AE法によるMIM材の疲労損傷評価に関する研究 : 第1報,カオス解析と周波数解析の適用

概要

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Metal injection molding (MIM) is a suitable production technique for the mass production of the products of the complicated shape. The MIM materials produced by the technique have the prop-erties that are excellent in the static mechanical properties such as the tensile strength. However, the studies on the dynamic properties such as the fatigue strength that is important for the design of the reliable structural sintered steels are not enough. Our aim is to evaluate the fatigue damage of MIM materials with AE method. In this study, the detected AE signals during the fatigue testing of the material were analyzed with weight mean frequency distribution, chaos time series analysis, et al. As the result, the possibility that the damage will be evaluated by the parameters that were proposed in this study was shown.
社団法人日本機械学会の論文
2007-08-25