High-velocity electromagnetic deformation and welding processes (also know as magnetic pulse forming and welding) are highly innovative automatic production techniques.
Magnetic pulse crimping and welding is particularly suitable for joining tubular workpieces.
Magnetic pulse welding shows similarities with explosive welding, however the explosive forces are generated in a safer, controlled manner, by using electromagnetism. In magnetic pulse forming electromagnetic forces are used to deform flat or tubular workpieces according to the shape of a die. Magnetic pulse forming offers several advantages compared to conventional forming techniques, of which the most important is the improved formability of materials and the reduction of wrinkling and spring-back (no reduction of pre-tension), due to the lower internal stress level. In order to increase the applicability of the electromagnetic pulse process, further theoretical and application-oriented research was required.
Demonstration that magnetic pulse crimping is a valuable process for realising strong axial and torque joints (without addition of a filler material). Acquisition of know-how on the magnetic pulse crimping process with and without filler materials. Investigation of appropriate quality control methods, best suited for this new technology (destructive and non-destructive examination).


Investigation of the joint characteristics for potential industrial applications and demonstration workpieces. Investigation of the correlation between the joint characteristics and the process parameters. Technical-economical evaluation of the use of the process for industrial applications, compared to other conventional welding processes.
This project provided objective technical-scientific, as well as practical and economic knowledge in order to make it possible for individual companies to make a technically and economically justified decision on whether or not to implement this technology in their production, and which variant to choose (without filler material or the new variant).
The experimental research was performed by BWI and SLV, both possessing magnetic pulse equipment. The execution of the experimental work was assisted by finite-element modelling of the process, performed by OCAS. The Flanders and German regions have a large number of metal processing companies, and due to the increasing international competition from low wage countries, they are constantly forced to decrease production costs in order to remain competitive. Phosphorylation (better established for β-tubulin) is essential for neuronal differentiation. The workpieces to be connected need to be positioned in the overlap configuration (one tube shifted over the other).


The target group has clearly a need for fast, innovative and more cost-effective production processes. Otherwise they will be obliged to move the production process to countries with lower labour costs, with loss of jobs and knowledge as a result. A high current is discharged in the coil in a very short period of time (10 up to 30 µs). Due to the magnetic field induced in the coil, eddy currents are generated in the outer tubular workpiece. The magnetic field created by the eddy currents is opposing the magnetic field in the coil. The repelling forces between the two magnetic fields cause the acceleration of the outer workpiece in the direction of the inner workpiece. Depending on the parameter settings and the geometrical configuration and dimensions, either a real weld or a crimp joint is obtained.



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