Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Reexamination Certificate
2007-07-31
2007-07-31
King, Roy (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
C075S231000, C029S888090, C029S413000
Reexamination Certificate
active
10457785
ABSTRACT:
A method of forming a powder metal fractured bearing component, such as a connecting rod, includes the step of forming a component blank having a bearing aperture for separation of the component blank into a main body and a bearing cap, wherein the component has a hardness in the range of about HRC 22 to about HRC 34. The method also includes the steps of forming a stress riser in the blank where the fracture is to occur, and fracturing the component blank of the connecting rod into a main body and a bearing cap by applying tensile force thereto, in order to form a surface area ratio of >113% on the mating surfaces of the main body and the bearing cap.
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Amano Masaki
Ushio Hideaki
Honda Giken Kogyo Kabushiki Kaisha
Westerman, Hattori, Daniels & Adrian , LLP.
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