| 摘要 |
An apparatus and method for manufacturing and authenticating a three-dimensional article (200) including the steps of (1) successively building up the article from a metal powder (116) by an additive manufacturing process by scanning a selected portion of the metal powder (116) with electromagnetic radiation (106), (2) forming an anti-counterfeiting mark (206) in the article during the additive manufacturing process, and (3) determining whether the article includes the anti-counterfeiting mark (206). |
