B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 20/12 (2006.01) B23K 20/24 (2006.01) C21D 9/50 (2006.01)
Patent
CA 2411133
A precipitation hardened structural assembly is provided, including a first structural member and a second structural member positioned adjacent to the first structural member such that the first and second structural members define an interface therebetween. At least one friction stir weld joint joins the first structural member to the second structural member at least partially along the interface. The first and second structural members and the friction stir weld joint are solution heat treated at a first predetermined temperature schedule and precipitation heat treated at a second predetermined temperature schedule and wherein the friction stir weld joint comprises a refined grain structure having grain size of less than about 5 microns:
La présente concerne un ensemble structural durci par précipitation, y compris un premier élément structural et un deuxième élément structural placé à côté du premier élément structural de telle sorte que les premier et deuxième éléments structuraux définissent entre eux une interface. Au moins un joint de soudure par friction-malaxage rejoint le premier élément structural au deuxième élément structural, au moins partiellement le long de l'interface. Les premier et deuxième éléments structuraux et la soudure par friction-malaxage sont traités par mise en solution à une première température prédéterminée et à une deuxième température prédéterminée, ladite soudure par friction-malaxage comportant une structure de grain fin raffinée ayant une taille de grains inférieure à environ 5 microns.
Smart & Biggar
The Boeing Company
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