Patent ID: 6702684
Filing Date: 2004-03-09
Classification: B21J,F16B,Y10T

Abstract:
A method of designing and manufacturing a swage type fastener used to adequately secure a plurality of workpieces together in a fastened joint in a plurality of applications having different load requirements, the method comprising:(a) obtaining the clamp and tensile load requirements for the plurality of applications having different load requirements, wherein the applications are selected from the group consisting of shear, shear/tension, tension, shear composite, shear/tension composite and tension composite applications; (b) selecting a pin from a plurality of pin members of different diameters with an elongated pin shank and an enlarged head; (c) forming the pin member with a grooved portion of a plurality of circumferentially extending lock grooves and crests of a common geometry; (d) selecting a tubular collar from a plurality of collars of different materials, the collar being configured to be swaged into the lock grooves; (e) wherein the common lock groove geometry is provided with the longest width required for collars of lower strength for a shear application or greater strength for a tension application; (f) wherein the common crest geometry is provided with the longest width required for collars of greater strength for the tension application; (g) using the formed lock groove and crest geometry with one or more pins of the selected pin diameter to adequately secure a plurality of workpieces together in a fastened joint in the plurality of applications having different load requirements; and (h) wherein the width of the lock grooves in the tension application has a difference in width not greater than ten percent of the width of the lock grooves in the shear application.