上海交通大学学报

上海交通大学学报（自然版）

• 金属学与金属工艺 • 上一篇    下一篇

汽车钢板冲压性能的内耗谱表征

于宁1，刘永刚2，张志波1，詹华2，张建2，戢景文1   

  1. (1. 东北大学 理学院材料物理与化学研究所， 沈阳 110004;2. 马鞍山钢铁股份有限公司 技术中心， 安徽 马鞍山 243000)
  • 收稿日期:2009-03-24 修回日期:1900-01-01 出版日期:2010-05-31 发布日期:2010-05-31

Mechanical Spectroscopy Characterization of Forming Property of Automobile Steel Sheets

YU Ning1,LIU Yonggang2,ZHANG Zhibo1,ZHAN Hua2,ZHANG Jian2，JI Jingwen1   

  1. (1. Research Institute of Materials Physics and Chemistry, College of Sciences, Northeastern University, Shenyang 110004, China; 2. Technological Center, Maanshan Iron & Steel Co, Ltd, Maanshan 243000, Anhui, China)
  • Received:2009-03-24 Revised:1900-01-01 Online:2010-05-31 Published:2010-05-31

摘要： 测量了未出现上下屈服点的常规汽车钢板和出现冲压变形滑移带、“橘皮”等不均匀变形钢板在室温至350°C的内耗，并对钢板阻尼峰的本质和力学谱特征进行分析.结果表明，冲压性能不同的钢板内耗谱明显不同.常规钢板的内耗曲线上出现了3个较小的内耗峰；出现冲压变形滑移带的钢板中呈现出2个较高的内耗峰；而出现“橘皮”的钢板中则呈现出4~5个很小的内耗峰.

关键词: 汽车钢板, 冲压性能, 内耗谱表征

Abstract: The internal friction in low carbon aluminium killed DC01 automobile steel sheets, which are of normal without superlower yield point, and of inhomogeneous stamping deformation containing Lüders bands and/or orange skin, were measured from room temperature to 350°C. It is found that for the automobile sheets with different stamping performancies their mechanical spectra have obviously different characterstics. There is a mechanical spectrum with three small peaks for the normal sheet, and there appears a doublepeak spectrum in which the two peaks are all obviously high for the sheet with Lüders bands, and there is a multipeak spectrum having 4 to 5 very small peaks for the sheet with orange skin. The discussion on the nature of the damping peaks and the characteristic of the mechanical spectra was made.

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