Patent ID: 6546613
Filing Date: 2003-04-15
Classification: B21J,Y10T

Abstract:
An anvil for a rivet setting machine configured to drive a rivet into a workpiece within a riveting process, said anvil comprising: a member having a cavity therein configured to accommodate a deformation of the rivet and workpiece during the riveting process, said cavity defined by a main portion configured to support the workpiece during the riveting process and a relief portion proximate said main portion, said relief portion configured to provide an area into which the workpiece and rivet deform during the riveting process, said relief portion having a depth sufficient to provide at least one relief pocket configured to maintain an area which remains substantially unoccupied by the workpiece and rivet throughout the entire riveting process, wherein said relief portion does not substantially hinder the workpiece and rivet during the riveting process, and wherein said relief portion allows the workpiece and rivet to freely deform during the riveting process.