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In the fabrication of steel structures, the method of gas-shielded arc welding is widely utilized with pure CO2 gas. However, the welding with pure CO2 gas is limited with respect to the heat input in order to maintain the fixed mechanical properties of weld metal. A new welding method for increasing weld deposit in every weld bead under keeping the fixed mechanical properties of the weld metal is...
In the fabrication of steel bridge, submerged arc welding (SAW) is widely utilized. In order to increase the efficiency for the production of welds, the increase in electrode such as SAW with multiple wire electrodes is effective. However, heat input also increases with increasing the number of electrode. The new welding method based on SAW method with one electrode, F-SAW, was developed in the present...
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