| 摘要 |
In order to obtain as far as possible a finely graduated transition from the low concentration of the alloying element in workpiece (A) to the higher concentration of this alloying element in workpiece (B), a transition zone (C) is created between the two workpieces (A, B) when the welded joint is being made. The transition zone (C) is created by overlapping welding beads (1, 2, 3) with in each case an increasing concentration of alloy metal. Each of the three overlapping welding beads (1, 2, 3) has a higher concentration of alloying element than the workpiece (A) or the respectively preceding welding bead, the concentration of this element in the last welding bead being lower than that of the workpiece (B). This results in a finely graduated, virtually continuous increase in the concentration of the alloying element. <IMAGE> |
