Abstract:Application of laser-arc hybrid welding on fabricating large steel structures such as ships and bridges are being extended. Selecting proper welding conditions is important based on joint types and plate thicknesses. There are many factors in hybrid welding conditions, for example, heat inputs of laser and arc, welding speed, gap between two welded plates, angles of laser head and arc torch, laser spot diameter and defocus, flow of shield gas etc. From the viewpoint of mechanics, heat input of each heat source… Show more
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