| Abstract Scope |
A new, simple solid-state additive manufacturing method has been developed to achieve an extremely high manufacturing efficiency (8000cc/h). Aluminum alloy plates and round bars were used as test specimens. The FSW principle was applied to the upper space of the plates. As a result, a homogeneous , wider layer was formed with improved symmetry compared to that of the friction surfacing. Furthermore, the surface of the layer was extremely smooth. No defects were observed in the cross-section of the resulting layer. An aluminum wall was obtained by stacking multiple layers vertically. In the conventional friction surfacing, many defects were observed between the layers and the wall thickness decreased on the retreating side. In contract, with the new method, no defects were observed between the layers, and layers with a symmetrical shape were formed on the advancing and retreating sides. The new method is expected to be effective for various metal. |