锻压技术

汽车蓄能器壳体温挤压仿真及参数优化

英文标题：Simulation and parameter optimization on warm extrusion for automobile accumulator shell

作者：兀光波

分类号：TG376

出版年,卷(期):页码：2021,46(12):159-164

摘要：

以汽车蓄能器壳体为研究对象，针对实际生产中出现的筒壁质量差、变形的问题，采用有限元法和正交试验法对工艺进行优化。首先，分析温挤压成形过程，确定了影响零件质量及模具寿命的关键工艺参数；其次，以筒壁内外温度差和凸模磨损为评估指标，通过Deform3D对各工艺参数进行了正交试验仿真，获得了各参数对评估指标的影响趋势，综合分析后确定了最优温挤压工艺参数，即模具预热温度为280 ℃、凸模挤压速度为45 mm·s-1、凸模切入角为14°、凸模端面直径为Ф27.8 mm。最后，根据数值仿真结果，进行了蓄能器壳体的实际温挤压生产，零件筒壁质量好，无刮伤等缺陷，验证了试验结果的可靠性。

For the automobile accumulator shell, aiming at the problems of poor quality and deformation of cylinder wall in actual production, the process was optimized by finite element method and orthogonal test method. Firstly, the process of warm extrusion forming was analyzed, and the key process parameters affecting the quality of parts and mold life were determined. Secondly, taking the temperature difference between inside and outside of cylinder wall and punch wear as evaluation indexes, based on orthogonal experiment, each process parameter was simulated by Deform-3D, and the influence trends of process parameters on evaluation indexes were obtained. After comprehensive analysis, the optimal process parameters of warm extrusion were determined as the mold preheating temperature of 280 ℃, the punch extrusion speed of 45 mm·s-1, the punch cut in angle of 14°, and the diameter at punch end surface of Ф27.8 mm. Finally, according to the numerical simulation results, the actual warm extrusion production of accumulator shell was carried out, and the wall quality of the part was good without scratch and other defects to verify the reliability of the test results.

基金项目：

兀光波（1983-），男，硕士，副教授，高级工程师 E-mail：sabrina1217@aliyun.com

参考文献：

[1] 宋志远, 刘淑梅,莫壮壮,等.基于响应面法的蓄能器壳体工艺优化[J].轻工机械,2020,38(2):90-94.

Song Z Y, Liu S M, Mo Z Z, et al. Process optimization of accumulator housing based on response surface method[J]. Light Industry Machinery,2020,38(2):90-94.

[2] 王瑶, 査光成,谢斌,等.螺旋伞齿轮近净成形试验研究[J].塑性工程学报,2020,27(4):33-40.

Wang Y, Zha G C, Xie B, et al. Experimental research on near net shape forming of spiral bevel gear[J]. Journal of Plasticity Engineering,2020,27(4):33-40.

[3] Liu J W, Li Y, Lu S Q, et al. Study on the process characteristics of vacuum hot pressing sintering of TiNiNb alloy based on “near net shape forming”[J]. Materials Letters,2021,294(11):129758.

[4] 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.

[5] 李秋琴. 基于多目标优化的镁合金机械外壳挤压工艺研究[J].热加工工艺,2020,49(15):76-79.

Li Q Q. Study on extrusion process of magnesium alloy mechanical shells based on multiobjective optimization[J]. Hot Working Technology,2020,49(15):76-79.

[6] Pater Z, Bartnicki J, Samolyk G. Numerical modelling of crosswedge rolling process of ball pin[J].Journal of Materials Processing Technology,2005,164-165:1235-1240.

[7] 苏晓斌, 宓一鸣,龚红英,等.车用突缘外套件温挤压成形及模具磨损研究[J].热加工工艺,2014,43(3):126-128.

Su X B, Mi Y M, Gong H Y, et al. Research on warm extrusion forming and die wear for automobile external sleeve with flange[J]. Hot Working Technology,2014,43(3):126-128.

[8] 周艳霞, 洪峰.基于DEFORM的温挤压凹模结构优化[J].制造技术与机床,2018,(11):44-46,57.

Zhou Y X, Hong F. Structure optimization of warm extrusion female die based on DEFORM[J]. Manufacturing Technology,2018,(11):44-46,57.

[9] 朱成俊, 王景.轻量型食品装备多界面管材塑性成型工艺有限元模拟[J].食品与机械,2018,34(3):108-110,155.

Zhu C J, Wang J. Finite element simulation on plastic forming process of multiinterface tube material in lightweight food epuipment[J]. Food & Machinery,2018,34(3):108-110,155.

[10]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.

[11]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.

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