Simulation technology

We simulate high-strain rate processes, using magnetohydrodynamic (MHD) based codes for all Bmax processes.

This simulation shows the pinch of an aluminium-steel tube onto a stainless steel rod in order to predict dynamic angles and velocities needed during a magnetic pulse weld.

The one-turn coil induced a current in the composite tube and a magnetic field in the gap. Together, they generate Lorentz forces that accelerate the tube on its axis. This simulation takes into account the strong coupling between Lorentz forces, fast dynamics and heating due to plastic deformation, Joule effect and impact

This simulation shows the Magnetic Pulse Forming of a thin plate on a die face, using a multi-turn pancake coil. The eddy current flowing on the plate can be seen. It shows how the image of the spiral is reproduced on the plate.

This simulation also takes into account the strong coupling between Lorentz forces, fast dynamics and heating. Due to the velocity of impact onto the die (~60m/s), it allows the plastic deformation in the thickness of the material to occur as well as avoiding most of the springback. This impact even shows the fine markings found on the die on the actual part, much like the details found on a coin.

This simulation shows the Electro-Hydraulic Forming of a small plate. The simulation of the electric arc in water is made using a cylindrical energy deposition.

You can see that the first shockwave forms only 1/3rd of the part, therefore showing us how important it is to take into account the reflected shockwaves in the forming process.

This simulation shows the crimping of an aluminium tube onto a light cover. As in the magnetic pulse weld simulation above, Lorentz forces are calculated to get the displacement of the outer tube. The deformation above and below the cover prevents any relative translation motion of the parts after assembly.

After the tube has been formed, a static force just above the failure is applied onto the outer rod and shows how the crimping reacts while failing.