Electromagnetic Dent Removal

The EDR does not rely on the magnetism of a material. It uses electromagnetic fields to generate current flow within the material which produce magnetic forces. Therefore, any material that has good electrical conductivity is a candidate for EDR repair.

Picture the dented surface as a mesh and the electromagnetic force fields as a fluid. The first part of the EDR's action is a slow fluid flow that goes through the mesh in the direction of the dent without disturbing it.

While this flow is taking place, the second action is applied: a rapid reversal of the flow. The reversed flow is much greater than the forward flow and is more powerful than the gaps in the mesh can accommodate, causing a net force in the reverse direction on the wire mesh. As the fluid moves, the wire mesh is pulled along with the fluid, removing the dent from the mesh.

Practical Usage:

• The applied voltage, and thus the force, of the EDR is adjustable by the operator at the actuator.
• The operator places the EDR foot against the aircraft, sets the voltage and pulls the trigger.
• A powerful force is applied momentarily against the dent, pulling it outward slightly. Note that a dent of any size will not be corrected in one pull. Normally a series of pulls is used to correct each dent (think of it as a rubber mallet acting from the inside of the skin). The process does not damage paint, leaves no footprint, does not effect avionics, can be used on a fueled aircraft, and leaves no residual magnetic field. The EDR has excellent performance on metal core honeycomb.
• An EDR repair is stronger than a potted repair. Aluminum up to about .09" can be pulled successfully.

Characteristics