锻压技术

辊型参数对316L极板连续流道辊压成形的影响

英文标题：Influence of roll profile parameters on continuous flow channel rolling for 316 L pole plate

作者：赵富强杨森赵小军王栋崔仁杰

分类号：TG76

出版年,卷(期):页码：2021,46(11):91-101

摘要：

设计了辊压成形工艺制备氢燃料电池金属极板流道的辊型，并对316L不锈钢极板流道进行辊压成形过程的数值模拟，将最大减薄率、最大深度偏差率作为评价指标，分析凸模高度、宽度、拔模角及圆角半径等辊型参数对极板流道成形的深度和厚度的影响规律。结果表明：凸模高度由0.30 mm增加至0.40 mm时，金属极板流道的最大等效应力增大，最大减薄率增大，最大深度偏差率减小；凸模宽度由1.6 mm增加至1.8 mm时，金属极板流道的最大等效应力减小，最大减薄率减小，最大深度偏差率增大；凸模圆角半径由0.15 mm增加至0.25 mm时，金属极板流道各评价指标均减小；凸模拔模角由15°增大至25°时，金属极板流道各评价指标均减小。采用极差分析法发现凸模圆角半径是影响极板流道辊压成形的主要因素，并对不同凸模圆角半径的流道进行了实验验证。

The roll shape for the metal pole plate flow channel of hydrogen fuel cell which was prepared by the rolling process was designed, and the rolling process of 316 L stainless steel pole plate flow channel was numerically simulated. Then, taking the maximum thinning ratio, the maximum depth deviation ratio as evaluation indexes, the influences of roll shape parameters, such as punch height, width, draft angle and fillet radius on the depth and thickness for the forming of pole plate flow channel were studied. The results show that when the punch height increases from 0.30 mm to 0.40 mm, the maximum equivalent stress and the maximum thinning rate of metal pole plate flow channel increases, and its maximum depth deviation rate decreases. When the punch width increases from 1.6 mm to 1.8 mm, the maximum equivalent stress and the maximum thinning rate of metal pole plate flow channel decreases, and its maximum depth deviation rate increases. When the fillet radius of punch increases from 0.15 mm to 0.25 mm and the draft angle of punch increases from 15° to 25°, all evaluation indexes of metal pole plate flow channel decrease. In addition, using the range analysis method, it is found that the fillet radius is the main factor affecting the rolling of pole plate flow channel, and the experiment verification for the flow channels with different fillet radiuses of punch is carried out.

基金项目：

山西省科技计划揭榜招标项目（20201101020）

作者简介：赵富强（1981-），男，博士，副教授，E-mail：zfqgear@163.com；通信作者：杨森（1997-），男，硕士研究生，E-mail：643992633@qq.com

参考文献：

[1]Sim Y, Kwak J, Kim S Y, et al. Formation of 3D grapheneNi foam heterostructures with enhanced performance and durability for bipolar plates in a polymer electrolyte membrane fuel cell[J]. Journal of Materials Chemistry A, 2018,6(4):1504-1512.

[2]Wang L, Tao Y, Zhang Z, et al. Molybdenum carbide coated 316L stainless steel for bipolar plates of proton exchange membrane fuel cells[J]. International Journal of Hydrogen Energy, 2019,44(10):4940-4950.

[3]谷云飞. 质子交换膜燃料电池金属双极板成形工艺研究[D]. 武汉:武汉理工大学, 2011.

Gu Y F.Study on the Forming Process of Metallic Bipolar Plate for PEM Fuel Cell[D]. Wuhan: Wuhan University of Technology, 2011.

[4]蔡兴华. 燃料电池304不锈钢双极板的电液成形工艺研究[D].哈尔滨：哈尔滨工业大学,2020.

Cai X H. Electrohydraulic Forming of 304 Stainless Steel Bipolar Plate for Fuel Cell[D]. Harbin：Harbin Institute of Technology，2020.

[5]Liu Y X, Hua L. Fabrication of metallic bipolar plate for proton exchange membrane fuel cells by rubber pad forming[J]. Journal of Power Sources,2009,195(11):3529-3535.

[6]Sasawat Mahabunphachai,Muammer Ko. Fabrication of microchannel arrays on thin metallic sheet using internal fluid pressure: Investigations on size effects and development of design guidelines[J]. Journal of Power Sources,2007,175(1):363-371.

[7]Hu Q H, Zhang D M, Fu H, et al. Investigation of stamping process of metallic bipolar plates in PEM fuel cell-Numerical simulation and experiments[J]. International Journal of Hydrogen Energy, 2014, 39(25):13770-13776.

[8]Alexander Bauer, Sebastian Hrtel, Birgit Awiszus. Manufacturing of metallic bipolar plate channels by rolling[J]. Journal of Manufacturing and Materials Processing,2019,3（2）:48.https：//doi.org/10.3390/jmmp3020048.

[9]赵富强, 祁慧青, 黄庆学, 等.一种燃料电池金属极板直微流道成形方法[P].中国：201910834814.8,2020-02-24.

Zhao F Q, Qi H Q, Huang Q X, et al. A Direct Microchannel Forming Method for Metal Plate of Fuel Cell [P].China: 201910834814.8，2020-02-24.

[10]Buddhika Abeyrathna, Zhang P, Pereiraet Michael P. Microroll forming of stainless steel bipolar plates for fuel cells[J]. International Journal of Hydrogen Energy, 2019，44（7）:3861-3875.

[11]Zhang P, Pereira M, Rolfe B, et al. Deformation in micro roll forming of bipolar plate[J]. Journal of Physics: Conference Series,2017,896(1):012115.

[12]黄纪绘，彭林法. 金属薄板微细沟槽结构辊压成形工艺的研究[A].第十五届全国塑性工程学会年会暨第七届全球华人塑性加工技术交流会[C].济南，2017.

Huang J H, Peng L F. Study on eabrication of microchannel features with high aspect ratio by thin metal sheet roll forming process[A]. The 15th Annual Conference of China Society for Technology of Plasticty, CMES and the 7th Global Chinese Plastic Processing Technology Exchange Conference[C]. Jinan, 2017.

[13]Huang J H, Deng Y J, Yi P Y, et al. Experimental and numerical investigation on thin sheet metal roll forming process of micro channels with high aspect ratio[J]. International Journal of Advanced Manufacturing Technology,2019,100（1-4）：117-129.

[14]Leng Y, Ming P W, Yang D J,et al. Stainless steel bipolar plates for proton exchange membrane fuel cells: Materials, flow channel design and forming processes[J]. Journal of Power Sources,2020,451：227783.

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