation of multi-material concepts, for example, in automotive engineering or aerospace technologies, requires adequate joining techniques. Magnetic Pulse Welding (MPW) process allows both similar and dissimilar materials without additional mechanical elements, chemical binders, adverse influences heat on the partners. In this process, an electro-conductive at (‘flyer’) part is accelerated by Lorentz forces impacts inner (‘parent’) under high velocity pressure, leading to...

Magnetic Pulse Welding (MPW) is a joining technique favorable for the generation of strong atomic bonded areas between different metals, e.g. aluminum and steel. Brittle intermetallic phases can be avoided due to high-speed collision absence external heat. The demand use this in industries like automotive plant engineering rises. However, workpieces used these fields are often coated, order improve corrosion resistance. Since weld quality depends on material’s behavior at zone, surface...

Magnetic pulse welding (MPW) is a promising technology to join dissimilar metals and produce multi-material structures, e.g. fulfill lightweight requirements. During this impact process, proper collision conditions between both joining partners are essential for sound weld formation. Controlling these difficult due huge number of influencing interacting factors. Many them related the setup material properties moving part, so-called flyer. In paper, new measurement system applied that takes...

Abstract Conventional fusion welding of dissimilar metals is often limited due to the different thermo-physical properties joining partners. In consequence, brittle intermetallic phases (IMC) can occur. Utilizing a pressure process like magnetic pulse (MPW) reduces risk IMCs significantly. Furthermore, this has an outstanding short duration in range few microseconds, which makes it predestined for mass production. At same time, advantage challenges observation, inline-quality assurance...

Solid state welding technologies enable dissimilar metal without critical intermetallic phase formation. Magnetic Pulse Welding (MPW) is a promising joining method for hybrid sheet connections in car body production or manufacturing of tube connections. Given suitable MPW process design, the shear testing joints usually leads to failure weaker base material. This finding emphasizes high strength level zone itself. Consequently, transmission higher forces torques, respectively, requires...

Magnetic pulse welding (MPW) is a promising joining technology for the large-scale production of dissimilar metallic joints. Although heat input comparatively low, temporary occurrence high temperatures in gap was found to play an important role during joint formation. It possible that melting or even boiling temperature involved materials will be exceeded, and fusion occur. The purpose this study investigate influence target with different thermal properties on formation weld seam...

Magnetic pulse welding is based on the high velocity impact of two joining partners and a promising technology especially for dissimilar metallic components.Under proper conditions, solid-state bond forms at overlapping interface that typically least as strong weaker base material.However, thermal mechanical loads act tool coil provoke limited lifetime.Furthermore, prevalent magnetic fields obstruct comprehensive process monitoring with conventional means.In this manuscript, approaches...

Abstract Magnetic pulse welding is a promising technology for the joining of dissimilar metals. Since input thermal energy significantly reduced compared to conventional fusion technologies, critical intermetallic phases can largely be avoided. Therefore, proper collision conditions are necessary. Those require careful adjustment energetic and geometric parameters at impact setup. The thickness accelerated partner (flyer) determines necessary successful weld. However, same time, it has an...

Magnetic Pulse Welding (MPW) enables to join metals with very low heat input, compared conventional fusion welding technologies. Thus, dissimilar material combinations are producible without the formation of critical intermetallic phases. The process consists two stages, an electromagnetically driven forming and controlled high-speed collision joining partner. Adjusting time-depended magnetic field distribution along part's surface is key achieve proper conditions generate a sound solid...

Continuously rising demands on automotive and railway structures require significant weight reductions. Therefore lightweight concepts using metallic hybrid constructions, like steel-aluminum structures, are becoming more interesting. The required efficient joining technologies, especially for deformable body not sufficiently applicable up to now. Conventional heat based techniques, welding or brazing, mainly fail because of pronounced intermetallic phase formations in conjunction with...