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薄壁六角法兰螺母精冲工艺分析及参数优化
英文标题:Process analysis and parameter optimization for fine blanking of thin-wall hexagon flange nut
作者:朱宇 
单位:大连职业技术学院 
关键词:薄壁六角法兰螺母 精冲 磨损量 正交试验 成形载荷 
分类号:
出版年,卷(期):页码:2020,45(10):106-111
摘要:

 针对薄壁六角法兰面螺母的结构特征,提出了两种精冲工艺方案,根据精冲工艺的特点,建立了精冲力学模型,并基于DEFORM-3D建立了有限元模型,对两种方案的精冲过程进行了数值模拟仿真,对比分析了两种精冲工艺方案的工件损伤值及成形载荷结果,从而获得了较优的工艺方案。其次,结合正交试验,选取模具表面硬度、摩擦系数、冲压速度及凸凹模间隙作为试验因素,建立了4因素3水平的正交试验表,研究了各试验因素对模具磨损量的影响程度,并以精冲过程中模具磨损量最小为优化目标,寻找最优方案的最优工艺参数组合。结果表明:当模具表面硬度为55 HRC、摩擦系数为0.1、冲压速度为10 mm·s-1、凸凹模间隙为0.04 mm时,模具磨损量最小。并通过工艺试验,验证了最优工艺参数组合方案的可信性,能够有效地指导工艺及模具设计。

 For the structural characteristics of thin-walled hexagon flange nut, two kinds of fine blanking process schemes were proposed, and according to the characteristics of fine blanking process, the mechanical model of fine blanking was established. Then, the finite element model was established based on DEFORM-3D, and the fine blanking processes of two schemes were numerical simulated respectively. Furthermore, the results of workpiece damage value and forming load for two kinds of fine blanking process schemes were analyzed and compared, and a better process scheme was obtained. Then, combined with orthogonal experiment, surface hardness of mold, 

friction coefficient, stamping speed and clearance between punch and die were selected as the experimental factors, and the orthogonal experiment with four factors and there levels was established. Finally, the influences of each experimental factor on the wear amount of mold were studied, and taking the minimum wear amount of mold in the fine blanking process as the optimization objective, the optimal process parameter combination of optimal scheme was found. The results show that when the surface hardness of mold is 55 HRC, the friction coefficient is 0.1, the stamping speed is 10 mm·s-1, and the clearance between punch and die is 0.04 mm, the wear amount of mold is the least. Through the process experiment, the credibility of optimal scheme for process parameter combination is verified to effectively guide the design of process and  mold .
 
基金项目:
大连职业技术学院(大连广播电视大学)2020年度科研课题成果(DZDD2020B-22)
作者简介:
朱宇(1976-),女,工学硕士,副教授 E-mail:zy-dlvtc@163.com
参考文献:

 
[1]李伟, 张辉,潘爱琼,等. 某结合齿冷精锻成形的数值模拟
[J]. 热加工工艺,2019,48(15):121-123.


Li W, Zhang H, Pan A Q, et al. Numerical simulation on cold precision forging of a combined tooth
[J]. Hot Working Technology,2019,48(15):121-123.


[2]Cenk Klaslan, Umut I·nce. Failure analysis of cold forged 37Cr4 alloy M10x28 bolts
[J]. Engineering Failure Analysis, 2016, 70:177-187.


[3]Anupama Francy K, De Ch SrinivasaRao, Gopalakrishnaiah P. Opatimization of direct extrusion process parameter on 16MnCr5 and AISI1010 using DEFORM-3D
[J]. Procedia Manufacturing, 2019,30:498-505.


[4]Jin Q, Han X, Hua L, et al. Process optimization method for cold orbital forging of component with deep and narrow groove
[J]. Journal of Manufacturing Processes, 2018, 33:161-174.


[5]Kroiss T, Engel U, Merklein M. Comprehensive approach for process modeling and optimization in cold forging considering interactions between process, tool and press
[J]. Journal of Materials Processing Technology, 2013, 213(7):1118-1127.


[6]史双喜, 李福涛. 基于Deform的精冲模具磨损特性研究
[J]. 润滑与密封, 2015,(7):89-92.

Shi S X, Li F T. Research on fine blanking die wear based on Deform
[J]. Lubrication Engineering, 2015,(7):89-92.


[7]张东民, 盛育东,张金玉, 等. 六角开槽螺母的冷镦工艺优化及数值模拟
[J].机械设计与制造,2018,(3):191-194.

Zhang D M, Sheng Y D, Zhang J Y, et al. Numerical simulation and optimization for cold heading of hexagonal slot nut
[J]. Machinery Design & Manufacture,2018,(3):191-194.


[8]赵震, 向华,庄新村,等.冷成形与精冲
[M].北京:机械工业出版社,2008.

Zhao Z, Xiang H, Zhuang X C, et al. Cold Forming and Fine Blanking
[M]. Beijing: Mechanical Industry Press,2008.


[9]金仁钢. 实用冷挤压技术
[M].哈尔滨: 哈尔滨工业大学出版社,2005.

Jin R G. Practical Cold Extrusion Technology
[M]. Harbin: Harbin University of Technology Press, 2005.


[10]Nara Nakeenopakun, Yingyot Aueulan. An application for the geometrical based optimization for a common tool design in cold forging process
[J]. Materials Today: Proceedings, 2019,17(4): 1702-1710.


[11]蔡力钢, 刘海东,程强, 等.基于正交试验法的模锻模具磨损分析及优化
[J].北京工业大学学报,2020,46(1):1-9.

Cai L G, Liu H D, Chen Q, et al. Analysis and optimization of die forging wear based on orthogonal test method
[J]. Journal of Beijing University of Technology,2020,46(1):1-9.


[12]吴淑芳, 王培安, 郭欢欢, 等. 基于正交试验的梭心冷挤压成形工艺研究及模具优化设计
[J]. 西华大学学报:自然科学版,2018,37(1):92-101.

Wu S F, Wang P A, Guo H H, et al. Bobbin cold extrusion forming process and mold optimum design based on orthogonal test
[J].Journal of Xihua University: Natural Science Edition,2018,37(1):92-101.
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