Patent ID: 7143915
Filing Date: 2006-12-05
Classification: B23D,F16C,Y10T

Abstract:
1. A process for the fracture separation of a part having a cylindrical bore passing therethrough into a first portion and a second portion, the cylindrical bore having a central axis, the part having two opposed sides proximate to the intersection of a predetermined fracture plane passing through the cylindrical bore and the part, the process including the steps of: a) optionally applying at least one pre-stressing force to at least one of the first portion, the second portion and said sides of said part, said at least one pre-stressing force selected from the group compromising: b) applying at least one fatigue force to at least one of the first portion and the second portion, said at least one fatigue force being selected from the group comprising: c) applying at least one dynamic force to one of the first portion and the second portion relative to the other of the first portion and the second portion, said at least one dynamic force being applied in a direction substantially perpendicular to said predetermined fracture plane, said dynamic force being applied to fracture the part into the first portion and the second portion so as to separate the first portion from the second portion substantially along said predetermined plane.