301 パイプ裏面からの溶融池監視による固定管の全周裏波溶接における溶け込み制御(OS 加工・検査のロボット化・知能化)

概要

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This paper deals with sensing of weld pool condition from reverse side and control of penetration in fixed pipe welding. In order to realize full-automatic welding of fixed pipes under high pressure atmosphere, it is important to control the back bead width properly. Accordingly, a method controlling the back bead width from the reverse side is-proposed. As it'is difficult to measure the back bead width directly, it is estimated by analyzing the molten pool shape and the:dimensions. Furthermore, Neural Network is applied so as to estimate the relations among the parameters of the weld pool shape, welding conditions and the penetration of weld. The back bead width is controlled by controlling the welding current estimated from the output of the Neural Network. As the result of welding control experiments, the effectiveness of the proposed system in the penetration control of fixed pipes is verified.
一般社団法人日本機械学会の論文
2000-11-24