| 高速热模锻模具热疲劳裂纹萌生期预测 |
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| 引用本文： | 柳建韬,汪黎.高速热模锻模具热疲劳裂纹萌生期预测[J].锻压技术,1997,22(5):50-52. |
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| 作者姓名： | 柳建韬 汪黎 |
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| 作者单位： | [1]上海交通大学 [2]上海大学 |
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| 基金项目： | 国家自然科学基金!资助项目 (5 96 75 0 49) |
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| 摘 要： | 在考虑高速热模锻凹模的材料性能和工况条件基础上，由Ｃｏｆｆｉｎ－Ｍａｎｓｉｏｎ公式导出了热疲劳裂纹萌生期预测公式，并采用这一公式对高速热模锻凹模进行了热疲劳裂纹萌生期的预测。通过试验发现预测结果与试验结果基本吻合。
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| 关 键 词： | 高速热模锻 模具 热疲劳裂纹 萌生期 |
Prediction of thermal fatigue crack initiation cycles of die for high speed hot die forging |
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| Shanghai Jiaotong University Liu Jiantao Ruan Xueyu,Shanghai University Wang Li Liu Yikuan,Shanghai Automobile Forging Works Tan Zhenhua Lu Wenyuan.Prediction of thermal fatigue crack initiation cycles of die for high speed hot die forging[J].Forging & Stamping Technology,1997,22(5):50-52. |
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| Authors: | Shanghai Jiaotong University Liu Jiantao Ruan Xueyu Shanghai University Wang Li Liu Yikuan Shanghai Automobile Forging Works Tan Zhenhua Lu Wenyuan |
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| Affiliation: | Shanghai Jiaotong University Liu Jiantao Ruan Xueyu Shanghai University Wang Li Liu Yikuan Shanghai Automobile Forging Works Tan Zhenhua Lu Wenyuan |
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| Abstract: | Based on taking material properties and working condition into account of die for high speed hot die forging, this paper derived an equation used for thermal fatigue crack initiation cycles from well known Coffin Mansion equation and predicted thermal fatigul crack initiation cycles of die for high speed hot die forging. The prediction results tallied with experimental results. |
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| Keywords: | High speed hot die forging Die Thermal fatigue crack Initiation cycles |
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