| 摘要 |
The invention relates to a method for producing an oil control ring, wherein a main body, in particular made of cast iron, is provided with at least two webs that form running surface regions by means of machining, in such a way that each web has a conical section and a radially protruding hump-like boss, at least one PVD layer is applied at least to the running surface regions, and the hump-like boss is then removed until a sharp edge arises between the respective running surface region and one of the ring edges, or rather a transition region. |
