PISTON RING AND METHOD FOR THE PRODUCTION THEREOF

摘要

The ring has the usual running surface (3) and upper and lower flank surfaces (8) (or end faces). The running surface has a vapor-deposited layer (2). This is formed such that part of the running surface has a removable covering (6), so that after producing the vapor-deposited layer, and removal of the covering, an essentially sharp running edge (9) is formed between running face and flank face(s). - An INDEPENDENT CLAIM is included for the associated method of production.