锻压技术

带纵向外筋薄壁筒形件复合流动成形数值模拟与工艺优化

英文标题：Numerical simulation and process optimization of composite flow forming for thin-walled cylinder with longitudinal external ribs

作者：毛华杰刘亚鹏邓加东

单位：武汉理工大学

关键词：复合流动成形纵向外筋薄壁筒形件旋压力正交优化

分类号：TG306

出版年,卷(期):页码：2020,45(4):93-99

摘要：

采用传统的切削、挤压方法加工外表面带纵向外筋薄壁筒形件，存在着材料利用率较低、成本较高的问题,因此，提出了一种新的复合流动成形工艺。利用有限元分析软件，研究了预成形压下量、道次减薄量分配比以及滚珠直径等工艺参数对外筋成形效果的影响规律。研究发现：预成形压下量越大，外筋填充效果越好；不同阶段中，滚珠直径对外筋填充效果影响不同；采用两道次成形时，可以显著降低成形过程中的轴向旋压力。以外筋填充率和旋压力作为优化指标，通过正交试验，获得外表面带纵向外筋薄壁筒形件复合流动成形的最佳工艺方案，选取最佳工艺方案，通过试验验证了复合流动成形工艺的可行性，为此类构件的高效、低耗生产提供了理论设计依据。

The traditional cutting and extrusion methods for processing thin-walled cylinder with longitudinal external ribs have the problems of low material utilization and high cost respectively. So a new composite flow forming process technique was proposed. By using finite element analysis software, the influence laws of process parameters such as pre-forming reduction, pass thickness reduction distribution ratio and ball diameter on forming effect of external ribs were studied. The result shows that the bigger the pre-forming reduction is, the better the filling effect of external ribs is. The influences of ball diameter on filling effect of ribs are different in different stages. When using two passes, the axial spinning pressure during the process can be significantly cut down. The filling rate of external ribs and spinning pressure were taken as indexes. The best process scheme of composite flow forming for thin-walled cylinder parts with longitudinal external ribs was obtained by orthogonal test. The optimal process scheme was selected and the feasibility of the composite flow forming process was verified by experiments, which provided a theoretical design basis for the efficient and low-cost production of such components.

基金项目：

国家自然科学基金资助项目（51805391）；教育部创新团队发展计划项目(No.IRT_17R83)；中央高校基本科研业务费专项资金资助（2019IVB021）

毛华杰(1962-)，男，硕士，教授 E-mail：maohj@whut.edu.cn 通讯作者：邓加东(1988-)，男，博士，讲师 E-mail：dengjd88@126.com

参考文献：

[1]李贵重,邓加东,钱东升. 带I型纵筋薄壁构件挤压成形数值模拟与工艺优化[J]. 锻压技术, 2019, 44(4): 83-90.

Li G C, Deng J D, Qian D S. Numerical simulation and process optimization on extrusion forming for thin-walled component with I-type longitudinal ribs[J]. Forging & Stamping Technology, 2019, 44(4): 83-90.

[2]杨文华,廖哲,郝花蕾, 等. 3A21铝合金锥形件旋压成形工艺[J]. 锻压技术, 2019, 44(10): 88-94.

Yang W H, Liao Z, Hao H L, et al. Spinning forming process of 3A21 aluminum alloy conical parts[J]. Forging & Stamping Technology, 2019, 44(10): 88-94.

[3]刘永锋,高新,赵春江,等. 薄壁管材滚珠旋压数值模拟研究[J]. 工程设计学报, 2015，22(6): 562-568.

Liu Y F, Gao X, Zhao C J, et al. Research on numerical simulation of ball spinning for thin-wall tube[J]. Chinese Journal of Engineering Design, 2015, 22(6): 562-568.

[4]江树勇,孙金凤,赵立红,等. 滚珠直径对薄壁筒形件反向滚珠旋压成形性影响研究[J]. 材料科学与工艺, 2011, 19(2):1-4，9.

Jiang S Y, Sun J F, Zhao L H, et al. Study on influence of ball diameter on backward ball spinning of thin-walled tube[J]. Materials Science & Technology, 2011, 19(2):1-4，9.

[5]孙于晴,杨延涛,赵升吨，等. 错距旋压技术研究现状及发展方向[J]. 锻压技术, 2018, 43(12):1-7.

Sun Y Q, Yang Y T, Zhao S D, et al. Research progress and development trend of stagger spinning technology[J]. Forging & Stamping Technology, 2018, 43(12):1-7.

[6]吴礼,余琪,曾延琦. Φ7 mm双旋向内螺纹铜管旋压成形工艺研究[J]. 铜业工程, 2017，(2): 16-18，22.

Wu L, Yu Q, Zeng Y Q. Study on ball spinning forming process of Φ7 mm inner-grooved copper tube with double spin[J]. Copper Engineering, 2017，(2): 16-18，22.

[7]汤传尧,樊文欣,吉梦雯, 等. 旋轮参数对强力旋压连杆衬套残余应力的影响[J].锻压技术, 2018,43(3):89-94.

Tang C R, Fan W X, Ji M W, et al. Influence of spinning roller parameters on residual stress of power spinning connecting rod bushing[J]. Forging & Stamping Technology, 2018, 43(3): 89-94.

[8]Bai Q, Yang H, Zhan M. Finite element modeling of power spinning of thin-walled shell with hoop inner rib[J]. Transactions of Nonferrous Metals Society of China, 2008，18(1):6-13.

[9]董飞,李成铭,李萍,等.带内筋筒形件滚珠旋压的数值模拟[J]. 精密成形工程, 2013, 5(3): 24-27.

Dong F, Li C M, Li P, et al. Simulation research of ball spinning of tubular parts with inner rib[J]. Journal of Netshape Forming Engineering, 2013, 5(3): 24-27.

[10]Zeng X, Fan X G, Li H W, et al. Flow forming process of thin-walled tubular parts with cross inner ribs [J]. Procedia Manufacturing, 2018，15:1239-1246.

[11]Jiang S Y, Ren Z Y, Li C F, et al. Role of ball size in backward ball spinning of thin-walled tubular part with longitudinal inner ribs [J]. Journal of Materials Processing Technology, 2008，209(4):2167-2174.

[12]Zhao D, Deng J D, Mao H J, et al. FE simulation and experiment study on flow forming of inner-splined flange [J]. Procedia Engineering, 2017, 207: 25-30.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】