| 摘要 |
An imprint (18) that represents a predefined pattern on an article. Article (10) comprises a body (12) made of a first material with a first thermal expansion coefficient (C1). The method comprises a step of incorporating a piece (22) in body (12) made of a second material with a second thermal expansion coefficient (C2), lower than the first coefficient, a step of heating article (10) to a predefined temperature to induce expansion of the materials, and then a step of cooling article (10) to induce shrinkage of the materials, generating a mechanicals stress that deforms article (10). Piece (22) is shaped so that the deformation generated corresponds to predefined pattern (20).
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