Micro-Scale Energy Directors For Ultrasonic Welding

CE Poulsen, A Wolff, NK Andersen, K Kistrup… - WO Patent …, 2016 - orbit.dtu.dk
The invention relates to a replication tool (1) for producing a part (4) with a microscale
textured replica surface (5a, 5b, 5c, 5d). The replication tool (1) comprises a tool surface (2a,
2b) defining a general shape of the item (4). The tool surface (2a, 2b) comprises a
microscale structured master surface (3a, 3b, 3c, 3d) having a lateral master pattern and a
vertical master profile. The microscale structured master surface (3a, 3b, 3c, 3d) has been
provided by localized pulsed laser treatment to generate microscale phase explosions. A …
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