锻压技术

平顶链链板卷圆冲压成形模具的设计与仿真

英文标题：Design and simulation on roll-round stamping die for flat-top chain plate

分类号：TP385.2

出版年,卷(期):页码：2022,47(12):175-181

摘要：

为提高平顶链链板卷圆工序的成形精度，根据工艺要求设计了一套平顶链链板卷圆冲压成形模具，该模具的上、下模均采用拼接式结构，上、下模间设有校孔装置，对该模具的关键参数进行了初步设计。利用Abaqus软件对链板的卷圆成形过程进行仿真，分析链板所受的等效应力及其成形精度，并根据仿真结果，对模具的关键参数进行修正。仿真结果表明：工件所受的最大等效应力位于链板左右两侧形成的卷圆处，符合链板卷圆成形的实际受力情况；且当卷圆销孔上模的圆角半径为6.12 mm、铰孔上模的圆角半径为6.35 mm、销孔下模的圆角半径为6.14 mm、铰孔下模的圆角半径为6.28 mm时，仿真后的链板的成形精度高。最后，制作模具样机并进行卷圆冲压成形实验。结果表明，卷圆冲压成形后工件的合格率达到98%。

In order to improve the forming accuracy of roll-round process for flat-top chain plate, a set of roll-round stamping die for flat-top chain plate was designed according to the process requirements. Then, both the upper and lower dies adopt a spliced structure, a hole sizing device was installed between the upper and lower dies, and the key parameters of the die were preliminarily designed. Furthermore, the simulation of the roll-round forming process for chain plate was carried out by software Abaqus, and the equivalent stress and the forming accuracy of chain plate were analyzed. According to the simulation results, the key dimensions of the die were modified. The simulation results show that the position of the maximum equivalent stress on the workpiece is at the coiled circles formed on the left and right sides of the chain plate, which is in line with the actual stress situation of the roll-round forming for chain plate. When the fillet radiuses of upper die for roll-round pin hole and sizing hole are 6.12 and 6.35 mm, respectively, and the fillet radiuses of lower die for pin hole and sizing hole are 6.14 and 6.28 mm, respectively, the simulated chain plate has higher forming accuracy. Finally, the die prototype was made, and the roll-round stamping experiments were carried out. The results show that the qualified rate of workpiece after the roll-round forming is 98%.

基金项目：

安徽省重点研究与开发计划项目(202004a05020008)

汪永明（1971-）,男，博士，教授 E-mail：wangym@ahut.edu.cn

参考文献：

[1]李光耀, 王琥, 杨旭静, 等. 板料冲压成形工艺与模具设计制造中的若干前沿技术[J]. 机械工程学报, 2010, 46(10):31-39.

Li G Y, Wang H, Yang X J, et al. Some new topics on process design and mould manufacture for sheet metal forming [J]. Journal of Mechanical Engineering, 2010, 46 (10): 31-39.

[2]Ai S, Lu B, Chen J，et al. Evaluation of deformation stability and fracture mechanism in incremental sheet forming[J]. International Journal of Mechanical Sciences, 2017, 124-125:174-184.

[3]Yanamundra K K, Karthikeyan R, Naranje V. Finite element simulation and experimental verification of incremental sheet metal forming [J]. IOP Conference Series: Materials Science and Engineering, 2018, 346（1）:1-12.

[4]窦晓霜. 中央通道超高强钢热成型工艺参数及回弹控制研究[D]. 长沙：湖南大学，2018.

Dou X S. Research on Hot Forming Process Parameters and Springback Control of Ultra-high Strength with Steel Central Channel [D]. Changsha: Hunan University, 2018.

[5]李栓柱. 板管式板片冲压成型的数值模拟及分析[J]. 制造业自动化，2019，41(6)：27-29,53.

Li S Z. Numerical simulation and analysis of plate tube sheet stamping forming[J]. Manufacturing Automation, 2019，41(6):27-29, 53.

