It is an autogenous welding type where no filler material is involved. The electrodes are applied to the ends of the pieces to be welded, they are placed together under pressure and an intense electric current is passed through them for an instant. The joining area of the two pieces is heated and melts the metals, performing the welding.
The intensity and time of pressure exerted (amount of heat needed) will depend on the type of metal to be welded.
We have extensive experience in this type of resistance welding, also known as protuberances, as these are the ones that melt to join one metal to another. INMER has been at the forefront of this technique for decades, successfully manufacturing a large number of tie-down assemblies for the main shock absorber brands on the planet. We design and manufacture our own welding tools and we have advanced equipment to control these welds.