US Patent 9216523 Process for shaping or forming articles

The present application discloses a method of shaping a working material (12) into an article, consisting of two primary stages: (a) in the absence of added heat, consolidating and shaping the working material into a pre-form shape using a dynamic hydroforming process that employs a rigid, male-shaped tool (32) and a non-rigid, female-shaped tool (23, 24, 26); and (b) in the presence of added heat, further consolidating and shaping the working material into the final shape using at least one additional rigid forming tool (50).