Damped laminates with improved fastener force retention, a metho

Details Damped laminates with improved fastener force retention, a metho Damped laminates with improved fastener force retention, a metho

1996-07-03

1997-11-25

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428137, 428457, 428 68, 428 71, 428 75, 428220, 428323, 428201, 428 99, 428913, 524031, 267292, 267141, 248636, 248638, 181207, 181208, F16F 1512, B32B 328

Patent

active

056910371

ABSTRACT:
The present invention relates to a vibration damped laminate articles having improved force (torque and/or pressure and/or stress) retention, a method of making one article type and novel tools used to make the one article type. The first laminate comprises at least one layer of damping material between at least two substrate layers. At least one deformation area is present in the laminate wherein the substrate(s) are plastically deformed such that they are closer than non-deformed areas of the substrate and wherein the damping material has less mass than in a non-deformed area of the article; the deformation areas providing the areas of good force retention, for an attachment device attached thereto. The second laminate, which is not deformed, contains an additive of sufficient modulus, diameter and loading, in a vibration damping layer to provide improved force retention.

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