手溶接技能訓練のための簡易VRシステムと実作業との技能レベル比較による有効性の検討

概要

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Although many welding processes in metal work have been robotized recently, manual welding is still indispensable in custom-made production and high-mix low-volume production. Hence, skilled welders are needed widely in metal work industry. On the other hand, many people have little inducement to be a new welder because of high physical risk and severeness in skill training. Virtual Reality technology may give an effective solution on it and various high-tech VR systems for the training have been proposed so far. However, high tech is not always necessary to build a VR training system, as long as skill to be trained is analyzed and situation is confined. In this paper, the authors have proposed a simple VR training system for steady state electrode manipulation skill in manual arc welding, which adopted neither force display nor mixed reality, and verified its effectiveness. As a result, a good correlation is found between skills in VR welding and in actual welding from experimental tasks, and consequently the proposed system can train novice welders safely.