Suspension End Plate Weight Reduction via Local Quality Press Forming

The end plate applies local quality by creating press-formed portions with varying plate thicknesses in different regions. The recessed portions have reduced thickness for weight saving, while the protruding portions maintain increased thickness for strength and stiffness. This local variation in thickness allows the plate to be lighter overall while still providing adequate mechanical properties where needed.

The invention transitions from a uniform two-dimensional plate structure to a three-dimensional structure with varying thickness. By forming recessed and protruding portions, the plate gains dimensional complexity that allows simultaneous optimization of weight and mechanical strength, resolving the contradiction between weight reduction and strength maintenance.

The end plate uses local quality by strategically placing recessed portions (reduced thickness) and protruding portions (increased thickness) in specific locations. This allows weight reduction in non-critical areas while maintaining or enhancing strength and stiffness in load-bearing regions, ensuring reliability is not compromised despite overall weight reduction.

The end plate effectively creates a composite structure within a single piece of material by having regions of different thicknesses. This internal composite design allows the plate to exhibit different mechanical properties in different regions, achieving both weight reduction and maintained reliability simultaneously.