Transactions of Materials and Heat Treatment

Title：Finite element analysis and optimization based on flanging fracture mode of small shaft for 30CrMnSiNi2A steel

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ClassificationCode：TG386

year,vol(issue):pagenumber：2020,45(11):111-119

Abstract：

The phenomenon of fracture and ring release at the riveting and flanging area of small shaft for 30CrMnSiNi2A steel shackle occurs, and the cracking rate is about 50%. Then, through the macro and micro observations of fracture, the size inspection, the hardness inspection, the metallographic structure inspection and the production process review for the small shaft of shackle, combined with finite element calculation, the plastic deformation at the flanging area during the riveting process for the small shaft of shackle was simulated and reproduced, and the cause of cracking was determined as well as the corresponding optimization plan was given. The analysis results show that the unreasonable chamfer structure of inner hole at the flanging area is the main reason for the large stress cracks and the overload fracture and ring release during the riveting process of small shaft, and the higher surface roughness promotes the flanging crack. Based on the simulation results, the diameter, fillet, depth and surface roughness of inner hole for small shaft were optimized, and after riveting and flanging, there was no cracks in the visual inspection, magnifying glass inspection and penetration inspection.

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何军（1970-），女，硕士，高级工程师 E-mail：Hejun132@163.com

Reference：

[1]GJB 1951—94，航空用优质结构钢棒规范[S].

GJB 1951—94，Specification for quality structure steel bars for aviation[S].

[2]赵宁，张运军，陈天赋，等. V5型转向节臂部锻造开裂研究[J].塑性工程学报，2017，24(3): 7-12.

Zhao N，Zhang Y J，Chen T F，et al. Research on forging crack of V5 type knuckle arm[J].Journal of Plasticity Engineering，2017，24(3): 7-12.

[3]袁志鹏，刁法玺，陈新平. QP980钢门槛隔板零件翻边成形边部开裂研究[J].锻压技术，2018,43(1):53-59.

Yuan Z P，Diao F X，Chen X P. Research on edge cracking in flanging for threshold partition of steel QP980 [J]. Forging & Stamping Technology，2018,43(1):53-59.

[4]徐肖，黄涛，王震. 基于CAE 的典型前围板下横梁冲压成形工艺[J]. 锻压技术，2019，44（8）：26-34.

Xu X, Huang T, Wang Z. Stamping process of typical front beam connecting part based on CAE [J]. Forging & Stamping Technology，2019,44(8):26-34.

[5]赵腾伦. ABAQUS 6.6在机械工程中的应用[M].北京：中国水利水电出版社，2007.

Zhao T L. The Application of ABAQUS 6.6 in Mechanical Engineering[M].Beijing：China Water Conservancy and Hydropower Press,2007.

[6]ABAQUS. ABAQUS有限元分析软件在机械行业的应用[J].机械工业信息与网络, 2006,(2): 44-45.

ABAQUS. Application of ABAQUS finite element analysis software in machinery industry[J].Machinery Industry Information and Network, 2006,(2): 44-45.

[7]朱瑞，李雪，崔琳琳，等. ABAQUS在轴承翻边工艺改进中的应用[A]. 第五届中国航空学会青年科技论坛文集(第5集)[C]. 北京：中国航空学会，2012.

Zhu R，Li X，Cui L L，et al. Application of ABAQUS in the improvement of bearing flanging process[A]. An Collection of the Fifth China Aeronautical Society Youth Science and Technology Forum(Episode 5) [C]. Beijing:Chinese Aeronautical Society，2012.

[8]卢险峰，张朝阁，李湖峰，等. 锥形冲头翻边变形应力场的数值仿真[J]. 塑性工程学报, 2007,14(3):40-43.

Lu X F，Zhang C G，Li H F，et al. Numerical simulation of deformation stress field in flanging of conical punch[J]. Journal of Plasticity Engineering，2007,14(3):40-43.

[9]郝晶. 液压冲孔-翻边复合工艺研究[D]. 哈尔滨：哈尔滨工业大学，2013.

Hao J. Research on the Composite Process of Hydraulic Punching and Flanging[D]. Harbin：Harbin Institute of Technology，2013.

[10]褚亮. 锥形凹模缩口工艺试验及理论研究[D]. 南昌：南昌大学，2005.

Chu L. Technological Test and Theoretical Research on the Necking of Conical Concave Die[D]. Nanchang：Nanchang University, 2005.

[11]杨振朝，杨福杰，肖继明. CFRP铣削有限元模型建立及切削力仿真分析[J].宇航材料工艺，2019，49（3）：36-40.

Yang Z C，Yang F J，Xiao J M. CFRP milling finite element model establishment and cutting force simulation analysis[J]. Aerospace Materials Technology，2019，49（3）：36-40.

[12]石亦平, 周玉蓉. ABAQUS有限元分析实例详解[M]. 北京：机械工业出版社, 2006.

Shi Y P, Zhou Y R. Detailed Explanation of ABAQUS Finite Element Analysis Examples[M]. Beijing：China Machine Press, 2006.

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