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    A COMPOSITE STRUCTURE WITH SURFACE ROUGHNESS
    6.
    发明公开
    A COMPOSITE STRUCTURE WITH SURFACE ROUGHNESS 审中-公开
    表面有粗糙复合材料结构

    公开(公告)号：EP2996853A1

    公开(公告)日：2016-03-23

    申请号：EP13726010.5

    申请日：2013-05-14

    申请人： UPM-Kymmene Corporation

    发明人： LUUKKO, Kari ,  FORS, Stefan ,  KOSONEN, Harri ,  TURUNEN, Sami ,  SALMINEN, Jere ,  MYLLYTIE, Petri

    IPC分类号： B29C37/00 ,  B29C70/04 ,  B29C59/18

    CPC分类号： B29C37/0053 ,  B29C59/18 ,  B29K2101/12 ,  B29K2105/12 ,  B29K2995/0072

    摘要： The invention relates to providing composite structures with a micro contoured surface layer. There is provided a method to adjust the roughness level of the micro contoured surface layer when manufacturing a composite and products thereof. The micro contoured surface layer may cover all of the surface or at least part of the surface area of the composite product. The roughness level of the micro contoured surface layer may be increased or decreased by controlling the process parameters. In particular, there is provided a method to increase the roughness level of composite material having a primary surface layer with a primary surface roughness by softening said primary surface layer of said composite material by heating and providing a secondary surface layer of said composite material surface with a secondary surface roughness by cooling said softened surface layer. Further, there are provided methods to determine and visualize the level of micro contoured surface layer roughness on a composite product surface.