Patent ID: 6497132
Filing Date: 2002-12-24
Classification: B21D

Abstract:
A pipe flaring die comprised of a pair of mating die segments, each die segment having a front face and a rear face, a pair of shoulders between the front face and the rear face, and a central portion extending from one shoulder to the other shoulder and between the front face and rear face such that when the die segments are mated together shoulder to shoulder, the central portions of the die segments define an opening sized to receive and grip a pipe to be flared. said central portion having:a. an annular beveled portion adjacent said front face; b. an annular gripping surface, the gripping surface having a plurality of projections each projection having a height and a width that enables the projections to bite into an outer surface of a pipe clamped between the mating die segments; c. an annular relief area extending between said gripping surface and said beveled portion, said relief area having a width greater than a combined width of at least three projections said annular relief area being void of projections for biting into the outer surface of the pipe; and d. a radius at an intersection of said beveled portion and said relief area.