Transactions of Materials and Heat Treatment

Title：Wear analysis and optimization on hole extrusion punch for automotive oil pipe bolt

Authors： Zhang Haiyan

Unit： Intelligent Manufacturing College Zhanjiang University of Science and Technology

KeyWords： oil pipe bolt hole extrusion J-C constitutive equation punch structure surface coating technology

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2024,49(4):41-47

Abstract：

Aiming at the problems of heavy force and serious surface wear of extrusion punch during the forming of automotive oil pipe bolt hole, the forming process of hole extrusion for oil pipe bolt was numerically simulated by Deform-3D software to predict and optimize the wear condition on the surface of punch. Then, the mechanical properties of raw material for oil pipe bolt (40CrNiMoA steel) at room temperature were studied, and J-C constitutive equation was obtained by fitting, which provided guarantee for the accuracy of simulation test results. Furthermore, the change laws of hardness and wear coefficient of punch material (M2 steel) and coating material (TiAlN) at different temperatures were studied, and a reliable wear model was established. By comparing the wear, force and temperature change of three kinds of punches with different structures, the punch structure which was more conducive for metal flow was determined. Finally, the influence of surface coating technology on the surface wear of various punches was studied, and the service lives of punches were predicted. The results show that the cone punch has the best effect and the longest service life, and the service life of punch is increased to 2.08 times of the original punch after the coating treatment.

Funds：

作者简介：张海燕（1983-），女，学士，高级讲师 E-mail：zhanghaiyan0283@163.com

Reference：

[1]王敏.基于DEFORM-3D汽车球头销冷挤压成形工艺研究[J].机床与液压,2018,46(16):1-6.

Wang M.Study on cold extrusion forming technology of automobile ball head pin based on DEFORM-3D[J].Machine Tool & Hydraulics,2018,46(16):1-6.

[2]陈永强,陈玉,杨群.SCM435合金钢接头的冷镦工艺研究与数值模拟[J].锻压技术,2022,47(11):28-35.

Chen Y Q,Chen Y,Yang Q.Research and numerical simulation on cold heading process of SCM435 alloy steel joint[J].Forging & Stamping Technology,2022,47(11):28-35.

[3]王培安,吴淑芳,苗润忠,等.基于正交试验的活塞销挤压成形工艺研究及模具磨损分析[J].铸造技术,2018,39(3):715-719，722.

Wang P A,Wu S F,Miao R Z,et al. Research on piston pin extrusion process based on orthogonal test and analysis of mold wear[J].Foundry Technology,2018,39(3):715-719，722.

[4]赵霞,王霄.基于数值模拟驱动的斜花齿零件冷挤压成形工艺参数优化[J].机械设计与制造工程,2021,50(4):17-20.

Zhao X,Wang X.Process parameters optimization of cold extrusion forming for the oblique tooth parts based on numerical simulation driving[J].Machine Design and Manufacturing Engineering,2021,50(4):17-20.

[5]张东民,朱景秋,周伟民,等.拉铆套冲孔成形模具磨损分析及工艺参数优化[J].热加工工艺,2020,49(3):119-123.

Zhang D M,Zhu J Q,Zhou W M,et al.Wear analysis and process parameter optimization of punching of riveting sleeve[J].Hot Working Technology,2020,49(3):119-123.

[6]王晓伟.基于有限元分析的汽车十二角半轴螺母冷镦工艺开发与应用[J].塑性工程学报,2023,30(7):62-70.

Wang X W.Development and application of cold upsetting process for automobile twelve corner half axle nut based on finite element analysis[J].Journal of Plasticity Engineering,2023,30(7):62-70.

[7]薛勇,杜玥,于建民,等.内六方通孔圆柱螺栓精密冷挤压成形工艺研究[J].塑性工程学报,2017,24(2):99-104.

Xue Y,Du Y,Yu J M,et al.Precision cold extrusion process of internal hexagon hollow bolt[J].Journal of Plasticity Engineering,2017,24(2):99-104.

[8]姜天亮,龚红英,赵小云,等.基于DEFORM-3D的花键轴坯料结构尺寸优化设计[J].塑性工程学报,2020,27(6):111-115.

Jiang T L,Gong H Y,Zhao X Y,et al.Optimum design of spline shaft blank structure dimension based on DEFORM-3D[J].Journal of Plasticity Engineering,2020,27(6):111-115.

[9]范建祥,程道来,倪伟豪.基于正交试验汽车六角螺母冷挤压模具磨损规律分析及优化[J].铸造技术,2018,39(4):929-932.

Fan J X,Chen D L,Ni W H.Process analysis and optimization on die wear in cold extrusion for vehicle hex nut[J].Foundry Technology,2018,39(4):929-932.

[10]王培安,吴淑芳,郭欢欢.前筒挤压成形方案分析与参数优化[J].西华大学学报：自然科学版,2019,38(3):32-42.

Wang P A,Wu S F,Guo H H.Analysis and parameter optimization of extrusion forming process of the front tube[J].Journal of Xihua University：Natural Science Edition,2019,38(3):32-42.

[11]王运,张昌明,张昱.航空Al7050合金的静动态力学特性研究及JC本构模型构建[J].材料导报,2021,35(10):10096-10102.

Wang Y,Zhang C M,Zhang Y.Study on static and dynamic mechanical properties of aviation Al7050 alloy and construction of JC constitutive model[J].Materials Reports,2021,35(10):10096-10102.

[12]胡建军,李小平.Deform-3D塑性成形CAE应用教程[M].北京:北京大学出版社,2011.

Hu J J,Li X P.Deform-3D Plastic Forming CAE Application Tutorial[M].Beijing:Peking University Press,2011.

[13]闫培泽.基于有限元模拟的汽车专用异形螺母冷镦缺陷分析与改进[J].锻压技术,2022,47(12):21-26.

Yan P Z.Analysis and improvement on cold heading defect of special-shaped nuts for automobile based on finite element simulation[J].Forging & Stamping Technology,2022,47(12):21-26.

[14]张东民,吕雷雷,朱景秋,等.锁紧座冷成形模具磨损分析与参数优化[J].热加工工艺,2020,49(7):119-122.

Zhang D M,Lyu L L,Zhu J Q,et al.Wear analysis and parameter optimization of cold forming die for locking seat[J].Hot Working Technology,2020,49(7):119-122.

Service：

【This site has not yet opened Download Service】【Add Favorite】