文章摘要
杨朝,周涛,冯涛,等.轧制导入角对AZ31镁合金薄板头部翘曲的影响[J].精密成形工程,2016,8(2):43-46.
YANG Zhao,ZHOU Tao,FENG Tao,et al.Effect of Rolling Import Angle on Head Bending of AZ31 Magnesium Alloy Sheet[J].Journal of Netshape Forming Engineering,2016,8(2):43-46.
轧制导入角对AZ31镁合金薄板头部翘曲的影响
Effect of Rolling Import Angle on Head Bending of AZ31 Magnesium Alloy Sheet
投稿时间:2015-12-12  修订日期:2016-03-10
DOI:10.3969/j.issn.1674-6457.2016.02.009
中文关键词: AZ31镁合金薄板  头部翘曲  导入角
英文关键词: AZ31 magnesium alloy sheet  head bending  import angle
基金项目:国家自然科学青年基金 (51301213); 重庆市基础与前沿研究计划 (cstc2014jcyjA50008) 连云港市科技计划 (CG1418, CXY1404)
作者单位
杨朝 重庆理工大学 材料科学与工程学院重庆 400054 
周涛 重庆理工大学 材料科学与工程学院重庆 400054 
冯涛 重庆理工大学 材料科学与工程学院重庆 400054 
胡冬 重庆理工大学 材料科学与工程学院重庆 400054 
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中文摘要:
      目的 研究轧制导入角对镁合金薄板轧制过程中头部翘曲的影响。方法 设计实验导入角分别为-4.8°, -1.4°, 3.1°, 4.3°, 7.2°的5组方案, 并进行轧制实验。结果 当入射角为-1.4°时轧制板材翘曲程度最小, 入射角为7.2°时翘曲程度最大。随着导入角的增加, 轧件非对称咬入, 上下表层与轧辊的接触面积差、 延伸变形量差增大, 附加应力也随之增加, 结果造成轧件翘曲程度逐渐增大。结论 当导入角为-1°~2°时, 轧件的上下表层接触面积、 延伸变形量相当, 产生的附加压力较小, 轧制效果最佳。
英文摘要:
      This work aimed to study the effect of rolling import angle on head warping in the process of magnesium alloy sheet rolling. Five groups of schemes with import angles of 4.8°, 1.4°, 3.1°, 4.3° and 7.2° respectively, were designed in the rolling experiment. When the import angle was 1.4°, the warping of the rolled plate was minimized. When the angle was 7.2°, the warping degree was the largest. The results showed that the head bending degree increased with increasing import angle. During the asymmetric contact, the contacting area difference between the upper and lower surfaces and the roll, as well as the ductility deformation difference increased, and subsequently the additional stress also increased,leading to the gradual increase of bending degree. When the import angle ranged from -1° to 2° ,the contacting areas of the upper and lower surfaces as well as the ductility deformation were similar, and the additional stress was relatively low, resulting in the best rolling result.
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