Abstract: An orthopedic implant and method for forming same includes providing a forging die having a punch and a split die. The split die is movable between an opened state, where first and second die portions are spaced apart to allow for removal of a formed orthopedic implant element from within the cavity portions, and a closed state, where the first and second die portions are secured together and the cavity portions cooperate to define a cavity to form the orthopedic implant element therein. The split die is closed and a billet of biocompatible material is provided in the cavity and the punch is moved to deform the billet in the cavity to forge the orthopedic implant element in the cavity while the first and second die portions are substantially fixedly secured together when the split die is in said closed state.

Abstract: A method for making a direct acting tappet in which an oil groove and interior structure defining a weld interface are formed in a cupshaped body by a rolling process, the body is heat treated, a web and hub structure is positioned against the weld interface and the resulting assembly is subjected to a localized, capacitive discharge welding process in the weld interface area. The weld interface is formed to a specific shape to enhance the integrity of the weld. Further, a baffle member can be assembled to the web and hub structure prior to its positioning within the body member.

Abstract: A direct acting hydraulic tappet and a method for making same in which an oil groove and interior structure defining a weld interface are formed in a cup-shaped body by a rolling process, the body is heat treated, a web and hub structure is positioned against the weld interface and the resulting assembly is subjected to a localized, capacitive discharge welding process in the weld interface area. In accordance with the invention, the weld interface is formed to a specific shape to enhance the integrity of the weld. In accordance with a further aspect of the invention, a baffle member can be assembled to the web and hub structure prior to its positioning within the body member.