Patent ID: 9180602
Filing Date: 2015-11-10
Classification: B21D,B21H,B26D,B26F,Y10T

Abstract:
1. A method of making mesh-like metal mats from metal strip material, the method comprising: notch-rolling the metal strip material to form therein parallel adjacent grooves between metal wires and to make the grooves sufficiently deep that substantially no shear fractures are created while leaving between the grooves unnotched regions that subsequently form mesh crossings offset from one another in the respective adjacent grooves by approximately half a mesh node spacing, subjecting the strip to a flexing process in which webs adjoining bases of the notches and connecting the metal wires to each other undergo repeated bending deformation about their longitudinal axes such that incipient cracks are formed in the webs due to fatigue that results in a complete separation of the metal wires at the webs and no incipient cracks are formed at the mesh crossings, and thereafter spreading the strip with transverse tensile forces acting on its two most widely spaced metal wires such that a transverse stretching deformation of the strip is effected so as to create a mesh-like structure.