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概要

Welding is an essential industrial process in the fabrication of a variety of products and also in maintenance activities. Although most welding processes have already been automated, the high reliability of the manual welding fabrication is still in demand. In this paper the necessity of the in-process monitoring of the performance of manual welders is addressed in order to assess the skill of a manual welder in the workshop environment. The behavior of welders with different skill levels was monitored during manual welding fabrication operations. The analysis confirmed that the parameters such as movement of the welding torch and the viewing point of the welders appropriately reflected the welder's skill level.

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