Study on Springback Behavior in Hydroforming of Micro Channels for a Metal Bipolar Plate

doi:10.3390/ma17215386

IMR OpenIR

	Study on Springback Behavior in Hydroforming of Micro Channels for a Metal Bipolar Plate
	Su, Zonghui 1,2; Xie, Wenlong 2,3; Xu, Yong 2,3; Li, Changsheng 1; Xia, Liangliang 4; Yang, Baocheng 2,3; Gao, Mingyu 2; Song, Hongwu 2,3; Zhang, Shihong 2,3
通讯作者	Xu, Yong(yxu@imr.ac.cn)
	2024-11-01
发表期刊	MATERIALS
卷号	17 期号:21 页码:20
摘要	Bipolar plates are one of the most important components of proton exchange membrane fuel cells. With the miniaturization of bipolar plate flow channel sizes and the increasing demand for precision, springback has become a key focus of research in the bipolar plate forming process. In this paper, the hydroforming process for 316L stainless steel bipolar plates was studied, and an FEM model was built to examine the stress and strain at various locations on the longitudinal section of the plate. Modeling accuracy was validated by the comparison of experimental profile and thickness distribution. The effects of forming pressure and grain size on springback behavior are discussed. The results show that with increasing forming pressure, the springback value decreases initially, followed by an increase, but then again decreases. When the forming pressure is 80 MPa-100 MPa, the deformation of the lower element of the upper rounded corner is not uniform with more elastic regions, and the springback is positively correlated with forming pressure. The springback distribution pattern on the cross-section of the bipolar plate changes from a normal distribution to a distribution of "M" shape with increased pressure. The larger the grain size, the lower the yield strength elastic proportion, resulting in a decrease in springback of the sheet. The maximum amount of springback of the bipolar plate is 3.1 mu m when the grain size is 60.7 mu m. The research results provide a reference for improving the forming quality of metal bipolar plates with different flow channel shapes.
关键词	bipolar plate springback hydroforming deformation degree grain size
资助者	National Natural Science Foundation of China ; International Partnership Program of Chinese Academy of Sciences
DOI	10.3390/ma17215386
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; International Partnership Program of Chinese Academy of Sciences[172GJHZ2022096FN] ; [52475411]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001351777200001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/191202
专题	中国科学院金属研究所
通讯作者	Xu, Yong
作者单位	1.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shenyang Key Lab Aerosp Complex Components Precis, Shenyang 110016, Peoples R China 4.Ludong Univ, Coll Transportat, Yantai 264025, Peoples R China
推荐引用方式 GB/T 7714	Su, Zonghui,Xie, Wenlong,Xu, Yong,et al. Study on Springback Behavior in Hydroforming of Micro Channels for a Metal Bipolar Plate[J]. MATERIALS,2024,17(21):20.
APA	Su, Zonghui.,Xie, Wenlong.,Xu, Yong.,Li, Changsheng.,Xia, Liangliang.,...&Zhang, Shihong.(2024).Study on Springback Behavior in Hydroforming of Micro Channels for a Metal Bipolar Plate.MATERIALS,17(21),20.
MLA	Su, Zonghui,et al."Study on Springback Behavior in Hydroforming of Micro Channels for a Metal Bipolar Plate".MATERIALS 17.21(2024):20.