Patent ID: 6513219
Filing Date: 2003-02-04
Classification: B21D,F16D,Y10T

Abstract:
A method for producing a ring collar in the shape of a truncated cone for a diaphragm clutch mechanism, said method comprising of the steps of:profiling a rectangular transverse section of a strip (28, 28â€²) to a desired transverse section of said ring collar; helically winding said strip into a substantially tubular helix; cutting a portion of said strip (28, 28â€²) from said helix to a length corresponding to one pitch of said helix, positioning two ends (30A, 30B) of said strip opposite one another, welding said two ends to one another so as to obtain a cylindrical ring (35) having a welding generatrix (38), deburring said ring (35) along said welding generatrix, and forming said ring (35) into a truncated cone.