锻压技术

薄壁封头电磁感应加热旋压工艺

英文标题：Electromagnetic induction heating spinning process of thin-wall head

作者：易兆祥李新和常士武饶国举曹权

单位：中南大学

分类号：TG306

出版年,卷(期):页码：2018,43(1):60-65

摘要：

火箭燃料贮箱薄壁球面封头，由于其具有大径厚比、弱刚性的特点，利用传统旋压加工方法容易出现封头结构失稳现象。提出薄壁封头电磁感应加热旋压成形的工艺方法，采用MSC.Marc有限元软件建立了薄壁封头加热旋压三维有限元仿真模型。研究了主要工艺参数——旋压温度T、进给率f和旋轮圆角半径r对封头壁厚均匀性的影响，以及温度场对法兰稳定性的作用。结果表明：在合理范围内，提高旋压温度、增大旋轮圆角半径和减小进给率可以提高成形件质量。最终确定优化工艺参数为：r=4 mm，f=1.35 mm·r-1，T=250～300 ℃。通过开展封头电磁感应加热旋压实验，验证了电磁感应加热旋压工艺方案能有效抑制法兰起皱并提高工件壁厚均匀性。

The thin-wall spherical head of rocket fuel tank with characteristics of large diameter-thickness ratio and weak rigidity is prone to the instable structure of head processed by the traditional spinning method. Therefore, the spinning process by electromagnetic induction heating for thin-wall head was put forward, and the three-dimensional finite element simulation model of electromagnetic induction heating spinning for thin-wall head was established by finite element software MSC.Marc. Then, the influences of spinning temperature T, feed rate f and fillet radius of roller r on the wall thickness uniformity of head and the effects of temperature field on the stability of flange were analyzed. The results show that improving the spinning temperature, increasing the fillet radius of roller and reducing the feed rate within reasonable ranges can improve the quality of forming parts, and the optimized process parameters are r=4 mm, f=1.35 mm·r-1 and T=250-300 ℃. Furthermore, the electromagnetic induction heating spinning test of head verifies that the spinning process by electromagnetic induction heating can effectively restrain the flange wrinkling and improve the wall thickness uniformity of part.

基金项目：

国家重点基础研究发展计划（973）资助项目（2014 CB046600）

作者简介：易兆祥(1993－)，男，硕士研究生，E-mail：yi_zhaoxiang@163.com；通讯作者：李新和(1957－)，男，博士，教授，E-mail：13607444149@163.com

参考文献：

[1]周丽华.大型运载火箭自动对接技术研究[D].哈尔滨：哈尔滨工业大学,2011.

Zhou L H .Research on Auto-joint Technique of Large Launch Vehicle[D]. Harbin：Harbin Institute of Technology,2011.

[2]朱平萍,刘宪力.大型贮箱结构及工艺性研究[J].航天制造技术,2011，(3):42-45，58.

Zhu P P，Liu X L. Structural and technological research on large tank[J].Aerospace Manufacturing Technology，2011，(3):42-45，58.

[3]周磊,李新和,俞大辉,等.球冠形薄壁封头在小减薄率工况下的失稳研究[J].锻压技术,2016,41(1):25-31.

Zhou L, Li X H, Yu D H,et al. Research on instabilities of thin-walled spherical head at low thinning rate[J].Forging & Stamping Technology,2016,41(1):25-31.

[4]俞大辉,李新和,卜佳南,等.大减薄率薄壁半球形封头扩径旋压的失稳研究[J].塑性工程学报, 2016,23(4):48-54.

Yu D H, Li X H, Bu J N,et al. Diameter-expanding spinning instabilities of thin-walled semi-spherical head at a high thining rate[J].Journal of Plasticity Engineering,2016,23(4):48-54.

[5]陈建华,邓强,马飞,等.大直径薄壁铝合金封头剪切旋压成形研究[J].锻压技术,2016,41(6):38-43.

Chen J H,Deng Q,Ma F,et al. Research on shear spinning for aluminum alloy head with large diameter and thin wall[J].Forging & Stamping Technology,2016,41(6):38-43.

[6]张涛.旋压成形工艺[M].北京：化学工业出版社，2009.

Zhang T.Spinning Forming Process[M].Beijing:Chemical Industry Press，2009.

[7]于辉,刘帅帅,刘利刚,等. TA17钛合金热力学行为及加工特性研究[J]. 稀有金属,2017,14(1):1-7.

Yu H,Liu S S,Liu L G, et al. Hot mechanical behavior and deformability of TA17 titanium alloy[J].Chinese Journal of Rare Metals,2017,14(1):1-7.

[8]Mori K I,Ishiguro M, Isomura Y.Hot shear spinning of cast aluminium alloy parts[J].Journal of Materials Processing Technology,2009,209(7):3621-3627.

[9]Zhan M,Yang H,Guo J,et al.Review on hot spinning for difficult-to-deform lightweight metals[J]. Transactions of Nonferrous Metals Society of China,2015,25(6):1732-1743.

[10]Wong C C,Lin J,Dean T A.Effects of roller path and geometry on the flow forming of solid cylindrical components[J].Journal of Materials Processing Technology,2005,167(2-3):344-353.

[11]常海平,李昌海,万奇亮,等.感应加热在铸旋铝合金车轮中的应用[J].精密成形工程,2016，8(2):72-75.

Chang H P,Li C H,Wan Q L,et al.Application of induction heating in spin casting aluminum alloy wheel[J].Journal of Netshape Forming Engineering,2016,8(2):72-75.

[12]张恒大.月球车钛合金轮圈的热旋压成形工艺研究[D].哈尔滨：哈尔滨工业大学,2006.

Zhang H D. Hot Spinning Process of Titanium Alloy Collar Rim of Luner Rover[D]. Harbin：Harbin Institute of Technology,2006.

[13]贾英辉.管件端部收口热旋压时的数值模拟及工艺参数的确定[D]. 阜新：辽宁工程技术大学,2008.

Jia Y H. Numerical Simulation and Parameters Determined on Pipe End Necking of Hot Spinning[D]. Fuxin：Liaoning Technical University, 2008.

[14]杜军.难变形金属热强旋成形方法研究[D]. 广州：华南理工大学,2015.

Du J. Research on Forming Method of Difficult-to-deform Metal in Power Spinning[D]. Guangzhou: South China University of Technology,2015.

[15]袁静兰,张有忱,谭晶,等.非接触式电磁感应加热及其应用[J].工业加热,2016,45(3):33-37.

Yuan J L,Zhang Y C,Tan J,et al.Non-contacting electromagnetic induction heating and industrial applications[J].Heating,2016,45(3):33-37.

[16]邓魁英,王毅.火箭动特性的缩比模型及建模分析[J].导弹与航天运载技术,2003，(3):6-12.

Deng K Y,Wang Y. Studies on the scaled model and mathematical model for the overall dynamic characteristics of launch vehicle[J].Missiles and Space Vehicles,2003,(3):6-12.

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