网站首页期刊简介编委会过刊目录投稿指南广告合作征订与发行联系我们English
基于浮动下模的车用小型套管冷挤压工艺
英文标题:Cold extrusion process on small casing for vehicle based on floating lower die
作者:陈小梅1 黄惠2 
单位:1.福州职业技术学院 机电工程系 2. 福州大学 机械工程及自动化学院 
关键词:小型套管 折叠缺陷 棒料挤压 管料挤压 模具结构 
分类号:TG376.3
出版年,卷(期):页码:2023,48(10):116-122
摘要:

 针对一种小型套管采用棒料挤压成形时工序多、模具成本高的问题,拟采用管料挤压工艺进行替代,从而减少与孔成形相关的工序。首先,通过数值模拟软件Deform3D对原工艺进行成形模拟,验证了材料模型等建模结果的可靠性。然后,对新工艺进行模拟分析,发现成形后套管头部存在折叠缺陷,与实际试验结果一致,分析缺陷产生的原因并提出了解决方案,改进了模具结构,结果显示:当下模浮动且合理设置顶环位置时,能避免折叠缺陷,并完成管料挤压成形,获得成形效果较好的套管零件。经实际生产验证,新工艺能满足生产要求,成形的套管零件的质量较好,无折叠等缺陷。与原工艺相比,虽然坯料价格更高,但模具成本更低,材料利用率更高,总体上实现了降本的目的。

  For the problem of multiple processes and high die cost when forming a small casing by bar extrusion, it was proposed to use tube extrusion process to replace it, thereby reducing the process related to hole forming. Firstly, the forming simulation of the original process was conducted by using numerical simulation software Deform-3D to verify the reliability of the modeling results such as material model. Secondly, a simulation analysis of the new process was conducted, and it was found that there were folding defects in the casing head after forming, which was consistent with the actual test results. Then, the causes of defects were analyzed, and the solutions were proposed to improve the die structure. The results show that when the lower die is floating and the top ring position is set appropriately, folding defects can be avoided, and the tube extrusion forming can be completed to obtain the casing parts with better forming effects. After actual production verification, the new process can meet the production requirements, and the quality of the formed casing parts is good, without various defects such as folding. Compared with the original process, although the billet price is higher, the die cost is lower, the material utilization rate is higher, and overall cost reduction is achieved.

基金项目:
2022年福州职业技术学院产学合作开发项目(FZYKJJJCX202202);国家自然科学基金(青年)资助项目(52105053);2021年福州职业技术学院教学改革研究课题(2021jgkt016)
作者简介:
陈小梅(1982-),女,硕士,副教授 E-mail:chenxiaomei0215@163.com
参考文献:

 
[1]周志伟,龚红英,贾星鹏,等.铝合金蓄能器壳体冷挤压成形多目标优化
[J].有色金属科学与工程,2021,12(1):67-74.


Zhou Z W, Gong H Y, Jia X P, et al. Multiobjective optimization of cold extrusion forming of aluminum alloy accumulator shell
[J].Nonferrous Metals Science and Engineering,2021,12(1):67-74.


[2]夏玉峰,叶彩红,王力,等.基于响应面法的直齿轮冷挤压工艺多目标优化
[J].华中科技大学学报:自然科学版,2016,44(1):70-75.

Xia Y F, Ye C H, Wang L, et al. Multiobjective optimization of cold extrusion process for planetary spur gear based on RSM
[J].Journal of Huazhong University of Science and Technology:Natural Science Edition,2016,44(1):70-75.


[3]褚忠,瞿伟,刘铭心,等.冷挤压模具磨损优化设计
[J].铸造技术,2017,38(12):2895-2899.

Chu Z, Qu W, Liu M X, et al. Optimum design of cold extrusion die wear
[J].Foundry Technology,2017,38(12):2895-2899.


[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]张京,吴淑芳,陈风龙.气门顶杆冷挤压过程模具磨损研究
[J].机械工程与自动化,2019,213(2):33-35.

Zhang J, Wu S F, Chen F L. Research on wear of cold extrusion die for valve stem
[J].Mechanical Engineering & Automation,2019,213(2):33-35.


[6]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, Cheng 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.


[7]王波,张加正.四通阀体热锻成形CAE分析及工艺优化
[J].锻压技术,2021,46(5):7-11.

Wang B, Zhang J Z.CAE analysis and process optimization on hot forging for fourway valve body
[J].Forging & Stamping Technology,2021,46(5):7-11.


[8]赵顺治,景财年,林涛,等.基于Deform3D的风机主轴空心轴预制坯成形优化
[J].锻压技术,2022,47(6):47-54.

Zhao S Z, Jing C N, Lin T, et al. Forming optimization on hollow shaft preform of wind turbine spindle based on Deform3D
[J].Forging & Stamping Technology,2022,47(6):47-54.


[9]周鹏,张培彦.基于A/H外推法的低碳钢Q235真实应力应变关系研究
[J].铸造技术,2013,34(12):1637-1639.

Zhou P, Zhang P Y. Research on true stressstrain curves of mild steel Q235 based on A/H extrapolation
[J].Foundry Technology,2013,34(12):1637-1639.


[10]杨雨童,罗锐,程晓农,等.喷射成形高强AlZnMgCu合金的高应变速率塑性变形行为
[J].中国有色金属学报,2019,29(12):2700-2708.

Yang Y T, Luo R, Cheng X N, et al. Plastic deformation behavior of spray formed highstrength AlZnMgCu alloy at high strain rate
[J].The Chinses Journal of Nonferrous Metals,2019,29(12):2700-2708.


[11]冯文杰,钟江涛,陈莹莹,等.花键过渡套浮动式芯棒冷挤压成形方法研究
[J].机械设计与制造,2017,312(2):73-75,79.

Feng W J, Zhong J T, Chen Y Y, et al. Research on floating mandrel cold extrusion process for spline transition housing
[J].Machinery Design & Manufacture,2017,312(2):73-75,79.


[12]赵德颖,张连东,朱恩领,等.枝杈类锻件挤压成形工艺参数对折叠缺陷的影响分析
[J].热加工工艺,2017,46(23):118-121,125.

Zhao D Y, Zhang L D, Zhu E L, et al. Influence analysis of extrusion forming process parameters on folding defects for branchlike forgings
[J].Hot Working Technology,2017,46(23):118-121,125.


[13]冯玮,李明丽.浮动凹模温精密成形圆柱斜齿轮变形规律分析
[J].精密成形工程,2017,9(1):35-40.

Feng W, Li M L. Analysis of deformation law for warm precision forging helical gears using floating die process
[J].Journal of Netshape Forming Engineering,2017,9(1):35-40.


[14]谭险峰,谢保华,刘霞.基于浮动凹模和约束分流的直齿轮精锻试验与数值模拟
[J].塑性工程学报,2016,23(1):7-10.

Tan X F, Xie B H, Liu X. Experiment and numerical simulation on precision forging for spur gear based on floating die and restrained splitflow
[J]. Journal of Plasticity Engineering,2016,23(1):7-10.
服务与反馈:
文章下载】【加入收藏
《锻压技术》编辑部版权所有

中国机械工业联合会主管  中国机械总院集团北京机电研究所有限公司 中国机械工程学会主办
联系地址:北京市海淀区学清路18号 邮编:100083
电话:+86-010-82415085 传真:+86-010-62920652
E-mail: fst@263.net(稿件) dyjsjournal@163.com(广告)
京ICP备07007000号-9