階層分析法を用いたアルミニウム溶接熟練者の技能抽出と判断傾向の分析

概要

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The welding quality of aluminum alloy using MIG welding depends on expert welder’s technique which is reflecting their knowledge and experiences. And it is important to extract and share the expert welder’s technique to keep welding quality. However, it is quite difficult for expert welder to initiate their excellent welding technique into younger welder because their judgement process of welding expert during welding is too intuitive to explain. On the other hand, Analytic Hierarchy Process (AHP) has been used to analyze decision-making process for human being such as consumer and spcialist, etc. We adopt this AHP approach and analyze decision making process of expert welders to perform good welding of aluminum alloy. We extracted technical skill from 10 expert welders of aluminum alloy, and showed that their priority regarding welding defect and their tuning tendency of welding parameter using AHP method. This approach would be applicable for obtaining the technical indication of good quality of welds by the feedback of analytical results.