| 异步轧制力学条件实验及理论分析 |
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| 引用本文： | 王一之,张顺庆,刘宝珩.异步轧制力学条件实验及理论分析[J].北京科技大学学报,1988(1). |
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| 作者姓名： | 王一之 张顺庆 刘宝珩 |
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| 作者单位： | 北京钢铁学院压力加工教研室
(王一之，张顺庆)，北京钢铁学院压力加工教研室(刘宝珩) |
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| 摘 要： | 本文利用密栅云纹法结合三次样条函数求导法,通过压剪实验,测量计算出压剪区内应变速率场及应力场。结果表明,水平应变速率及应力沿试件厚向分布不均;上下表面摩擦力大小不等;压剪区内存在着横贯变形区的大剪应力场。利用实验数据回归出异步条件下接触弧的摩擦系数表达式,并结合Nadai斜面压缩金属楔解建立了新的异步轧制压力模型。新模型与实际吻合较好。
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| 关 键 词： | 压剪 应力场 密栅云纹 摩擦力 |
An Experimental Study and Theoretical Analysis on the Asymmetric Rolling Mechanics Condition |
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| Wang Yizhi Zhang Shunqing Liu Baoheng.An Experimental Study and Theoretical Analysis on the Asymmetric Rolling Mechanics Condition[J].Journal of University of Science and Technology Beijing,1988(1). |
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| Authors: | Wang Yizhi Zhang Shunqing Liu Baoheng |
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| Institution: | Wang Yizhi Zhang Shunqing Liu Baoheng |
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| Abstract: | By means of the dense grid moire and the derivation with the third power spline function, the strain rate fields and the stress fields were obtained through a shearing compression experiment. Using the experiment data, the upper and lower surface friction factor functions s were gained. A new model was developed by Nadai's calculation of stres field in a coverging wedge-shape symmetricl channel and was compared with the Others' calculations. It is shown that the results of the new model agree well with those measured in the test. |
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| Keywords: | shearing compression stress field dense grid moire |
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