公开(公告)号：US20180186059A1

公开(公告)日：2018-07-05

申请号：US15740865

申请日：2016-06-28

Applicant: AALTO UNIVERSITY FOUNDATION SR

Inventor： Timo VALKAS ,  Arto SEPÄNMAA ,  Jouni PARTANEN

IPC: B29C51/42 ,  B29C35/08 ,  B29C51/00 ,  B29C51/10 ,  B29C51/46

CPC classification number: B29C51/426 ,  B21D11/20 ,  B29C35/0805 ,  B29C51/008 ,  B29C51/10 ,  B29C51/422 ,  B29C51/46 ,  B29C2035/0822 ,  B29C2035/0838 ,  B29C2791/001 ,  B29C2791/006 ,  B29C2791/007 ,  B29K2101/12 ,  B29L2009/001

Abstract: Method for shaping a film/sheet, particularly for making three-dimensional shapes in it, in which case the outlines of the shape to be formed are warmed/heated and the film/sheet is stretched along the heated outline, in order to cause the part of the film/sheet inside it to deviate from the plane of the surface. The heated outlines are created by, for example, directing a moving beam of thermal radiation onto it. A countersurface is provided to limit the stretching and ensure that rupture does not occur. By repeating the procedure sequentially, a great variety of shapes may be created.