| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 829331 | Materials & Design (1980-2015) | 2014 | 10 Pages |
•Aluminum alloy T-joints are successfully fabricated by FSW.•The effect of two kind of corner fillets with different dimensions are analyzed.•The relationship between tensile properties and welding parameters is investigated.•Distribution feature of different defects and formation mechanisms are discussed.•Fracture features of the tensile samples are analyzed.
In this paper, 6013-T4 T-joints were successfully fabricated with different welding parameters by friction stir welding in two different combination modes of skins and stringers. The distribution features and formation mechanisms of defects in T-joints were observed and analyzed. The effect of defects and welding parameters on tensile properties of T-joints was investigated. The result shows that the T-joint without tunnel defect only can be obtained with the traverse speed of 100 mm/min in this experiment, and the welding parameters influence the features and sizes of kissing bond defects. The fracture of T-joints along the shin is attributed to the kissing bond defect and the tunnel defect is the main factor affecting the tensile properties along the stringer.
