作者: Jean-François Lefebvre , Vincent Ferry , Alain Olivieri , Daniel Blanchard
DOI:
关键词: Laser beams 、 Perforation (oil well) 、 Central layer 、 Engineering drawing 、 Layer (electronics) 、 Laser 、 Composite material 、 Materials science
摘要: The invention relates to a method for the manufacture of pack, particularly intended undergoing preservation treatment, from at least one film (10) comprising two plastic layers, an upper (11) and lower (12), which form outer inner faces said light-metal central layer (13) sandwiched between layers. According invention, prior operations make laser beam is applied solely film, forming face in order produce, virtually entire thickness layer, perforation (14) precut line.