Practical Evaluations of the Convenient Identification Method of Metal Material Mechanical Properties Based on Micro to Milli Indentation Test

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  • 簡便性を備えたマイクロ～ミリオーダーの圧子押込み実験に基づく金属材料の力学特性同定手法の実用性評価
  • 簡便性を備えたマイクロ~ミリオーダーの圧子押込み実験に基づく金属材料の力学特性同定手法の実用性評価 : プレス加工への適用による実用性の検証
  • カンベンセイ オ ソナエタ マイクロ~ミリオーダー ノ アツコ オシコミ ジッケン ニ モトズク キンゾク ザイリョウ ノ リキガク トクセイ ドウテイ シュホウ ノ ジツヨウセイ ヒョウカ : プレス カコウ エ ノ テキヨウ ニ ヨル ジツヨウセイ ノ ケンショウ
  • ―プレス加工への適用による実用性の検証―
  • －Applicability Verification by Applying Press Working Process－

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Abstract

For the purpose of a verification of an estimation method that material plasticity parameters are identified by using indentation test and FE analysis, experiment are carried out using the Rockwell testing machine on metal materials. The P-h curve obtained from the experiment and FE analysis, the characteristics of graph has almost the same curve. The material parameters can be identified based on the curve fit using the polynomial function consisting of material parameters. For example, steel metals using in the manufacturing process, the estimation of the work hardening parameters and the elastic properties were almost matched with the results of the tensile tests. Furthermore, the shapes of the actual drawing press and plastic deformation FE analysis using the material parameters of this identification are matched within the allowable range of profile error.

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