基于Simufact筒形件强力旋压旋轮数量对成形质量的影响
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摘要
为了得到成形质量较好的锡青铜连杆衬套,采用有限元软件Simufact对旋压工艺中不同旋轮数量进行数值模拟研究。使用锡青铜筒形件作为研究对象,对同一毛坯件进行双旋轮和三旋轮的旋压工艺模拟,以内径扩径量、壁厚偏差、椭圆度作为旋压成形质量的评价指标,通过对比分析,结果表明:双轮旋压内径扩径量由底部至口部不断增大,三轮旋压内径扩径量先减小后增大;双轮旋压后的壁厚偏差小于三轮旋压;双轮旋压后的椭圆度较三轮旋压偏大;三轮旋压的成形质量较为稳定,双轮旋压波动较大。因此,采用三轮强力旋压工艺加工后的锡青铜连杆衬套的成形质量较双轮旋压略好,尺寸精度更高。
In order to obtain tin bronze connecting rod bushing with better forming quality,the number of different spinning wheels in spinning process was simulated by finite element software Simufact. For the tin bronze cylindrical parts,the spinning processes with two and three spinning wheels were simulated on the same blank,and the comparison and analysis were conducted with inner diameter expansion amount,wall thickness deviation and ellipticity as the evaluation indexes of spinning forming quality. The results show that the inner diameter expansion amount increases from the bottom to the mouth in the two-wheel spinning process,while in the three-wheel spinning process,it decreases first and then increases. The wall thickness deviation of the two-wheel spinning is smaller than that of the threewheel spinning,the ellipticity of the two-wheel spinning is larger than that of the three-wheel spinning,the forming quality of the threewheel spinning is relatively stable,and the fluctuaion of the two-wheel spinning is large. Thus,the forming quality of tin bronze connecting rod bushing processed by the three-wheel power spinning is slightly better than that of the two-wheel spinning,and the former dimension accuracy is higher.
In order to obtain tin bronze connecting rod bushing with better forming quality,the number of different spinning wheels in spinning process was simulated by finite element software Simufact. For the tin bronze cylindrical parts,the spinning processes with two and three spinning wheels were simulated on the same blank,and the comparison and analysis were conducted with inner diameter expansion amount,wall thickness deviation and ellipticity as the evaluation indexes of spinning forming quality. The results show that the inner diameter expansion amount increases from the bottom to the mouth in the two-wheel spinning process,while in the three-wheel spinning process,it decreases first and then increases. The wall thickness deviation of the two-wheel spinning is smaller than that of the threewheel spinning,the ellipticity of the two-wheel spinning is larger than that of the three-wheel spinning,the forming quality of the threewheel spinning is relatively stable,and the fluctuaion of the two-wheel spinning is large. Thus,the forming quality of tin bronze connecting rod bushing processed by the three-wheel power spinning is slightly better than that of the two-wheel spinning,and the former dimension accuracy is higher.
引文
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[9]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 J P,Shen X,Lyu C F, 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.
[10]潘小浪,王敏婷,李学通,等.辊式微楔横轧数理建模及仿真分析[J].塑性工程学报,2018,25(1):66-71.Pan X L,Wang M T,Li Xu T,et al. Mathematical modeling and simulation analysis of roll micro cross wedge rolling[J]. Journal of Plasticity Engineering,2018,25(1):66-71.
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[12]杨柳. TA1纯钛冷轧薄板冲压过程开裂原因分析[J].塑性工程学报,2018,25(2):73-78.Yang L. Analysis on the causes of stamping cracking of TA1 pure titanium cold rolled sheet[J]. Journal of Plasticity Engineering,2018,25(2):73-78.
[2]王成和,刘克璋,周路.旋压技术[M].福州:福建科学技术出版社,2016.Wang C H, Liu K Z, Zhou L. Spinning Technology[M].Fuzhou:Fujian Science and Technology Press,2016.
[3]葛丹丹,金峰,樊文欣.筒形件强力旋压有限元数值模拟技术的研究[J].热加工工艺,2011,40(11):93-95,100.Ge D D,Jin F,Fan W X. Research on numerical simulation technology for cylinders power spinning[J]. Hot Working Technology,2011,40(11):93-95,100.
[4]冯志刚,樊文欣,赵俊生,等.基于正交试验的连杆衬套强力旋压成形分析[J].热加工工艺,2014,43(7):100-103.Feng Z G,Fan W X,Zhao J S,et al. Forming analysis of power spinning of connecting rod bushing based on virtual orthogonal experiment[J]. Hot Working Technology,2014,43(7):100-103.
[5]刘彬.双轮错距缩径旋压试验与数值模拟研究[D].广州:华南理工大学,2016.Liu B. Experiment and Numerical Simulation on Stagger Neckspinning with Double Rollers[D]. Guangzhou:South China University of Technology,2016.
[6]樊文欣,吕伟,原霞,等.筒形件强力正旋的扩径研究[J].热加工工艺,2016,45(13):162-164,168.Fan W X,Lyu W,Yuan X,et al. Reseaech on tube diameter expanding of tube workpiece during forword power spinning[J].Hot Working Technology,2016,45(13):162-164,168.
[7]佘勇,樊文欣,曹存存,等.工艺参数对强力旋压连杆衬套性能的影响研究[J].科学技术与工程,2017,17(1):158-161.She Y,Fan W X,Cao C C,et al. Study on the influence of process parameters on performance of power spinning rod bushing[J]. Science Technology and Engineering,2017,17(1):158-161.
[8]吕伟,樊文欣,王跃,等.连杆衬套旋压尺寸精度分析[J].塑性工程学报,2016,23(3):29-33.Lyu W,Fan W X,Wang Y,et al. Dimensional accuracy of spinning process of connecting rob bushing[J]. Journal of Plasticity Engineering,2016,23(3):29-33.
[9]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 J P,Shen X,Lyu C F, 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.
[10]潘小浪,王敏婷,李学通,等.辊式微楔横轧数理建模及仿真分析[J].塑性工程学报,2018,25(1):66-71.Pan X L,Wang M T,Li Xu T,et al. Mathematical modeling and simulation analysis of roll micro cross wedge rolling[J]. Journal of Plasticity Engineering,2018,25(1):66-71.
[11]李众,樊文欣,冯再新,等.连杆铜衬套尺寸精度的强力旋压参数优化[J].特种铸造及有色合金,2017,37(6):694-696.Li Z,Fan W X,Feng Z X,et al. Optimization of power spinning parameters for dimensional precision of connecting rod bushing[J]. Special-cast and Non-ferrous Alloys,2017,37(6):694-696.
[12]杨柳. TA1纯钛冷轧薄板冲压过程开裂原因分析[J].塑性工程学报,2018,25(2):73-78.Yang L. Analysis on the causes of stamping cracking of TA1 pure titanium cold rolled sheet[J]. Journal of Plasticity Engineering,2018,25(2):73-78.
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