Patent ID: 6745468
Filing Date: 2004-06-08
Classification: B21D,B63H,Y10T

Abstract:
A method of manufacturing a stainless steel steering wheel rim comprising the steps of:placing a tubular steel circular blank having an oval-shaped cross-section defining an elongated axis into a tool having a circular die; striking the outside surface of the tubular steel blank simultaneously with multiple forming punches spaced equidistantly along the circumference of said circular die, each said forming punch being formed with a compound curved shape to form an indentation axially into one side of said blank; then, indexing the blank circumferentially relative to said forming punches to position said blank for a subsequent formation of a new indentation into said blank; and repeating said striking and indexing steps until said one side is formed with a desired number of indentations having a defined spacing in a predetermined pattern.