Metal-Elastic Interlock Assembly for Shock and Vibration Loads

The patent transitions from a conventional surface-level attachment (2D bonding interface) to a three-dimensional mechanical interlocking structure. The recess in the metal substrate creates a cavity that receives and mechanically locks the elastic material, transforming the bonding mechanism from surface adhesion to volumetric mechanical interlocking. This dimensional change provides superior resistance to shear forces, impact, and vibration compared to traditional bonding methods.

The elastic material is nested within a recess formed in the metal substrate, creating a nested structure where the softer elastic material is partially enclosed by the rigid metal. This nesting configuration allows the metal substrate to mechanically lock the elastic material in place, preventing it from tearing off or detaching under operational stresses such as impact and vibration.

The metal substrate is segmented or modified to include a recess or cavity structure. This segmentation creates distinct functional zones: the recess area that mechanically interlocks the elastic material and the surrounding metal structure that provides structural support. The recess acts as a separate geometric feature that simplifies the bonding process by providing inherent mechanical retention.

The recess structure in the metal substrate serves a dual function: it mechanically retains the elastic material and simplifies the manufacturing process. The geometric configuration of the recess itself provides the bonding mechanism, eliminating the need for complex additional bonding processes or components. The structure is self-retaining, requiring no external fasteners or complex assembly procedures.