| 测试条件对汽车高强钢扩孔率的影响 |
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| 引用本文： | 赵如意,刘永前,王刚,薛欢,彭文杰.测试条件对汽车高强钢扩孔率的影响[J].钢铁研究,2014(3):33-35. |
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| 作者姓名： | 赵如意 刘永前 王刚 薛欢 彭文杰 |
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| 作者单位： | [1]武汉钢铁（集团）公司研究院,湖北武汉430080 [2]神龙汽车有限公司,湖北武汉430056 |
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| 摘 要： | 钢材的扩孔性能一般可用扩孔试验求出的扩孔率来评价,同种材料,由于试验条件的不同,测得的扩孔率存在显著差别。研究了不同的孔加工方式及毛刺朝向对扩孔率的影响,钻孔方式获得的扩孔率高于冲压孔方式获得的扩孔率,毛刺朝向与凸模运动方向相反时冲压孔获得的扩孔率,大于毛刺朝向与凸模运动方向相同时的冲压孔获得的扩孔率。
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| 关 键 词： | 扩孔率 孔加工方式 毛刺朝向 |
Influence of test conditions on cavity expansion ratio of high strength steel for automobile |
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| ZHAO Ruyi,LIU Yongqian,WANG Gang,XUE Huan,PENG Wenjie.Influence of test conditions on cavity expansion ratio of high strength steel for automobile[J].Research on Iron and Steel,2014(3):33-35. |
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| Authors: | ZHAO Ruyi LIU Yongqian WANG Gang XUE Huan PENG Wenjie |
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| Affiliation: | 1. Research and Development Center of WISCO, Wuhan 430080, China; 2. Dongfeng Peugeot Citroen Automobile Co. , Ltd, Wuhan 430056,China) |
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| Abstract: | The cavity expansion property of steel, could be evaluatea By cavity expanmu-ratio. The cavity expansion ratios of the same material under different test conditionshad significant difference. The influence of different processing methods of cavity andthe burr direction on cavity expansion ratio was studied. The cavity expansion ratioobtained by drilling was higher than that by punching. The cavity expansion ratio whichthe burr direction was opposite to the motion direction of convex die was higher thanthat with the same direction. |
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| Keywords: | cavityexpansion ratio processing methodsof cavity burr direction |
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