A study on the critical wall thickness of the inner tube for magnetic pulse welding of tubular Al–Fe parts

Cui, Junjia; Sun, Guangyong; Xu, Junrui; Xu, Zhonghai; Huang, Xiaodong; Li, Guangyao

doi:10.1016/j.jmatprotec.2015.08.008

Cited by 33 publications

(8 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Introductionmentioning

confidence: 99%

“…For the overlapping assembly, the outer part is referred to as the flyer and the inner part is referred to as the target. Since the bulk melting of materials is avoided, MPW is increasingly considered for the joining of dissimilar materials [8]. The joining of tubular parts with MPW involves the use of a thick circular coil, with the assembly of the overlapping flyer and target tubes placed inside the coil [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Probing Magnetic Pulse Welding of Thin-Walled Tubes

Faes

Shotri

2020

JMMP

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Probing Magnetic Pulse Welding of Thin-Walled Tubes

Faes

Shotri

2020

JMMP

View full text Add to dashboard Cite

show abstract

“…In order to avoid deformation of the target tube, several studies have been performed regarding the critical wall thickness of the target tube and the flyer tube [14,16,17]. This critical thickness was defined as the thickness of the tube at which no plastic deformation of the target tube occurred.…”

Section: Introductionmentioning

confidence: 99%

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

Faes

Kwee

Waele

2019

Metals

View full text Add to dashboard Cite

In this experimental research, copper to steel tubular joints were produced by electromagnetic pulse welding. In a first phase, non-supported target tubes were used in order to investigate the influence of the workpiece geometry on the weld formation and joint characteristics. For this purpose, different joint configurations were used, more specific the tube-to-rod and the tube-to-tube configurations, with target workpieces with different diameters and wall thicknesses. Also, some preliminary investigations were performed to examine a support method for the target tubes. In a second phase, suitable support systems for the target tubes were identified. The resulting welds were evaluated in terms of their leak tightness, weld length and deformation of the target tube. It can be concluded that polyurethane (PU), polymethylmethacrylaat (PMMA), polyamide (PA6.6) and steel rods can be considered as valuable internal supports leading to high-quality welds and a sufficient cross-sectional area after welding. Welds with a steel bar support exhibit the highest cross-sectional area after welding, but at the same time the obtained weld quality is lower compared to welds with a PA6.6 or PMMA support. In contrast, welds with a PA6.6 or PU support show the highest weld quality, but also have a lower cross-sectional area after welding compared to steel internal supports.

show abstract

“…The impact completes 2 within hundreds μs along with high-speed (hundreds of m/s) collision and an extremely high strain rate of up to 10 6 -10 7 s −1 at the interface [3]. EMPW has also been known as a solid-state cold welding since it does not use a heat source to weld materials as for conventional welding [4]. However, excessive local shear deformation during high-speed collision can heat the interface while producing a welded joint with a thermally activated diffusion [5].…”

Section: Introductionmentioning

confidence: 99%