Magnetic Pulse Welding: An Innovative Joining Technology for Similar and Dissimilar Metal Pairs

Abstract

Once it was widely thought to be an exceptional innovative welding solution, the magnetic pulse welding, dragged the related manufacturing industries and particularly automobile companies for its complex assembly solutions in early 2000s. Although this technique has been implemented by some giant manufacturers for various joining tasks, the process still has not been well adopted by industries. However, in recent years, many researchers turned their attention to the potential applications and insight investigations of this process due to the existence of bottlenecks and the prime novelty of this technique. This chapter clearly highlights the process, applications, requirements, interfacial kinematics of the welding, numerical predictions of interfacial behaviours and multi-physics simulations. This chapter recommends that the overall outlook of the process is promising while it requires extra attention in the individual welding cases and its material combinations.

The Technique of Calculating the Parameters of the Process and Selection of Equipment for High-Voltage Condenser Welding

“…Далее самостоятельно выбирают индуктивность разрядного контура оборудования с ИДП L, температуру процесса T 0 , удельную энергию процесса W уд в рекомендуемых диапазонах, которые можно просмотреть при нажатии кнопки «справка». Программа автоматически производит расчет временных соотношений (2). В случае невыполнения равенства временных соотношений необходимо изменить длину или диаметр метиза или выбрать другую толщину листа из имеющегося диапазона.…”

Electromagnetic Pulse Welding of Tubular Products: Influence of Process Parameters and Workpiece Geometry on the Joint Characteristics and Investigation of Suitable Support Systems for the Target Tube

“…Compared to thermal welding processes, electromagnetic pulse welding offers important advantages since pressure instead of heat is employed to realize the metallic bond. Electromagnetic pulse welding is possible for similar and dissimilar material combinations, including those which are difficult or impossible to join using conventional processes [3][4][5].…”

Investigation of the weldability of copper to steel tubes using the electromagnetic welding process

“…Most successful welds show a wavy pattern between the two welded materials, as illustrated in Figure 2. This is believed to be the result of the interference of compressive shock waves caused by the dynamic collision or the jetting phenomenon [1]. The jetting phenomenon is the creation of a jet of material in front of the collision point, which is expulsed due to its high speed.…”

“…The wave formation can become irregular and can give rise to softening or melting of the materials. This could be either caused by the predomination of the jetting phenomenon or according to the Kevin-Helmholtz instability model [1]. Cavities or voids can be formed in the jetting affected zone because of molten fluid, solidification shrinkage or fragmentation.…”

“…Magnetic pulse welding is an innovative and promising solid-state impact process which allows joining of dissimilar metal combinations [1]. Combining dissimilar metals gives the advantage of combining the properties of different materials in one product, such as electrical conductivity, strength, weight, corrosion resistance and many more.…”