锻压技术

不等径阀体的多向模锻生产工艺

英文标题：Multi-ram forging process for unequal diameter valve body

作者：徐文翠宋昌哲

分类号：TG316.3

出版年,卷(期):页码：2018,43(7):121-128

摘要：

针对一种不等径阀体的几何特点和性能要求，设计了两种多向模锻成形方案。采用Deform-3D有限元模拟软件对两种方案的成形过程进行了模拟，在锻件成形载荷、温度场、等效应变场、成形质量方面进行了对比分析。模拟结果表明，两种成形工艺对锻件成形载荷、温度场及等效应变场影响不大，但对锻件成形质量有显著影响，方案1成形锻件存在端面折叠及纵向飞边缺陷，方案2锻件成形质量良好。因此，根据模拟分析将方案2在40 MN多向模锻生产线上进行生产验证。结果显示，金属材料流动性好，锻件填充饱满，锻件3个法兰面和凸台面的成形质量良好，无折叠、纵向飞边等缺陷，与模拟分析结果吻合。

According to the geometric characteristics and performance requirements of an unequal diameter valve body, two kinds of multi-ram forging schemes were designed. Then, the forming processes of two schemes were simulated by FE software Deform-3D, and the forming load, temperature field, equivalent strain field and forming quality of forging were compared and analyzed. The simulation results show that two forming technologies have little effect on the forming load, temperature field and equivalent strain field of forging, but they have a significant effect on the forming quality of forging. Furthermore, there is end-face folding and longitudinal flash defects in the formed forging of scheme 1, and the forming quality of forging is fine in scheme 2. Thus, according to the simulation result, scheme 2 is tested and verified on the 40 MN multi-ram forging production line. The results show that the metal material has good fluidity, the forging is fully filled, and the forming quality of three flanges and convex surfaces of forging are good without folding and longitudinal flash. The results are in good agreement with the simulation results.

基金项目：

“高档数控机床与基础制造装备”科技重大专项-大型多向模锻制造共性技术研究（2012ZX04010082）

徐文翠（1988-），女，学士，工程师，E-mail：xuwencui121@163.com

参考文献：

[1]胡福生，张磊，林峰. 大口径阀门阀体多向模锻成形的模具优化设计[J]. 清华大学学报：自然科学版，2016， 56(6)：646-649，655.

Hu F S，Zhang L，Lin F. Optimal design of a multi-ram forging mold for largediameter valve bodies. [J]. Journal of Tsinghua University：Science and Technology，2016，56(6)：646-649,655.

[2]郑彬彬，董传勇，薛克敏，等. 三通阀体多向模锻工艺研究[J]. 精密成形工程，2010, 2(5)：61-63.

Zheng B B, Dong C Y, Xue K M, et al. Study on multi-ram forging process of triplevalve body[J]. Journal of Net Shape Forming Engineering, 2010,2(5)：61-63.

[3]任运来，聂绍珉，苗雅丽. 多向模锻技术的发展及应用[J]. 重型机械，2014, (4): 1-8.

Ren Y L，Nie S M，Miao Y L. Development and application of multi-ram forging technology[J]. Heavy Machinery，2014, (4): 1-8.

[4]徐吉生. 等径三通多向模锻金属流动研究[J]. 锻压技术，2002，27（4）:11-14.

Xu J S. Study on metal flow in multi-ram forging process of equal diameter tee joint[J]. Forging & Stamping Technology，2002，27（4）:11-14.

[5]胡红磊. 水平带法兰阀体多向模锻工艺研究[D].秦皇岛：燕山大学，2015.

Hu H L. Study on Multiple-ram Forging Process of Level Flanged Valve[D]. Qinhuangdao：Yanshan University，2015.

[6]任运来，曹峰华，任杰，等. 水平带法兰三通阀体多向模锻工艺研究[J]. 上海电机学院学报，2015, 18（5）：249-254.

Ren Y L，Cao F H，Ren J，et al. Multi-ram die forging process of triple-valve body with horizontal flange[J]. Journal of Shanghai Dianji University，2015,18（5）：249-254.

[7]张家伟.带主法兰三通阀体多向模锻成形工艺研究[D].秦皇岛：燕山大学，2015.

Zhang J W. Research on Multi-ram Forging Forming Process of Triple-valve Body with Main Flange[D]. Qinhuangdao：Yanshan University，2015.

[8]周凌华，康明敏，李锡娟. 复杂阀体的多向模锻工艺[J]. 锻压技术，2017, 42(12)：11-12.

Zhou L H，Kang M M，Li X J. Closed muti-direction mold forging process of complex valve body[J]. Forging & Stamping Technology，2017, 42(12)：11-12.

[9]GB/T 12362—2003，钢质模锻件公差及机械加工余量[S].

GB/T 12362—2003，Steel die forgings—Tolerance and machining allowance[S].

[10]GB/T 12361—2003，钢质模锻件通用技术条件[S].

GB/T 12361—2003，Steel die forgings—General specification[S].

[11]夏巨谌. 中国模具工程大典：第5卷锻造模具设计[M]. 北京：电子工业出版社，2007.

Xia J C. China Die & Mould Engineering Canon: Vol.5 Forging Die Design[M]. Beijing：Publishing House of Electronics Industry，2007.

[12]陈雷，裴建明，郭晓敏，等. 大口径厚壁管热挤压过程中晶粒组织均匀性数值模拟[J]. 塑性工程学报，2017, 24(4)：103-109.

Chen L，Pei J M，Guo X M，et al. Numerical simulation on homogeneity of grain structure for large diameter and thick wall pipes during hot extrusion process [J]. Journal of Plasticity Engineering，2017, 24(4)：103-109.

[13]郭炜，王德，陆德平，等. 循环闭式模锻工艺的数值模拟[J]. 锻压技术，2017, 42(1)：149-154.

Guo W，Wang D，Lu D P，et al. Numerical simulation on cyclic closeddie forging technology [J]. Forging & Stamping Technology，2017, 42(1)：149-154.

服务与反馈：

【文章下载】【加入收藏】