基于响应曲面法的强力旋压锡青铜筒形件硬度研究
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摘要
为研究强力旋压各主要工艺参数对于锡青铜筒形件布氏硬度指标的影响规律以及各因素间的交互作用,进行了Box-Behnken试验设计。试验结果表明工件硬度随减薄率及进给比的增大而增大,随热处理温度的增大而减小。基于Design Expert10软件分析得出各因素及其之间的耦合对于工件硬度影响的显著度,减薄率A和进给比C的影响高度显著,热处理温度B的影响显著,AC耦合与BC耦合的影响显著。以布氏硬度为响应,建立了以减薄率、进给比、热处理温度为自变量的回归预测模型,通过实验验证了模型的准确性。进行了强力旋压工艺参数优化,优化后的工艺参数组合为减薄率34%,进给比0.5 mm·r-1,热处理温度300℃。
To study the influence of main process parameters of power spinning on the Brinell hardness of tin bronze cylindrical workpieces and the interaction between various factors,the Box-Behnken test was designed.The test results show that the hardness of the workpiece increases with the increase of thinning rate and feed ratio,and decreases with the increase of heat treatment temperature.Based on Design Expert 10,the significance of the influence of the factors and their coupling on the hardness of the workpiece were obtained.The results show that the effect of thinning ratio(A) and feed ratio(C) is highly significant,the effect of heat treatment temperature(B) is significant,and the effect of AC coupling and BC coupling is significant.With Brinell hardness as response,thinning rate,feed ratio,and heat treatment temperature as independent variables,a regression prediction model was established.The accuracy of the model was verified through experiments.Power spinning process parameters were optimized,the optimized combination of process parameters is thinning rate of 34%,feed ratio of 0.5 mm·r-1,and heat treatment temperature of 300 ℃.
To study the influence of main process parameters of power spinning on the Brinell hardness of tin bronze cylindrical workpieces and the interaction between various factors,the Box-Behnken test was designed.The test results show that the hardness of the workpiece increases with the increase of thinning rate and feed ratio,and decreases with the increase of heat treatment temperature.Based on Design Expert 10,the significance of the influence of the factors and their coupling on the hardness of the workpiece were obtained.The results show that the effect of thinning ratio(A) and feed ratio(C) is highly significant,the effect of heat treatment temperature(B) is significant,and the effect of AC coupling and BC coupling is significant.With Brinell hardness as response,thinning rate,feed ratio,and heat treatment temperature as independent variables,a regression prediction model was established.The accuracy of the model was verified through experiments.Power spinning process parameters were optimized,the optimized combination of process parameters is thinning rate of 34%,feed ratio of 0.5 mm·r-1,and heat treatment temperature of 300 ℃.
引文
[1]张利鹏,刘志冲,周宏宇.筒形件强力旋压发展过程及其现状分析[J].塑性工程学报,2006,13(1):43-46.ZHANG Lipeng,LIU Zhichong,ZHOU Hongyu.The development and present situation analysis of power spinning of cylinders[J].Journal of Plasticity Engineering,2006,13(1):43-46.
[2]朱德彪,束学道.工艺参数对楔横轧GH4169合金轴类件力能参数的影响[J].塑性工程学报,2018,25(1):52-59.ZHU Debiao,SHU Xuedao.Influence of process parameters on force and energy parameters of cross wedge rolling GH4169 alloy shaft parts[J].Journal of Plasticity Engineering,2018,25(1):52-59.
[3]席奇豪,樊文欣,王金虎,等.强力旋压参数及退火温度对筒形件硬度的影响[J].锻压技术,2016,41(9):130-134.XI Qihao,FAN Wenxin,WANG Jinhu,et al.Influence of power spinning parameters and annealing temperature on the hardness of cylinder[J].Forging&Stamping Technology,2016,41(9):130-134.
[4]肖刚锋.筒形件强力旋压时纳米/超细晶生成条件研究[D].广州:华南理工大学,2016.XIAO Gangfeng.Research on formation condition of nano/ultrafine grained structures during power of cylindrical parts[D].Guangzhou:South China University of Technology,2016.
[5]夏琴香,杨保健,肖刚锋,等.退火工艺对低碳钢强力旋压变形组织及力学性能的影响[J].塑性工程学报,2014,21(4):33-37.XIA Qinxiang,YANG Baojian,XIAO Gangfeng,et al.Influence of annealing process on microstructure and mechanical properties of spun workpiece obtained by power stagger pinning[J].Journal of Plasticity Engineering,2014,21(4):33-37.
[6]GB/T 231.1-2009,金属材料布氏硬度试验第1部分:试验方法[S].GB/T 231.1-2009,Metallic materials-Brinell hardness testPart 1:Test method[S].
[7]张涛,樊文欣,朱芹,等.基于BP神经网络的连杆衬套强力旋压回弹量预测[J].特种铸造及有色合金,2017,37(4):380-382.ZHANG Tao,FAN Wenxin,ZHU Qin,et al.Prediction of springback of connecting rod bushing based on BP neural network[J].Special Casting&Nonferrous Alloys,2017,37(4):380-382.
