锻压技术

基于Archard理论的汽车板件热冲压模具磨损分析

英文标题：Wear analysis on hot stamping die for automobile panel based on Archard theory

作者：郑小慧

单位：新乡职业技术学院

分类号：TG386.3

出版年,卷(期):页码：2021,46(11):150-154

摘要：

以某汽车板件为研究对象，基于Archard磨损及塑性成形理论，采用DEFORM3D软件对板件的热冲压成形过程进行了热力耦合仿真，模拟了模具表面的磨损情况。通过分析可知，凹模磨损远大于凸模磨损，寿命较短，并根据模拟结果讨论了影响凹模磨损的关键因素。在保证冲压板件质量及维持凸模磨损的前提下，以降低凹模表面磨损为目标，通过正交试验法研究了各因素对凹模工作表面磨损深度的影响关系并进行了优选。对获得的最优参数组合进行仿真模拟及实际试模，并与优化前结果进行了对比。结果表明，优化后凹模磨损与实际试模结果较为接近，与优化前凹模磨损结果相比得到明显改善。最优参数组合为：模具预热温度为350 ℃，坯料初始温度为500 ℃，冲压速度为15 mm·s-1，凹模硬度为64 HRC。采用有限元仿真技术能够有效地指导设计，降低试模成本。

For a certain automobile panel, based on the theories of Archard wear and plastic forming, the thermo-mechanical coupling simulation for hot stamping process of plate was conducted by software DEFORM-3D, and the wear condition of die surface was simulated. Through analysis, it is found that the die wear is much larger than that of the punch, and the service life is shorter. According to the simulation results, the key factors affecting the die wear were discussed. On the premise of ensuring the quality of stamping panel and maintaining the wear of punch, taking the reduction of the surface wear of die as object, the influences of various factors on the wear depth of die working surface were studied by orthogonal test method, and the optimization was carried out. In addition, the optimal combination of parameters was simulated and tested, and compared with the results before optimization. The results show that the optimized die wear results are close to the actual die test results and are significantly improved compared with the results before optimization, and the optimal combination of parameters is as follows: the die preheating temperature is 350 ℃, the billet initial temperature is 500 ℃, the stamping speed is 15 mm·s-1 and the die hardness is 63 HRC. Thus, the finite element simulation technology can effectively guide the design and reduce the cost of die test.

基金项目：

河南省高等职业院校创新发展项目（RW-28）

作者简介：郑小慧（1986-），女，学士，讲师，E-mail：xixisheng147@126.com

参考文献：

[1]吴艳云, 张东民,盛育东,等.SCM435合金钢紧固件精冲过程的数值模拟及参数优化[J].中国科技论文,2018,13(4):474-477.

Wu Y Y,Zhang D M,Sheng Y D,et al.Numerical simulation and parameter optimization of the fine blanking process of SCM435 alloy steel[J].China Sciencepaper,2018,13(4):474-477.

[2]门超, 徐晓东.支撑板冲压成形模具磨损分析及优化[J].锻压技术,2020,45(3):131-136.

Men C,Xu X D.Wear analysis and optimization of stamping die for support plate[J].Forging & Stamping Technology,2020,45(3):131-136.

[3]陆元三, 王培安,郭欢欢.挤压次数对端盖凸模磨损的失效模拟研究[J].材料保护,2020,53(1):96-100，119.

Lu Y S,Wang P A,Guo H H.Failure simulation of extrusion times on endface punch wear[J].Materials Protection,2020,53(1):96-100，119.

[4]王全民. 冲压模具寿命的分析及提高[J].机电工程技术,2020,49(1):134-136.

Wang Q M.Analysis and improvement of stamping die life[J].Mechanical & Electrical Engineering Technology,2020,49(1):134-136.

[5]聂昕, 宁敏清,乔晓勇.基于动态模型的冲压模具磨损寿命研究[J].中国公路学报,2018,31(3):133-141.

Nie X,Ning M Q,Qiao X Y.Research on stamping die wear life based on dynamic model[J].China Journal of Highway and Transport,2018,31(3):133-141.

[6]梁森. 基于Deform的锌合金冲模零件磨损特性研究[J].模具工业,2019,45(10):17-23.

Liang S.Research on wear characteristics of zinc alloy stamping die based on Deform[J].Die & Mould Industry,2019,45(10):17-23.

[7]熊英超, 夏琴香,叶福源,等.多工位级进模冲裁工序模具磨损行为的数值分析及寿命预测[J].精密成形工程,2017,9(3):89-93.

Xiong Y C,Xia Q X,Ye F Y,et al.Numerical analysis and life prediction of die wear behavior in multiposition progressive die blanking[J].Journal of Netshape Forming Engineering,2017,9(3):89-93.

[8]谢晖, 李江曼,王诗恩,等.超高强钢板冲压模具磨损CAE分析研究与应用[J].湖南大学学报：自然科学版,2015,42(8):15-21.

Xie H,Li J M,Wang S E,et al.Research and application of die wear CAE analysis of ultra high strength steel stamping[J]. Journal of Hunan University：Natural Sciences,2015,42(8):15-21.

[9]刘鑫. 高强钢热成形过程模具磨损的数值模拟研究[D].吉林：吉林大学,2016.

Liu X.Numerical Simulation Research on Die Wear during the Thermal Process of High Strength Steel[D].Jinlin：Jilin University,2016.

[10]胡军, 陈珏,栗明,等.基于ABAQUS高强度钢热冲压过程数值分析[J].热加工工艺,2013,42(17):79-82.

Hu J,Chen J,Li M,et al.Numerical analysis on hot stamping process of high strength steel sheet based on ABAQUS[J].Hot Working Technology,2013,42(17):79-82.

[11]李嘉伟, 张东民,陈剑.基于正交试验的枞树型轮槽加工切削参数优化[J].工具技术,2018,52(10):98-101.

Li J W,Zhang D M,Chen J.Optimize on cutting parameters of firslot grooves based on orthogonal test[J]. Tool Engineering,2018,52(10):98-101.

[12]谢晖, 凌鸿伟.基于Archard理论的热冲压模具磨损分析及优化[J].热加工工艺,2016,45(1):100-104.

Xie H,Ling H W.Analysis and optimization of hot stamping die wear based on archard theory[J].Hot Working Technology,2016,45(1):100-104.

[13]闫金友. 球头销钉球头成形仿真及优化[J].锻压技术,2019,44(9):88-92.

Yan J Y.Simulation and optimization of ball head forming of ball head pin[J].Forging & Stamping Technology,2019,44(9):88-92.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】