Clutch plate and method of producing same

摘要

A clutch plate in an annular shape, the clutch plate includes a plurality of lubricating grooves on one end face and the other end face of the clutch plate in an axial direction. The lubricating grooves are formed with plastic deformation, in same phase on both the end faces, and extended up to outer peripheral edges and inner peripheral edges of both the end faces. A plurality of intersection points where the lubricating grooves intersect with each other are positioned in other areas than at least one of the outer peripheral edges and the inner peripheral edges of both the end faces.