PES is investigating a hydromechanical sheet hydroforming process and if it proves successful, a door with even more substantial dent resistance could result. The consortium expects to release its findings on this phase of the project early in 2001. Dual phase steels have two principal metallurgical phases, or structures. These steels rapidly increase in strength as they are formed into automotive parts. Rephosphorized steels have small additions of phosphorus that provide an economical means to inrease the strength of automotive sheet steels.
Isotropic steels have nearly the same strength and properties in all directions.