With the equal across area of each bead in one joint,we work out that there is the equal layer height in the later layers from the second layer.

• 在采用等截面积焊道的条件下,推导出从第二层开始以后有近似相等的层高,从而提出了设定多道焊焊接层数以及每层焊道数的规划方法。