[8]席奇豪.强力旋压QSn7-0.2合金微观组织与力学性能的研究[D].太原:中北大学,2017.XI Qihao.The study on power spinning QSn7-0.2 alloy microstructure and mechanical properties[D].Taiyuan:North University of China,2017.
[9]鹿峰凯,陈莉,宋宝韫.正交试验在连续挤压机腔体参数设计中的应用[J].锻压技术,2011,36(3):39-42.LU Fengkai,CHEN Li,SONG Baoyun.Application of orthogonal test to parameter design of continuous extrusion machine chamber[J].Forging&Stamping Technology,2011,36(3):39-42.
[10]陈继平,沈翔,吕昌福,等.渐进成形A3003铝板锥形件减薄带壁厚变化规律试验研究[J].塑性工程学报,2018,25(1):34-40.CHEN Jiping,SHEN Xiang,LChangfu,et al.Experimental study on thinning belt wall thickness variation of incrementally formed A3003 aluminum conical parts[J].Journal of Plasticity Engineering,2018,25(1):34-40.
[11]何为,薛卫东,唐斌.优化试验设计方法及数据分析[M].北京:化学工业出版社,2012.HE Wei,XUE Weidong,TANG Bin.Optimization of experimental design methods and data analysis[M].Beijing:Chemical Industry Press,2012.
[12]佘勇.强力旋压连杆衬套力学性能预测研究及工艺参数优化[D].太原:中北大学,2016.SHE Yong.Study on mechanical property prediction and process parameter optimization of power spinning connecting rod bushing[D].Tiayuan:North University of China,2016.
[2]朱德彪,束学道.工艺参数对楔横轧GH4169合金轴类件力能参数的影响[J].塑性工程学报,2018,25(1):52-59.ZHU Debiao,SHU Xuedao.Influence of process parameters on force and energy parameters of cross wedge rolling GH4169 alloy shaft parts[J].Journal of Plasticity Engineering,2018,25(1):52-59.
[3]席奇豪,樊文欣,王金虎,等.强力旋压参数及退火温度对筒形件硬度的影响[J].锻压技术,2016,41(9):130-134.XI Qihao,FAN Wenxin,WANG Jinhu,et al.Influence of power spinning parameters and annealing temperature on the hardness of cylinder[J].Forging&Stamping Technology,2016,41(9):130-134.
[4]肖刚锋.筒形件强力旋压时纳米/超细晶生成条件研究[D].广州:华南理工大学,2016.XIAO Gangfeng.Research on formation condition of nano/ultrafine grained structures during power of cylindrical parts[D].Guangzhou:South China University of Technology,2016.
[5]夏琴香,杨保健,肖刚锋,等.退火工艺对低碳钢强力旋压变形组织及力学性能的影响[J].塑性工程学报,2014,21(4):33-37.XIA Qinxiang,YANG Baojian,XIAO Gangfeng,et al.Influence of annealing process on microstructure and mechanical properties of spun workpiece obtained by power stagger pinning[J].Journal of Plasticity Engineering,2014,21(4):33-37.
[6]GB/T 231.1-2009,金属材料布氏硬度试验第1部分:试验方法[S].GB/T 231.1-2009,Metallic materials-Brinell hardness testPart 1:Test method[S].
[7]张涛,樊文欣,朱芹,等.基于BP神经网络的连杆衬套强力旋压回弹量预测[J].特种铸造及有色合金,2017,37(4):380-382.ZHANG Tao,FAN Wenxin,ZHU Qin,et al.Prediction of springback of connecting rod bushing based on BP neural network[J].Special Casting&Nonferrous Alloys,2017,37(4):380-382.
[8]席奇豪.强力旋压QSn7-0.2合金微观组织与力学性能的研究[D].太原:中北大学,2017.XI Qihao.The study on power spinning QSn7-0.2 alloy microstructure and mechanical properties[D].Taiyuan:North University of China,2017.
[9]鹿峰凯,陈莉,宋宝韫.正交试验在连续挤压机腔体参数设计中的应用[J].锻压技术,2011,36(3):39-42.LU Fengkai,CHEN Li,SONG Baoyun.Application of orthogonal test to parameter design of continuous extrusion machine chamber[J].Forging&Stamping Technology,2011,36(3):39-42.
[10]陈继平,沈翔,吕昌福,等.渐进成形A3003铝板锥形件减薄带壁厚变化规律试验研究[J].塑性工程学报,2018,25(1):34-40.CHEN Jiping,SHEN Xiang,LChangfu,et al.Experimental study on thinning belt wall thickness variation of incrementally formed A3003 aluminum conical parts[J].Journal of Plasticity Engineering,2018,25(1):34-40.
[11]何为,薛卫东,唐斌.优化试验设计方法及数据分析[M].北京:化学工业出版社,2012.HE Wei,XUE Weidong,TANG Bin.Optimization of experimental design methods and data analysis[M].Beijing:Chemical Industry Press,2012.
[12]佘勇.强力旋压连杆衬套力学性能预测研究及工艺参数优化[D].太原:中北大学,2016.SHE Yong.Study on mechanical property prediction and process parameter optimization of power spinning connecting rod bushing[D].Tiayuan:North University of China,2016.