Analysis on folding defects of inner grooved copper tubes during ball spin forming

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	Analysis on folding defects of inner grooved copper tubes during ball spin forming
	G. L. Zhang; S. H. Zhang; B. Li; H. Q. Zhang
	2007
发表期刊	Journal of Materials Processing Technology
ISSN	0924-0136
卷号	184 期号:1-3 页码:393-400
摘要	This paper mainly focuses on the folding which is the main defect on the inner surface of the inner grooved copper tube during ball spin forming. The material model and two-dimensional geometrical model of finite element simulation of multi-step ball spinning for forming inner grooved copper tubes have been built. The folding defects formed both on one side of the fin and on the bottom of inner grooves of the copper tubes had been analyzed according to the finite element results such as strain distribution, metal flow and contact state between the copper tube and the plug. Efficient measures have been proposed to prevent the folding defects. The SEM observation on the inner surface of the finished inner grooved copper tubes has been performed to illustrate the folding distribution and shape. Metallographic observation on the microstructure of cross-section of the copper tubes has been performed to analyze the forming process of folding. The results of the finite element simulation agree well with the experimental observation of the folding defects on the inner surface and the microstructure of cross-section of the inner grooved copper tubes. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china. shenyang univ, shenyang 110044, peoples r china.;zhang, gl (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;zhanggl@imr.ac.cn
关键词	Inner Grooved Copper Tube Ball Spinning Finite Element Folding
URL	查看原文
WOS记录号	WOS:000244811800054
引用统计	被引频次：46[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34020
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. L. Zhang,S. H. Zhang,B. Li,et al. Analysis on folding defects of inner grooved copper tubes during ball spin forming[J]. Journal of Materials Processing Technology,2007,184(1-3):393-400.
APA	G. L. Zhang,S. H. Zhang,B. Li,&H. Q. Zhang.(2007).Analysis on folding defects of inner grooved copper tubes during ball spin forming.Journal of Materials Processing Technology,184(1-3),393-400.
MLA	G. L. Zhang,et al."Analysis on folding defects of inner grooved copper tubes during ball spin forming".Journal of Materials Processing Technology 184.1-3(2007):393-400.