Patent ID: 8453305

Claim:
A method of processing a metallic gear comprising providing a metallic gear, directing a first peening media at the metallic gear to expose a plurality of surfaces on the metallic gear to the first peening media to enhance the strength and wear properties of the of the teeth roots of the gear, directing a second peening media at the metallic gear to expose a plurality of surfaces on the metallic gear to the second peening media to enhance the toughness of the surface of the gear, providing a container, placing a fine finishing medium in the container, after directing the first peening media at the metallic gear and after directing the second peening media at the metallic gear, placing the gear with the fine finishing medium in the container, coupling vibrations to the container to vibrate the fine finishing medium with the gear to smooth the exposed gear surfaces, removing the gear from the container, washing the gear, and rinsing the gear with rust inhibitor.