| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding method capable of welding a spiral blade plate on a shaft without depending on manpower as much as possible; and to provide a device therefor.SOLUTION: In a welding method, a spiral blade plate 3 is temporarily welded on the peripheral surface of a shaft 2, and a welder 12 having an abutting part 27 abutting on the surface of the blade plate is set movably in parallel with the axis of the shaft, and the shaft is rotated. Hereby, the blade plate presses the abutting part to move the welder, and simultaneously the shaft and the blade plate are welded together by the welder.SELECTED DRAWING: Figure 1 |
