| 摘要 |
The invention concerns a method for forming by welding along a flat surface an article comprising at least a first metallic member (10) in the form of an aluminium alloy wrought product having elongated grains in a longitudinal direction (L10), with an anisotropy index in a longitudinal oriented surface of at least 4 according to ASTM E112 and/or an anisotropy index in a planar oriented surface of at least 1,5 according to ASTM E112 and at least a second metallic member (11), wherein - the first metallic member (10) is positioned in contact with the second metallic member so that said longitudinal direction (L10) of the elongated grains is positioned substantially within the weld plane, - the article is formed by linear friction welding. The method according to the invention is particularly useful to improve strength and elongation of welded joints obtained by linear friction welding. Structural articles of aircrafts obtained with the method of the invention are advantageous, in particular aircraft structural members. |
