摩擦撹拌接合を利用した積層造形の一方式

概要

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This paper proposes a new method of laminated manufacturing using the combination of friction stir welding (FSW) and milling. In the method, FSW is used for joining each plate of the layer, and milling is used for shaping cross sections of the layers. 3-dimensional objects with the complex shape are fabricated by repeating these operations. Process parameters of FSW for lap welding were obtained first through elementary experiments. Then examples to examine the feasibility of the proposed method were manufactured with aluminum and plastics. As the machine with limited power was available, spot welding was adopted in the experiments, and many gaps were included in the experimental objects. To realize more advanced results, the machine with controlled travel speed of the tool should be used. Although, even with the relatively low power machine, such materials as low melting point metals and thermoplastics were proved applicable for this method. As FSW uses economical equipment, the method is beneficial for reducing the cost of manufacturing 3-dimensional objects with various materials.
公益社団法人精密工学会の論文
2008-02-05