T1601-3-1 電子ビームによる金属箔材溶接に関する研究([T1601-3]マイクロナノメカトロニクス(3))

概要

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In this study, an electron beam is chosen to micro welding due to its deep penetration and thin width. thin metal foils and wires were welded with electron beam welding to investigate weldability of foil and wire. In welding of the thin foils, the heat effected zone and welding state are strongly depends on the energy density of the irradiation beam. Moreover, size effect such as heat capacity and stiffness are important as thickness of material becomes thin. Overlap welding was carried out for foils of either the same or dissimilar materials. Two overlapped foils were welded easily for the same materials with high thermal conductivity, such as Ti. In the case of dissimilar materials it was possible to weld SUS304 was top and Ti was bottom. The slight gap between overlapped foils affects the thermal conduction significantly. In fact, weldability rises by reducing the gap between foil materials. In addition, two overlapped wires were welded. The effect of the energy density, deformation and the coupling strength on the weldability was investigated.
2010-09-04