[6]Bessam Zeramdini, Camille Robert, Guenael Germain, et al. Numerical simulation of metal forming processes with 3D adaptive Remeshing strategy based on a posteriori error estimation[J]. International Journal of Material Forming, 2019, 12(3):411-428.

[7]Kumar S, Hariharan K, Digavalli R. Hybrid optimization of die design in constrained groove pressing[J]. Materials and Manufacturing Processes: Special Issue on Genetic Algorithm， 2020，35(6): 687-699.

[8]Shanbhag V V, Rolfe B F, Arunachalam N, et al. Investigating galling wear behaviour in sheet metal stamping using acoustic emissions[J]. Wear, 2018, 414: 31-42.

[9]Dhinesh K S, Subhasankari T, Paneerselvam T，et al. Simulation and numerical analysis of warm stamping (AA6061) [J]. Materials Today: Proceedings，2019，16（2）: 598-603.

[10]张新颖, 余天明, 栗彬琦, 等. 侧围外板冲压成形仿真及影响因素分析[J]. 汽车工艺与材料, 2021,(8):61-65.

Zhang X Y, Yu T M, Li B Q, et al. Simulation and influence factors analysis of side panel stamping[J]. Automobile Technology & Material, 2021,(8): 61-65.

[11]张华伟, 李博宏. 基于ABAQUS的碳纤维复合材料板热冲压成形仿真[J]. 合成纤维工业, 2019, 42(2):16-20.

Zhang H W, Li B H. Hot simulation of thermal stamping formation process of carbon fiber composite sheet based on ABAQUS [J]. Synthetic Fiber Industry, 2019, 42 (2): 16-20.

[12]Gmyrek Z, Cavagnino A, Ferraris L. Estimation of the magnetic properties of the damaged area resulting from the punching process: Experimental research and FEM modeling[J]. IEEE Transactions on Industry Applications, 2013, 49(5):2069-2077.

[13]陈泽中, 李响, 刘欢, 等. 基于Dynaform的SUV汽车B柱热冲压成形仿真分析与工艺研究[J].塑性工程学报, 2019,26(4):113-119.

Chen Z Z, Li X, Liu H, et al. Simulation analysis and process research of hot-stamped SUV B-pillar based on Dynaform [J]. Journal of Plastic Engineering, 2019,26 (4): 113-119.

[14]李存利. 热处理工艺对2Cr13不锈钢组织影响及性能研究[D]. 西安: 长安大学, 2019.

Li C L. Effect of Heat Treatment Process on Microstructure and Properties of 2Cr13 Stainless Steel[D]. Xi′an: Chang′an University, 2019.

[15]谭淞年, 李全超, 张洪伟, 等. 某航空光电稳定平台方位框架设计和分析[J]. 应用光学, 2016, 37(3): 327-331.

Tan S N, Li Q C, Zhang H W, et al. Design and analysis of azimuth-gimbal in aerial opto-electronic stabilization platform [J] Journal of Applied Optics, 2016, 37 (3): 327-331.

[16]Soranansri P, Yanil S, Sirivedin K. Finite element modeling of shrink-fit design for improvement of die-service life in hot forging process of a bevel gear[J]. Materials Today: Proceedings, 2019, 17:1711-1719.

[17]翁齐星. 链板卷圆工艺及其模具[J]. 金属加工:热加工, 1998, (6): 5-6.

Weng Q X. Chain plate rounding process and its die [J]. MW Metal Forming, 1998,(6): 5-6.

[18]张霞, 王新荣, 李小海. 冲压模具凸凹模间隙控制与调整方法研究[J]. 机械研究与应用, 2008,(2):47-49.

Zhang X, Wang X R, Li X H. Study on methods of controlling and adjusting clearance between the male die and the female die [J]. Mechanical Research & Application, 2008,(2): 47-49.

服务与反馈：

【文章下载】【加入收藏】