Influence of loading path on formability of 304 stainless steel tubes
文献类型：期刊论文
| 作者 | S. H. Zhang ; A. Y. Yuan ; B. Wang ; H. Q. Zhang ; Z. T. Wang |
| 刊名 | Science in China Series E-Technological Sciences
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:8页码:2263-2268 |
| 关键词 | loading path formability tube stainless steel hydroforming process simulation |
| ISSN号 | 1006-9321 |
| 中文摘要 | The loading path affects the metal formability remarkably in tube hydroforming, and it is also one of the research focuses. Recently, some scholars abroad proposed a new fluctuant hydraulic loading method, which can improve the formability of tubes in hydroforming. Related studies have shown that this new loading method can improve the tube formability, the distribution of deformation is more uniform and this is useful for avoiding excessive local thinning. In this paper, tube hydroforming experiments without axial feeding were carried out; the influences of the loading methods on formability of stainless steel tubes were studied. Through the comparison of the experimental results under the condition of monotonous increase loading and fluctuation hydraulic loading, the outside diameter distribution, the thickness distribution and the crack expansion forms of deformation zone all fully prove that the uniformity of the distribution of tube deformation and formability have been increased significantly under the condition of fluctuation loading without axial feeding, the reasons should be distinguished from the fluctuation hydroforming with axial feeding. In order to study the forming mechanism, uniaxial tensile test of tubes similar to fluctuation loading deformation is designed in this paper, namely intermittent tensile test. It is found that intermittent uniaxial stretch can improve the tube elongation at fracture by about 40% and the deformation distribution is more uniform than that through uniaxial tensile test of the stainless steel tube. In the process of intermittent tensile tests, changes of metal microstructures brought by the loading and unloading processes are the main reasons that improve the formability of the tubes. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/32563]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | S. H. Zhang,A. Y. Yuan,B. Wang,et al. Influence of loading path on formability of 304 stainless steel tubes[J]. Science in China Series E-Technological Sciences,2009,52(8):2263-2268. |
| APA | S. H. Zhang,A. Y. Yuan,B. Wang,H. Q. Zhang,&Z. T. Wang.(2009).Influence of loading path on formability of 304 stainless steel tubes.Science in China Series E-Technological Sciences,52(8),2263-2268. |
| MLA | S. H. Zhang,et al."Influence of loading path on formability of 304 stainless steel tubes".Science in China Series E-Technological Sciences 52.8(2009):2263-2268. |
入库方式： OAI收割
来源：金属研究所
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