Patent ID: 6378349
Filing Date: 2002-04-30
Classification: B21D,B23D,F16B,Y10T

Abstract:
A tubular sheet metal cutting and forming tool apparatus comprising: a rectangular rigid body defining a first pair of opposing side surfaces, and at right angles thereto, a second pair of opposing side surfaces; the rectangular body terminating with a rectangular nose portion extending axially therefrom; the rectangular nose portion providing a pair of spaced apart curved surfaces respectively joining the first pair of opposing side surfaces, and a pair of spaced apart planar surfaces joining the second pair of opposing side surfaces through opposing respective sloped ridges; each of the curved surfaces providing a pair of spaced apart cutting edges for shearing a rectangular tube at side wall intersections thereof so that first opposing severed tube side walls may be rolled on the spaced apart curved surfaces, and so that second opposing severed tube side walls may be forced to jog outwardly on the sloped ridges.