2001 年 7 巻 12 号 p. 21-24
In this report, I did a follow-up survey of transition of welding abilities in welding joint of a reinforcing rod. As a result it became clear that heel crack and toe crack occurred by decrease of route gap and bead as execution amount progressed. Therefore, in the point of the site weld management, it is thought that the defect can correct it by making much of test after weld before weld.