锻压技术

铝合金旋转盘锻件等温精密成形工艺研究

英文标题：Study on isothermal precision forming process of aluminium alloy rotating disk

作者：吴继超张艳秋赵亚楠江树勇单德彬

分类号：

出版年,卷(期):页码：2014,39(1):14-20

摘要：

为选择合适的等温精密成形工艺，获得综合性能优良的铝合金旋转盘锻件，采用有限元法模拟分析了两种不同坯料条件下旋转盘锻件等温精密成形时的金属流动规律，并通过镦粗、预锻制坯和终锻工艺成形出了外形完美、综合性能优良的铝合金旋转盘锻件。结果表明：采用环形坯料成形时金属主要沿径向充填模膛，易产生充不满缺陷，而采用五角形坯料则使金属材料主要沿轴向充填模膛，可以预防该类缺陷的发生。虽然环形坯料在分模面的投影面积较五角形坯料的小，成形时所需载荷却大得多。因此，五角形坯料是等温精密成形旋转盘锻件的最佳坯料方案。

In order to choose an appropriate isothermal precision forming process and obtain the aluminium alloy rotating disk forging with excellent combination properties, the finite element method (FEM) was adopted to analyze metal flow laws of isothermal precision forming of rotating disk based on two different billets. The aluminium alloy forging of rotating disk with perfect shape and excellent combination properties was obtained by the process of upsetting, preforging and finish forging. The results show that the metal flows mainly along the radial direction in the process of forging when the ring billet is adopted, and underfilling defect occurs very easily. However, the pentagon billet can prevent this kind of defect because it can make the metal fill the impression along axial direction. The load in forging the rotating disk with ring billet is much larger than that with pentagon billet even though the projected area of ring billet is smaller than that of pentagon billet. Therefore, the pentagon billet is the optimum billet project for isothermal precision forming of rotating disk.

基金项目：

国家自然科学基金资助项目(50775051)

吴继超（1973-），男，硕士，高级工程师

参考文献：

[1]Shan D B, Liu F, Xu W C, et al. Experimental study on process of precision forging of an aluminium-alloy rotor[J]. Journal of Materials Processing Technology, 2005, 170(1-2): 412-415.

[2]Petrov P, Perfilov V, Stebunov S. Prevention of lap formation in near net shape isothermal forging technology of part of irregular shape made of aluminium alloy A92618[J]. Journal of Materials Processing Technology, 2006, 177(1-3): 218-223.

[3]黃湘龙, 易幼平, 李蓬川, 等. TC18钛合金模锻件锻造成形工艺仿真[J]. 锻压技术, 2012, 37(5): 7-11.

Huang Xianglong, Yi Youping, Li Pengchuan, et al. Research on forging process for TC18 titanium alloy forging[J]. Forging & Stamping Technology, 2012, 37(5): 7-11.

[4]刘显东, 张永安, 李锡武, 等. B95оч铝合金的热变形行为研究[J]. 稀有金属, 2012, 36(5): 687-693.

Liu Xiandong, Zhang Yongan, Li Xiwu, et al. Hot deformation behavior of B95оч aluminum alloy[J]. Chinese Journal of Rare Metals, 2012, 36(5): 687-693.

[5]刘英, 朱宝宏, 张永安, 等. 7449 高强韧铝合金均匀化热处理及微观组织演变[J]. 稀有金属, 2012, 36(4): 529-534.

Liu Ying, Zhu Baohong, Zhang Yongan, et al. Homogenization treatment and microstructure of high-strength and high-toughness 7449 aluminum alloy[J]. Chinese Journal of Rare Metals, 2012, 36(4): 529-534.

[6]齐立春, 黄利军, 刘德林, 等. Ti-1023钛合金连接件锻件折叠缺陷分析[J]. 锻压技术, 2012, 37(6): 4-7.

Qi Lichun, Huang Lijun, Liu Delin, et al. Analysis of Ti-1023 titanium alloy joint forging fold[J]. Forging & Stamping Technology, 2012, 37(6): 4-7.

[7]Zhang Y Q, Shan D B, Xu F C. Flow lines control of disk structure with complex shape in isothermal precision forging[J]. Journal of Materials Processing Technology, 2009, 209(2): 745-753.

[8]邵勇, 郭平义. 基于Deform的叶片叶身预锻结构形式优化设计[J]. 锻压技术, 2012, 37(5): 12-16.

Shao Yong, Guo Pingyi. Optimal pre-forging shape design of blade body based on Deform software[J]. Forging & Stamping Technology, 2012, 37(5): 12-16.

[9]Ishikawa T, Yukawa N, Yoshida Y, et al. Analytical approach to elimination of surface micro-defects in forging[J]. CIRP Annals-Manufacturing Technology, 2005, 54(1): 249-252.

[10]韦韡, 蒋鹏, 唐永夫, 等. 铝合金筋类零件锻造缺陷分析[J]. 锻压技术, 2012, 37(4): 18-21.

Wei Wei, Jiang Peng, Tang Yongfu, et al. Analysis on forging defects of aluminum alloy forging with rib[J]. Forging & Stamping Technology, 2012, 37(4): 18-21.

[11]Zhang Y Q, Jiang S Y, Zhao Y N, et al. Isothermal precision forging of complex-shape rotating disk of aluminium alloy based on processing map and digitized technology[J]. Materials Science and Engineering A,2013:580:294-304.

[12]曾渝, 尹志民, 朱远志, 等. RRA处理对超高强铝合金微观组织与性能的影响[J]. 中国有色金属学报. 2004, 14(7): 1188-1194.

Zeng Yu, Yin Zhimin, Zhu Yuanzhi, et al. Effect of RRA on microstructure and properties of new type ultra high strength aluminum alloy [J]. The Chinese Journal of Nonferrous Metals, 2004, 14(7): 1188-1194.

[13]Zhang Y Q, Xu F C, Jiang S Y, et al. Influence of fire times on the microstructure and mechanical properties of forgings with complex shape[J]. Advanced Science Letters, 2011, 4 (3): 1027-1031.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】