Faced with the need to join aluminum to aluminum and aluminum to steel, automakers have been forced to find alternatives to the tried-and-true spot welding technology they had been
using for decades to join all-steel assemblies. Flow drill screws are one such alternative.
The need to reduce vehicle weight has spawned myriad new technologies for assembling aluminum, high-strength steel and other materials. These new technologies include self-piercing rivets, flow-drilling screws and friction-stir spot welding.
