锻压技术

调频调幅式轴向振动挤压花键成形过程实验研究

英文标题：Experimental investigation on the extrusion process of axial vibration with frequency and amplitude modulated for spline

作者：马鹏举程向许志永郑学著田洁王聚存

单位：北京航空航天大学中航工业南方航空（集团）有限公司西安创新精密仪器研究所

关键词：花键轴向振动挤压降载包辛格效应成形力

分类号：TH161；TG316

出版年,卷(期):页码：2017,42(4):96-102

摘要：

研究了在低频振动花键挤压成形过程中成形力的变化规律和振动加工的降载机理。利用课题组研发的调频调幅振动挤压成形机为实验设备，搭建了成形力测量系统，实测花键振动挤压时成形力的变化，并对数据进行分析。结果表明：成形力的大小主要与振动的振幅有关，尤其是回退行程，当回退行程足够大时，模具与工件间的摩擦力将工件拉伸至屈服段，立即反向挤压，由于包辛格效应(Bauschinger)，成形力显著降低；另外，良好的润滑条件可以有效降低成形力，模具回退瞬时离开材料变形区时，润滑液进入，降低了材料与模具间的摩擦，从而降低成形力。实验研究表明，对于模数为0.47、齿数为36的小模数渐开线外花键挤压成形，采用频率10 Hz、前进行程1.38 mm、回退行程0.67 mm时，成形力降低了27%，降载效果显著。

The change rule of forming force and the load-restraining mechanism of vibration machining during the extrusion process of spline under low frequency vibration were studied. The measuring system of forming force was set up by the frequency modulation and vibration modulation extrusion machine developed by our research group. Therefore, the change of forming force was measured, and the measuring data were analyzed. The results show that the forming force is mainly related to the vibration amplitude, especially the retraction stroke. When the retraction stroke is large enough, the friction between mold and workpiece can make the workpiece yield by stretching, and the reverse extrusion is carried out immediately. However, the forming force is significantly reduced due to Bauschinger effect. In addition, the good lubrication conditions can effectively reduce the forming force due to the lubricant result in reducing the friction between material and mold when the mold backs off instantly away from the material deformation zone. The experimental results show that the forming force is reduced by 27% under the frequency of 10 Hz, the forward stroke of 1.38 mm and the retraction stroke of 0.67 mm for the extrusion of small modulus involute spline with the modulus of 0.47 and the teeth number of 36. Thus, the load-restraining effect is significant.

基金项目：

高档数控机床与基础制造装备科技重大专项（2014ZX04001021）

马鹏举（1961-），男，博士，副教授 E-mail：07931@buaa.edu.cn 通讯作者：程向（1991-），男，硕士研究生 E-mail:peterwinners@buaa.edu.cn

参考文献：

[1]韩清凯，郝建山，闻邦椿. 金属材料加工中的振动利用问题[J]. 中国机械工程, 2001, 12(5):594-597.

Han Q K, Hao J S, Wen B C. On utilization of vibration in metal deformation processes[J]. China Mechanical Engineering, 2001, 12(5): 594-597.

[2]Brehl D E, Dow T A. Review of vibration-assisted machining[J]. Precision Engineering, 2008, 32(3): 153-172.

[3]Kumar M N, Subbu S K, Krishna P V, et al. Vibration assisted conventional and advanced machining: A review[J]. Precision Engineering, 2014,97: 1577-1586.

[4]Kong X C, Zhang L, Dong J Y, et al. Machining force modeling of vibration-assisted nano-machining process[A]. Proceedings of the ASME 2015 International Manufacturing Science and Engineering Conference MSEC2015[C]. Charlotte, North Carolina, USA: 2015.

[5]Li Z Q, Yu D, Sun T. Research status of the vibration assisted machining (VAM) technology[J]. Hydromechatronics Engineering, 2015,43(12):1-16.

[6]Li K M, Hu Y M, Yang Z Y, et al. Experimental study on vibration-assisted grinding[J]. Journal of Manufacturing Science & Engineering, 2012, 134(4): 90-99.

[7]何勍，闻邦椿. 振动塑性加工的进展及若干问题[J]. 辽宁工学院学报，1999, 19（4）: 5-9.

He Q, Wen B C. Development and some problems in metal plastic deformation processs with vibration[J]. Journal of Liaoning Institute of Technology, 1999, 19（4）：5-9.

[8]Osakada K, Wang X, Hanami S. Precision forging of spline by flashless die forging with axially driven die[J]. CIRP Annals-Manufacturing Technology, 1997, 46(1): 209-212.

[9]董明飞. 轴向颤振冷挤压成形过程及降载机理研究[D]. 杭州：浙江工业大学, 2013.

Dong M F. Study on Cold Extrusion and Load Shedding Mechanism by High-Frequency Axially Vibration Excitation[D]. Hangzhou:Zhejiang University of Technology, 2013.

[10]陈园园. 轴向振动凹模冷精锻直齿轮数值模拟分析与试验研究[D]. 武汉：武汉理工大学, 2009.

Chen Y Y. Numerical Simulation and Experimental Research of Precision Forming on Spur Gear with Axially Driven Container[D]. Wuhan:Wuhan University of Technology, 2009.

[11]胡子非,毛华杰. 可轴向振动挤压模体精锻过程中振幅影响的数值模拟[J]. 热加工工艺, 2007, 36（13）: 78-85.

Hu Z F, Mao H J. Numerical simulation of axial oscillation of extrusion container in different amplitudes during precision forging[J]. Hot Working Technology, 2007, 36（13）: 78-85.

[12]Amini S, Soleimanimehr H, Nategh M J, et al. FEM analysis of ultrasonic-vibration-assisted turning and the vibratory tool[J]. Journal of Materials Processing Technology, 2008, 201(1-3): 43-47.

[13]Vivekananda K, Arka G N, Sahoo S K. Design and analysis of ultrasonic vibratory tool (UVT) using FEM, and experimental study on ultrasonic vibration-assisted turning (UAT) [J]. Procedia Engineering, 2014, 97: 1178-1186.

[14]赵晨阳, 李洪波, 韩金成,等. 花键轮精密锻造成形的数值模拟及实验研究[J]. 锻压技术, 2016, 41(1):11-15.

Zhao C Y, Li H B, Han J C, et al. Numerical simulation and experimental research on precision forging for spline gear[J]. Forging & Stamping Technology, 2016, 41(1):11-15.

[15]张琦, 贲宁宇, 王聚存, 等. 花键轴振动挤压成形试验研究[J]. 西安交通大学学报, 2015, 49(11): 110-115.

Zhang Q, Ben N Y, Wang J C, et al. Experimental research on oscillating extrusion of splined shaft[J]. Journal of Xi′an Jiaotong University, 2015, 49(11): 110-115.

[16]马晓平, 惠卫军, 刘春明, 等. 冷作强化非调质钢冷变形过程中的鲍辛格效应[J]. 钢铁研究学报, 2007, 19(1): 39-43.

Ma X P, Hui W J, Liu C M, et al. Bauschinger effect of microalloyed steel for cold heading bolt in cold drawing process[J]. Journal of Iron and Steel Reasearch, 2007, 19(1): 39-43.

服务与反馈：

【文章下载】【加入收藏】