| 摘要 |
PURPOSE:To perform welding easily and efficiently in titled welding by consumable electrode type welding, by giving the consumable electrode a tendency of bending instead of changing the torch angle. CONSTITUTION:When welding a fillet weld zone 2 having a narrow groove 1 using shield gas, a wire guide 7 is so made that it can be fixed at a fixed angle theta to the axis of a torch 5 making the contact of a feeding roll 6 a fulcrum. In the case where the guide 7 coincides with the axis of the torch 5, the wire comes out linearly from the chip at the tip of the torch 5, and becomes most suitable for welding of the groove 1. When an angle theta is given to the guide 7 to the axis of the torch 5, the wire 8 is plastic deformed by the roll 6 and sent to the torch 5 with a tendency of bending. Accordingly, when it comes out from the chip at the tip of the torch 5, it makes an angle to the axis of the torch. Bending angle of the wire can be adjusted within a certain limit by adjusting the angle theta. Thus, the weld zone 2 can be welded by tilting the arc without tilting the torch. |
