| 摘要 |
<p>The method involves providing an embossing die with two opposite embossing molds, which define a space for accommodating a metal plate, where a surface of the mold has a structured embossing region (9) with alternative depressions (10) and raisings (11). The depressions are designed as groove-shaped depressions such that the depressions lie on virtually straight lines, which run parallely over the entire elongation of the structured embossing region. The depressions are produced by grinding e.g. profile grinding, milling e.g. roll milling, laser radiation and ultrasonic discharging.</p> |
