锻压技术

CuNi90/10铜合金高颈法兰精辗成形数值模拟与试验研究

英文标题：Numerical simulation and test study on precision rolling of CuNi90/10 copper alloy for high neck flange

作者：郑丛芳杨青云周铁柱马俊普郁炎

分类号：TG146.1

出版年,卷(期):页码：2023,48(3):132-138

摘要：

高颈法兰的颈部高度和底盘外径大，采用锻造后机加工的方法制作生产效率较低。为提高生产效率，通过对现有辗环工艺进行分析，借助有限元软件建立了高颈法兰精辗模型，并对典型规格的外径Φ159 mm的高颈法兰轧制成形过程进行了仿真分析，研究了驱动辊转速、芯辊进给速度、毛坯形式对高颈法兰轧制成形过程的影响。结果表明：增加驱动辊转速与芯辊进给速度可以减少轧制缺陷，同时采用锥形内孔可以避免内孔产生蝶型缺陷。最终确定了法兰内孔形式为锥形内孔、驱动辊转速ω=5 rad·s-1、芯辊径向进给速度V=3 mm·s-1。最后设计配套模具进行试验验证，完成了典型规格高颈法兰的产品试制，验证了高颈法兰碾环成形工艺的可行性。

The neck height and the outer diameter of chassis for high neck flange are large, and the production efficiency is low by the method of machining after forging. Therefore, in order to improve the production efficiency, through the analysis on the existing ring rolling process, the precision rolling model of the high neck flange was established by finite element software, and the rolling process of the high neck flange with an typical specification of the outer diameter of Φ159 mm was simulated and analyzed. Then, the influences of rotation speed of drive roller, feeding speed of core roller and blank forms on the rolling process of the high neck flange were investigated. The results show that increasing the rotation speed of drive roller and the feeding speed of core roller can decrease rolling defects, and the use of tapered inner hole can avoid butterfly defects in the inner hole. Finally, the inner hole form of flange is determined as a tapered inner hole, and the rotation speed of drive roller ω=5 rad·s-1 and the feeding speed of core roller V=3 mm·s-1. Furthermore, a supporting die is designed for test verification, and the trial production of the high neck flange with typical specification is completed to verify the feasibility of the high neck flange rolling process.

基金项目：

国家重点研发计划项目（2021YFB3700700）

作者简介：郑丛芳(1984-)，女，硕士，工程师 E-mail：lindy-fangfang@163.com

参考文献：

[1]张智强，郭泽亮，雷竹芳.铜合金在舰船上的应用[J].材料开发与应用,2006,21(5):43-46.

Zhang Z Q，Guo Z L，Lei Z F. Applications of copper alloy in shipbuilding[J].Development and Application of Materials,2006,21(5):43-46.

[2]周铁柱，马艳霞，蒋鹏,等. 铜合金弯头冷推成形影响因素分析及工艺参数优化[J].材料开发与应用,2018,33(2):38-46.

Zhou T Z，Ma Y X，Jiang P，et al. Influencing factors and parameters optimization of cold push-bending for copper alloy elbow[J]. Development and Application of Materials,2018,33(2):38-46.

[3]梁晨，周铁柱，刘乐乐,等. 铜合金三通内高压成形工艺优化探究[J].材料开发与应用,2018,33(5):74-79.

Liang C，Zhou T Z，Liu L L，et al. Research on the optimization of internal pressure forming process for copper-nickel alloy tee[J]. Development and Application of Materials,2018,33(5):74-79.

[4]周铁柱，张志远，马艳霞,等.沉积铜箔用阴极辊钛环轧制驱动辊转速研究[J].材料开发与应用,2017,32(3):39-45.

Zhou T Z，Zhang Z Y，Ma Y X，et al. Research on rotation speed of driving roll in the rollig of titanium ring used for electrodeposited copper foil[J] . Development and Application of Materials,2017,32(3):39-45.

[5]肖旻. 高颈法兰封闭轧制成形关键技术研究[D]. 宁波: 宁波大学,2012.

Xiao M.Research on the Key Technologies of High Neck Flange Forming with Closed Ring Rolling Technology[D].Ningbo:Ningbo University,2012.

[6]华林, 韩星会.环件轧制和摆动碾压精密成形技术[J].精密成形工程, 2009,1(1):21-26.

Hua L,Han X H.Precision forming technologies of ring rolling and rotary forging[J].Journal of Netshape Forming Engineering,2009,1(1):21-26.

[7]王志慧. 环件轧制技术现状和发展[J].机械制造,2003,(9):31-33.

Wang Z H.Statusquo and development of ring rolling technology[J].Machinery,2003,(9):31-33.

[8]张保军，杨合，郭良刚．基于虚拟正交试验的Inconel690合金大口径壁厚管挤压工艺仿真[J]．稀有金属材料与工程,2013,42(3)488-493.

Zhang B J，Yang H，Guo L G. Virtual orthogonal experiment study on needle piercing extrusion process of Inconel690 alloy large-diameter thick-walled tube[J].Rare Metal Materials and Engineering,2013,42(3)488-493.

[9]肖旻，束学道，孙宝寿. 高颈法兰封闭轧制成形的数值模拟研究[J]. 现代制造工程，2012,(4):14-16.

Xiao M，Shu X D，Sun B S. Numerical simulation research on high-neck flange closed ring rolling[J]. Modern Manufacturing Engineering，2012,(4):14-16.

[10]EEMUA234—2016，90/10 Copper nickel alloy piping for offshore applications specification(Incorporation EEMUA144,145 and 146)[S].

[11]庞国华，刘援朝，孙康宁，等. 高颈法兰成形新工艺的研究[J].轧钢，1994,(1):21-24.

Pang G H，Liu Y C，Sun K N，et al. Study on the new forming technology of high-neck flange[J]. Steel Rolling, 1994,(1):21-24.

[12]冷纪桐. 有限元技术基础[M].北京：化学工业出版社，2007.

Leng J T.Finite Element Technology[M].Beijing:Chemical Industry Press,2007.

[13]Lin T,Pillinger I,Hartley P. Afinite-element simulation of profile ring rolling using a hybrid mesh model[J].Journal of Materials Processing Technology,1998,80:199-205.

[14]华林. 轧环机工作参数理论设计[J].锻压装备与制造技术，2000,(2):8-10.

Hua L. Theoretical design of working parameters of ring rolling mill[J].China Metalforming Equipment & Manufacturing Technology，2000,(2):8-10.

[15]杨文兵，姜海峰.基于DEFORM环件轧制塑性成形过程数字仿真[J].土木工程与管理学报，2006,(2):56-58.

Yang W B，Jiang H F. Numerical simulate of ring rolling deforming process based on DEFORM[J].Journal of Civil Engineering and Management, 2006,(2):56-58.

[16]于华民, 董方,吴运新,等. 大型铝合金C形截面环轧制过程数值模拟和轧制区成形规律分析[J]. 锻压技术,2021,46(11):197-206.

Yu H M，Dong F，Wu Y X，et al.Numerical simulation on rolling process and analysis on rolling zone forming law for large aluminum alloy C-shaped cross-section ring[J]. Forging & Stamping Technology，2021,46(11):197-206.

服务与反馈：

【文章下载】【加入收藏】