Transactions of Materials and Heat Treatment

Title：Optimization on process parameters of synchronizer ring in hot precision forging based on particle swarm algorithm

Authors： Xiao Zhanglin Xiao Tiezhong Xu Ronggui

Unit： Sichuan Engineering Technical College

KeyWords： synchronizer ring hot precision forging particle swarm algorithm Kriging model

ClassificationCode：TG316

year,vol(issue):pagenumber：2017,42(2):17-20

Abstract：

In order to improve the material utilization of synchronizer ring in hot precision forging, the Kriging model of weighted grading values and process parameters was built with the design variables of initial billet temperatures, punch velocity, friction factor, inner diameter, height of billet and the optimization objective of weighted grading values of three indexes, such as the filling property, the forming defect and the material utilization rate. The optimal process parameters were found in the variable space, and the optimal process parameters were obtained as T=697.5 ℃，v=190 mm·s-1，m=0.43，d=62.75 mm，h=12.5 mm by the Kriging model combined with particle swarm algorithm. The process experiments were carried out by the optimum parameters, and the forging part is fully filled without folding defects. Therefore, the material utilization rate is improved from 47.52% to 60.52%, and the optimization provides quantitative determination and reference for the design of process parameters on thin-wall ring in hot precision forging.

Funds：

四川省教育厅科研项目（16ZB0495）

肖章林（1981-），男，硕士，讲师

Reference：

［1］王梦寒，向东，周杰，等. 环坯尺寸对同步环飞边大小的影响规律[J]. 热加工工艺，2010，39(15)：12-14．Wang M H, Xiang D, Zhou J, et al. Influence of billet size on flash size of synchronizer ring [J]. Hot Working Technology, 2010, 39(15): 12-14.
［2］王梦寒，夏知姿，李雁召，等. 齿环精锻成形工艺参数的多目标优化设计[J]. 热加工工艺，2015，44(13)：154-156．Wang M H, Xia Z Z, Li Y Z, et al. Multi-objective optimization of forming process parameters for synchronizer ring precision forging [J]. Hot Working Technology, 2015, 44(13): 154-156.
［3］任小鸿, 梅静, 陈丽,等.汽车同步器齿环锻压工艺的改进[J]. 模具工业，2016，42(11)：64-67.Ren X H, Mei J, Chen L, et al. Improvement on forging process of automobile synchronizer gear ring [J]. Die & Mould Industry,2016，42(11): 64-67.
［4］赵军，周杰，安治国. 汽车钢质同步环精密成形与实验研究[J]. 机械科学与技术，2007，26(12)：1566-1569.Zhao J, Zhou J, An Z G. Study of precision formation and experiment on synchronizing steel ring [J]. Mechanical Science and Technology for Aerospace Engineering, 2007, 26(12):1566-1569.
［5］赵军，周杰，安治国. 钢质同步环综合成形分析及模具寿命影响研究[J]. 塑性工程学报，2008，15(6):162-165.Zhao J, Zhou J, An Z G. Study on the synthesis forming technology and effects on the die service life [J]. Journal of Plasticity Engineering, 2008, 15(6): 162-165.
［6］王文浩. 黄铜齿环精密锻造成形及模具磨损研究[D]. 重庆：重庆大学，2013.Wang W H. Study on Precision Forging Process and Die Wear of Brass Synchronizer Ring [D]. Chongqing: Chongqing University, 2013.
［7］李峰，储满生，唐珏，等. 用综合加权评分法优化高铬型钒钛矿电热熔分工艺[J]. 东北大学学报：自然科学版，2016，37(9)：1327-1331.Li F, Chu M S, Tang J, et al. Optimization of high chromium Vanadium-Titanium magnetite electric melting process by comprehensive weighted scoring method [J]. Journal of Northeastern University：Natural Science, 2016, 37(9):1327-1331.
［8］Liu W, Yan Y Y. Multi-objective optimization of sheet metal forming process using pareto based genetic algorithm [J]. Journal of Materials Processing Technology, 2008,208: 499-506.
［9］Palanivel R, Mathews P K. Prediction and optimization of process parameter of friction stir welded AA5083-H111 aluminum alloy using response surface methodology [J]. Journal of Central South University，2012, 19(1): 1-8.
［10］Lophaven S N, Nielsen H B, Sondergaard J. DACE a matlabkriging toolbox [EB/OL].http://www.imm.dtu.dk/~hbn/dace/， 2007-11-07.
［11］孙新强，谢延敏，田银，等.基于小波神经网络和粒子群算法的铝合金板冲压回弹工艺参数优化[J]. 锻压技术，2015，40(1)：137-142.Sun X Q, Xie Y M, Tian Y, et al. Parameters optimization of stamping and springback for aluminum-alloy sheet based on wavelet neural network and particle swarm optimization algorithm [J]. Forging & Stamping Technology, 2015, 40(1):137-142.

Service：

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