锻压技术

汽车用铝合金结构件冲压模具磨损仿真研究

英文标题：Simulation study on wear of stamping die for aluminum alloy structural parts of automobile

作者：吴亮

单位：广东工贸职业技术学院

分类号：TG306

出版年,卷(期):页码：2021,46(11):155-159

摘要：

针对某铝合金结构件冲模磨损严重的问题，基于Archard 修正模型，采用DEFORM软件对冲压成形过程进行了数值模拟，直观地了解了制件的成形情况及模具的磨损情况，并分析了影响模具寿命的主要因素；其次，通过正交试验手段，研究了压边力、冲压速度、板料加热温度、模具预热温度对模具磨损影响的显著性，并以模具磨损量最小为目标，获得了最优参数组合；最后，基于最优参数组合，经数值模拟及工艺试验可知，模具磨损与初始工艺相比减小了58.8%，模具寿命预测值与模具寿命实际值的误差仅为2.83%，模拟结果准确可行，有效地降低了试模成本。

For the problem of serious wear of stamping die for an aluminum alloy structural part, based on the Archard modified model, the stamping process was numerically simulated by software DEFORM, the forming condition of part and the wear condition of die were intuitively understood, and the main factors affecting the service life of die were analyzed. Then, the significance of the influences of blank holder force, stamping speed, sheet heating temperature and die preheating temperature on the die wear was studied by orthogonal test, and the optimal parameters combination was obtained with the goal of minimizing die wear. Finally, based on the optimal parameters combination, the numerical simulation and process test show that the die wear is reduced by 58.8% compared with the initial process, and the error between the predicted and actual values of die life is only 2.83%. Thus, the simulation results are accurate and feasible, and the cost of die test is effectively reduced.

基金项目：

广东省教育科学“十三五”规划资助项目（2018GXJK304）

作者简介：吴亮（1985-），女，硕士，实验师，E-mail：240694831@qq.com

参考文献：

[1]韩艳艳. 基于FEM的7075铝合金轿车发动机油管接头挤压过程的温度场分析[J].热加工工艺,2013,42(9):140-142，146.

Han Y Y.Analysis of temperature field of 7075 aluminum alloy oil line connector for car engine during extrusion process based on FEM[J].Hot Working Technology,2013,42(9):140-142，146.

[2]Gu R, Liu Q, Chen S, et al. Study on hightemperature mechanical properties and forming limit diagram of 7075 aluminum alloy sheet in hot stamping[J]. Journal of Materials Engineering and Performance, 2019, 28(12):7259-7272.

[3]刘勇, 耿会程,朱彬,等.高强铝合金高效热冲压工艺研究进展[J].锻压技术,2020,45(7):1-12.

Liu Y,Geng H C,Zhu B,et al.Research progress on high efficiency hot stamping process for high strength aluminum alloy[J]. Forging & Stamping Technology,2020,45(7):1-12.

[4]顾瑞瑩. 基于热冲压工艺的7075铝合金板材高温拉伸性能及成形极限研究[D].上海：上海大学,2019.

Gu R Y.Study on Hightemperature Tensile Properties and Forming Limit of 7075 Aluminum Alloy Sheet Based on Hot Stamping[D].Shanghai: Shanghai University,2019.

[5]马闻宇, 王宝雨,周靖,等.铝合金热冲压板件多目标优化[J].哈尔滨工程大学学报,2015,36(9):1246-1251.

Ma W Y,Wang B Y,Zhou J,et al.Multiobjective optimization of hot stamping of aluminum alloy blank[J].Journal of Harbin Engineering University,2015,36(9):1246-1251.

[6]Geng H C, Wang Y L, Wang Z J, et al. Investigation on contact heating of aluminum alloy sheets in hot stamping process[J]. Metals,2019,9(12): 1341-1341.

[7]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 and Mould Industry,2019,45(10):17-23.

[8]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.

[9]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.

[10]梁弘毅. 厚板冲裁的模具磨损有限元模拟及其寿命分析[D].昆明：明理工大学,2017.

Liang H Y.Finite Simulation of Die Wear and Its Life Analysis in Thick Plate Blanking[D].Kuming: Kunming University of Technology,2017.

[11]聂昕, 王成龙.基于动态摩擦因数磨损系数的先进高强钢模具寿命研究[J].汽车工程,2019,41(3):346-353.

Nie X,Wang C L.A study on AHSS die life based on dynamic friction and wear coefficients[J].Automotive Engineering, 2019, 41(3):346-353.

[12]江仲海. 铝合金板料成形极限预测及数值模拟研究[D].长春：吉林大学,2015.

Jiang Z H.Prediction of Aluminum Alloy Sheet Forming Limit and Numerical Simulation[D].Changchun: Jilin University,2015.

[13]王涛, 孙占军,武彩峰.5182铝合金前围板冲压工艺研究[J].汽车实用技术,2020, (8):178-180,193.

Wang T,Sun Z J,Wu C F.Research on stamping process of 5182 aluminum alloy dash panel[J].Automobile Applied Technology,2020, (8):178-180,193.

[14]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 Science Paper,2018,13(4):474-477.

[15]Archard J F. Contact and rubbing of flat surfaces [J]. Journal of Applied Physics，1953，24(8)：981-988.

[16]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.

[17]屈晓晓, 张治民,李国俊,等.基于Archard模型的铝合金盒形件热挤压模具磨损研究[J].热加工工艺,2019,48(9):153-157.

Qu X X,Zhang Z M,Li G J,et al.Research on wear of hot extrusion die of aluminum alloy box parts based on archard model[J].Hot Working Technology,2019,48(9):153-157.

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