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| 薄壁钢管内胀推弯成形数值模拟及实验研究 | |
| 引用本文： | 刘劲松,张兴华,刘海,张士宏.薄壁钢管内胀推弯成形数值模拟及实验研究[J].锻压技术,2012,37(2):63-67. |
| 作者姓名： | 刘劲松 张兴华 刘海 张士宏 |
| 作者单位： | 1. 沈阳理工大学 材料科学与工程学院,辽宁沈阳110159;中国科学院金属研究所,辽宁沈阳110016 2. 沈阳理工大学 材料科学与工程学院,辽宁沈阳,110159 3. 中国科学院金属研究所,辽宁沈阳,110016 |
| 摘 要： | 针对薄壁管材弯曲成形过程中内壁起皱、外壁拉裂等成形缺陷,采用内胀推弯工艺成形规格为Φ30mm×0.3mm的1Cr18Ni9Ti薄壁管材。有限元模拟了不同内胀压力下,薄壁管成形性能和壁厚分布,并进行了实验研究。结果表明,该工艺可以很好的解决内壁起皱、外壁拉裂等成形缺陷,对生产实践具有一定的指导意义。 |
| 关 键 词： | 薄壁管材 内胀推弯 弯曲成形 数值模拟 |
Numerical simulation and experimental research on internal expansion push bending of thin-walled tube |
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| LIU Jin-song , ZHANG Xing-hua , LIU Hai , ZHANG Shi-hong.Numerical simulation and experimental research on internal expansion push bending of thin-walled tube[J].Forging & Stamping Technology,2012,37(2):63-67. | |
| Authors: | LIU Jin-song ZHANG Xing-hua LIU Hai ZHANG Shi-hong |
| Affiliation: | 1.School of Materials Science and Engineering,Shenyang Ligong University,Shenyang 110159,China; 2.Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China) |
| Abstract: | In view of the forming defects of inner wall wrinkling and outer wall tensile cracks during bending process of thin-walled tubes,internal expansion push bending forming technology was proposed.The forming specification was 1Cr18Ni9Ti thin-walled tube of Φ30 mm×0.3 mm.The thin-wall tubes’ bending forming properties and wall thickness distribution under different internal expansion pressures were researched by finite element simulation.The results of experiments show that the new technology could resolve the forming defects of inner wall wrinkling and outer wall tensile cracks well.It has a great significance to production practice. |
| Keywords: | thin-walled tube internal expansion push bending bending numerical simulation |
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