| 摘要 |
The present relates to a method of welding in deep joints in narrow-gap (22) geometry. The two metallic components 12, 14 are arranged next to each other such that there is nearly a zero gap between the two components 12, 14. The step of joining two metallic components 12, 14 is performed in two stages, the first stage being a root weld 40 and the second stage being a fill up weld 42. The root weld 40 is completed at the joining of the two discs 12, 14 starting from a middle portion 58 to a point 60 up to which there is still a zero gap between the two discs 12, 14. From the point 60 there exists a non-zero gap between the two discs 12, 14 up to an outer portion 62. The filler gap 50 is filled by fill up welding 42. During fill up welding 42, a filler wire 44 is melted along with the two discs 12, 14 by using the first source of energy 18, and to fill the filler gap 50 along with molten material of the two discs 12, 14. |
