锻压技术

基于正交试验的车用螺母成形分析及模具磨损优化

英文标题：Forming analysis and mould wear optimization on nuts for vehicle based on orthogonal test

作者：刘俊英

单位：河源职业技术学院

分类号：TG375

出版年,卷(期):页码：2020,45(2):182-187

摘要：

以某车用锁紧螺母冷镦成形为研究对象，基于Archard磨损理论，采用有限元分析软件DEFORM-3D对模具磨损及成形载荷进行模拟分析。结果表明：制件成形符合工艺要求。为得到更优的成形效果，选取上冲头切入角、冲压速度、模具表面硬度、摩擦系数作为因素，设计正交试验，以降低模具磨损和成形载荷为目标对因素进行优选。分析得出各因素对结果的影响趋势，并通过综合考虑生产效率、能量消耗、设备磨损等因素，得到了最优工艺参数组合为上冲头切入角20°、冲压速度5 mm·s-1、模具表面硬度61 HRC、摩擦系数0.12。采用最优参数重新进行模拟，上冲头使用寿命得到了大幅提升，并予以试模验证。

For the cold upsetting of locking nuts used in vehicle, based on Archard wear theory, the mould wear and forming loads were simulated and analyzed by finite element analysis software DEFORM-3D. The result shows that the forming of parts fully meets the requirements of process. In order to get the better forming effect, the upper punch entrance angle, stamping speed, mould surface hardness and friction coefficient were chosen as factors, and the orthogonal test was designed to optimize the factors by reducing the mould wear and forming loads as the objective. Furthermore, the influence trend of each factor on the optimal objective was obtained by comprehensive consideration of production efficiency, energy consumption, equipment wear and other factors, and the optimal parameters with the upper punch entrance angle of 20°, the stamping speed of 5 mm·s-1, the die surface hardness of 61 HRC and the friction coefficient of 0.12 were obtained. Finally, the life of punch was greatly improved by the optimum parameters, which was verified by the test.

基金项目：

企业横向项目（HY2018167）

刘俊英（1978-），女，硕士，副教授，E-mail：489729140@qq.com

参考文献：

[1]张学奇,董万鹏,葛力华,等.基于正交试验的闭式挤压工艺参数优化[J].塑性工程学报,2017,24(3):84-89.
Zhang X Q, Dong W P, Ge L H，et al. Processing parameters optimization of closed extrusion based on orthogonal experiment[J]. Journal of Plasticity Engineering, 2017,24(3):84-89.
[2]王勇,郑彬峰,黄俊杰,等.花键冷搓成形力正交试验分析[J].塑性工程学报,2018,25(5):240-247.
Wang Y, Zheng B F, Huang J J, et al.Analysis of forming force in cold rolling for spline based on orthogonal experiment[J]. Journal of Plasticity Engineering, 2018,25(5):240-247.
[3]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 mode[J].Hot Working Technology,2019,48(9):153-157.
[4]刘铭心,张东民,吴艳云,等.薄壁六角螺母浮动冷镦工艺分析及模具结构优化[J].锻压技术,2018,43(8):17-22.
Liu M X,Zhang D M,Wu Y Y, et al. Analysis on floating cold heading for thin-walled hex nut and its die structure optimization[J]. Forging & Stamping Technology,2018,43(8):17-22.
[5]皇涛,宋宇,张丹丹,等.基于修正的Archard磨损理论模型的H13模具钢热挤压磨损研究[J].锻压技术,2019,44(9):160-166.
Huang T, Song Y, Zhang D D, et al. Study on hot extrusion wear of H13 die steel based on modified Archard wear theory model[J]. Forging & Stamping Technology,2019,44(9):160-166.
[6]李聪波,何娇,杜彦斌,等.基于Archard模型的机床导轨磨损模型及有限元分析[J].机械工程学报,2016,52(15):106-113.
Li C B, He J, Du Y B, et al.Archard model based machine tool wear model and finite element analysis[J].Journal of Mechanical Engineering,2016,52(15):106-113.
[7]周杰, 赵军, 安治国. 热挤压模磨损规律及磨损对模具寿命的影响[J]. 中国机械工程,2007,(17):2112-2115.
Zhou J, Zhao J, An Z G. Wear rule and effects on the die service life during hot extrusion[J].China Mechanical Engineering, 2007, (17): 2112-2115.
[8]许思佳,冯玮.分流-挤压复合成形模具结构对斜齿轮成形的影响[J].热加工工艺,2019，48(17):75-78.
Xu S J, Feng W. Influence of die structure of shunt-extrusion compound forming on helical gear forming[J].Hot Working Technology,2019，48(17):75-78.
[9]王勇,郑彬峰,黄俊杰,等.花键冷搓成形力正交试验分析[J].塑性工程学报,2018,25(5):240-247.
Wang Y, Zheng B F, Huang J J, et al. Analysis of forming force in cold rolling for spline based on orthogonal experiment[J].Journal of Plasticity Engineering, 2018,25(5):240-247.
[10]毛志翔,鲁世红,李正芳,等.电加热渐进成形工艺参数优化及成形温度预测[J].热加工工艺,2019，48(19):100-103.
Mao Z X, Lu S H, Li Z F, et al.Optimization of process parameters and prediction of forming temperature for electro-heating incremental forming[J]. Hot Working Technology,2019，48(19):100-103.
[11]李攀,罗建国,康宁,等.整体式挂车支承桥主轴精确成形过程缺陷控制[J].塑性工程学报,2019,26(4):19-27.
Li P,Luo J G,Kang N,et al.Defect control in precise forming process for integral main axle of trailer supporting bridge[J].Journal of Plasticity Engineering, 2019,26(4):19-27.
[12]孙宪萍, 刘强强, 杨兵,等. 基于磨损正交试验的温挤压模具优化设计[J]. 润滑与密封, 2016, 41(6):73-76.
Sun X P, Liu Q Q, Yang B, et al. Optimization design on warm extrusion die based on orthogonal experiments of wear[J]. Lubrication Engineering, 2016, 41(6):73-76.

服务与反馈：

【文章下载】【加入收藏】