Method of making lubrication spray orifice for valve actuating mechanism

摘要

A method of making a lubrication spray orifice (48) for a valve actuating mechanism (10) includes the steps of forming a dome socket (40) for a finger follower (28) of a valve actuating mechanism (10) of an engine, forming a pocket (50) in the dome socket (40) and thinning out material of the pocket (50), and forming an elongated slit opening by expanding the pocket (50) in a single lancing operation to lance a surface of the pocket to create a lubrication spray metering orifice.