MATERIAL WITH VARIABLE HEIGHT BARBS

摘要

The present invention is a differentially textured material made from a workpiece made of a ductile material with a substantially flat face on which are raised rows of integral and generally pointed barbs. Each barb has a height above the substantially flat face of the ductile material from which the barbs are gouged out. The heights of the barbs vary substantially. The material may be steel and in the form of a sheet. The differentially textured material is particularly well suited for manufacturing disc brake backing plates where the barbs are used to bond the backing plate to friction material. The present invention also includes methods for making such differentially textured material.

主权项

1. A disc brake backing plate comprising a ductile material with a face and a plurality of raised barbs extending integrally from the face, each barb having a height above the face, wherein a first plurality of the barbs are at least 10% higher than a second plurality of the barbs, wherein the first plurality of the barbs includes at least 10% of the barbs and the second plurality of the barbs includes at least 10% of the barbs, and wherein the barbs of the second plurality of barbs are not deformed and are hook-shaped and pointed.