| 摘要 |
The present invention regards a method for manufacture of an article (ART) adapted to be mountable on a sub-structure (54) of an aerial vehicle (23), the article comprises an outer surface (3) serving as an aerodynamic surface during use of the article, the method comprises the steps of providing a blank (52) of sheet metal (1, 1'); providing a porous outer layer (7, 7") of said sheet metal; applying a hydrophobic material (11) into said porous outer layer (7, 7") in such way that the thickness of the porous outer layer (7, 7") entirely being impregnated with the hydrophobic material (11); and finishing the outer surface (3) of the article. The present invention also regards the article achieved by the method and also regards a data medium storing program (P) for causing in a production line an automatic or semi-automatic manufacture of the article. |
