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Abstract：
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For the problem of the die failed to close and six small bosses of incomplete filling during the first forging output flange of RV reducer, upsetting-pre forging-final forging process was formulated, and the first blocker was designed by the requirement of six small bosses to be filled on forging. However, in the process of trial production, although the forging was filled enough, the folding defects still appeared. Therefore, numerical analysis was conducted by software DEFORM-3D. The results show that the design of pre-forging is unreasonable resulting in uneven metal flow speed, and the confluence of multistrand material causes the folding defects. Thus, the blocker is redesigned considering the reason of folding appearance, and then a verification by finite element simulation is carried out. The result shows that the metal flow is reasonable, and there is almost no metal confluence. Finally, a qualified forging is obtained.
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Funds：
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国家自然科学基金资助项目（51775249）
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AuthorIntro：
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作者简介：胡晓峰（1992-），男，硕士研究生
E-mail：hxfkxx0912@163.com
通讯作者：王雷刚（1963-），男，博士，教授，博士生导师
E-mail：lgwang@mail.ujs.edu.cn
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Reference：
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［1］李金华. 德国“工业4.0”与“中国制造2025”的比较及启示
［J］. 中国地质大学学报：社会科学版,2015,15(5):71-79.
Li J H. Comparison and revelation of German “Industrial 4.0” and “Made in China 2025”
［J］. Journal of China University of Geosciences: Social Science Edition, 2015, 15(5):71-79.
［2］王田苗,陶永. 我国工业机器人技术现状与产业化发展战略
［J］. 机械工程学报,2014,50(9):1-13.
Wang T M, Tao Y. Research status and industrialization development strategy of Chinese industrial robot
［J］. Journal of Mechanical Engineering, 2014, 50(9):1-13.
［3］贡林欢. 工业机器人用RV减速器的样机试制及试验研究
［D］. 常州：江苏理工学院,2015.
Gong L H. Trial Production and Experimental Study on RV Reducer for Industrial Robot
［D］. Changzhou: Jiangsu Institute of Technology,2015.
［4］赵铮. 工业机器人减速器RV320的修形参数优化与工艺性研究
［D］. 天津：天津大学,2013.
Zhao Z. Optimization of Machining Parameters and Technology Research on Industrial Robot Reducer RV320
［D］. Tianjin: Tianjin University, 2013.
［5］刘玉红,贺其申,黄新军. 50Mn钢凸轮轴的中频感应淬火
［J］. 热处理,2012,27(3):58-61.
Liu Y H, He Q S, Huang X J. Medium-frequency induction hardening of 50Mn steel camshaft
［J］. Heat Treatment, 2012,27(3):58-61.
［6］吕炎.锻模设计手册
［M］.北京：机械工业出版社，2005.
Lyu Y. Forging Die Design Manual
［M］. Beijing: China Machine Press, 2005.
［7］夏鸿杰. 基于锻造特征的预锻件设计
［D］.武汉：华中科技大学,2011.
Xia H J. Preform Design Based on Forging Features
［D］. Wuhan: Huazhong University of Science and Technology, 2011.
［8］齐敏杰,张学宾,宋克兴,等. 大型液压装载机摇臂锻造成形模拟
［J］.锻压技术,2017,42(2):1-4.
Qi M J, Zhang X B, Song K X, et al. Forging simulation on the rocker arm of large hydraulic loader
［J］. Forging & Stamping Technology,2017, 42(2):1-4.
［9］马强,刘君,孟庆玉. 锻造MR曲轴缺陷分析及成因探讨
［J］. 锻压技术,2017,42(10):26-32.
Ma Q, Liu J, Meng Q Y. Defect analysis and mechanism discussion on forged automobile MR crankshaft
［J］. Forging & Stamping Technology, 2017,42(10):26-32.
［10］Fan L, Wang Z, Wang H. 3D finite element modeling and analysis of radial forging processes
［J］. Journal of Manufacturing Processes, 2014, 16(2):329-334.
［11］Ou H, Lan J, Armstrong C G, et al. An FE simulation and optimisation approach for the forging of aeroengine components
［J］. Journal of Materials Processing Technology, 2004, 151(1-3):208-216.
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