The tracking system combines sutra PID control and ambiguous control to automatic tracking to the outsideweld seam and improve the tracking system accuracy.
该系统采用经典PID控制和模糊控制结合的方法对外焊缝进行自动跟踪，提高了系统精度。
2
The weld defects of incomplete fusion and burn through always occur when the electro-slag welding is used between the outside thin metal plate and the inner clapboard in a box-section member.
箱形截面构件薄壁板与内隔板电渣焊接时，易产生壁板烧穿和焊缝未熔合现象。
3
The results showed by verification that, outside the range of weld joint, the calculation theory proposed by this paper is reliable.