锻压技术

连接杆的冲锻连续成形工艺

英文标题：Stampingforging progressive forming process of connecting rod

作者：杨程梁凡杨欣怡张庆辉刘学林谢晓东

关键词：连接杆锥形孔台阶孔冲锻连续模

分类号：TG316

出版年,卷(期):页码：2018,43(6):20-23

摘要：

为了解决滑撑组件连接杆采用连续模冲锻成形时，小凸模磨损严重、易折断或啃刃的问题，采用有限元方法分析了连接杆的冲锻连续成形工艺，发现成形锥形孔和台阶孔时多余的材料沿杆件长度方向流动使得杆件伸长，这种伸长变形使前序冲孔和后序修孔的小凸模承受较大的侧向力，导致小凸模寿命低、制件尺寸精度超差。提出了一种基于疏导法和隔离法的连接杆连续冲锻工艺，降低了压锥形孔和台阶孔工序的工序件伸长对成形的影响，使得新的连续模近似变成单工序模。实践结果表明，使用该方法可获得尺寸合格的零件，小凸模未再发生折断或啃刃现象，寿命大幅提升。

In order to solve the problem of severe wear, easy break or broken edges of punch in the stampingforging forming of connecting rod with progressive die, the forming process was analyzed by the finite element method, and it was found that the redundant metal flowed along the longitudinal direction to elongate the connecting rod when taper hole and stepped hole were forged, which gave a lateral force to the punch of piercing and shaving hole，and resulted in lower life of punch and oversized dimension of the part. Furthermore, a stampingforging progressive forming process of connecting rod was put forward based on grooming and isolation method, and the influences of the elongation of working part during forging taper hole and step hole were reduced，which made the new progressive die be similar to the single die. The experiment result shows that the qualified parts can be got by above method, the rupture and broken edges of the small punch do not occur，and the punch life is improved significantly.

基金项目：

陕西省教育厅专项（16JK1462）；陕西省耐磨材料工程技术研究中心专项（2016NMZX07）

杨程（1976-），男，博士，副教授；Email：yang.cheng@stu.xjtu.edu.cn

参考文献：

［1］王可胜, 周林, 李尚荣. 金属板料台阶孔冲锻成形工艺研究
［J］. 模具工业, 2010, 36(6): 39-41.

Wang K S, Zhou L, Li S R. Press forging process for step holes of metal sheets
［J］. Die & Mould Industry, 2010, 36(6): 39-41.

［2］李湖峰, 卢险峰, 章跃荣. 薄板件台阶孔 FCF 加工法的压边条件研究
［J］. 锻压技术, 2008, 33(2): 38-41.

Li H F, Lu X F, Zhang Y R. Research on blank holder condition of FCF process for stepped-hole of sheet metal
［J］. Forging & Stamping Technology, 2008, 33(2): 38-41.

［3］闫华军, 邵明杰, 张双杰, 等. 连杆冲压工艺分析及结构设计
［J］. 锻压技术, 2017, 42(6): 56-60.

Yan H J, Shao M J, Zhang S J, et al. Stamping process analysis and structural design of connecting rod
［J］. Forging & Stamping Technology, 2017, 42(6): 56-60.

［4］闫华军, 臧其其, 刘玉忠, 等. 连接件级进模排样及模具结构设计
［J］. 锻压技术, 2017, 42(7):107-111.

Yan H J, Zang Q Q, Liu Y Z, et al. Layout and structure design on progressive die for connector
［J］. Forging & Stamping Technology, 2017, 42(7):107-111.

［5］郭雷,黄珍媛,阮锋. 接触端子精密级进模设计
［J］. 模具工业, 2007, 33(2): 11-14.

Guo L, Huang Z Y, Ruan F. Development of precision high speed stamping progressive die for contact terminal
［J］. Die & Mould Industry, 2007, 33(2): 11-14.

［6］姜立忠, 张建营, 周耀东, 等. 汽车结构件多工位精密级进模排样及模具设计
［J］. 锻压技术, 2009, 34(3): 41-43.

Jiang L Z, Zhang J Y, Zhou Y D, et al. Layout and design of multiposition precision progressive die for automotive structural part
［J］. Forging & Stamping Technology, 2009, 34(3): 41-43.

［7］李小勇. 多工位级进模冲压载体形式对成形精度的影响
［D］. 重庆: 重庆大学, 2007.

Li X Y. Research on Influence of Sheet Carrier on Stamping Process of MultiPosition Progressive Die
［D］. Chongqing: Chongqing University, 2007.

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