调频调幅轴向花键挤压试验研究
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摘要
花键类零件在动力传动机构中应用广泛,承载能力大,导向性好,定心精度高。常用加工方式主要是切削加工工艺和挤压、滚压的无切削加工工艺,受工艺方法的限制,在薄壁零件外花键加工中,极易造成工件变形,无法满足加工精度要求,特别是在航空难加工材料薄壁细长轴内外花键成形中,由于高温合金材料加工工艺性差,切削力大,是加工的一个难点。调频调幅轴向振动挤压成形加工工艺在加工过程中,模具挤压时附加振动,可有效降低挤压变形抗力,改善加工精度。研究振动挤压过程中的工艺参数,与传统工艺进行对比,同时得到各个工艺参数对加工工艺的定性关系,为优化振动挤压工艺参数和机床调整提供理论依据。进行了调频调幅轴向挤压主要工艺参数的测量试验,得到了调频调幅振动挤压的工艺参数并进行了分析研究,对薄壁细长轴外花键振动挤压成形工艺设计有重要的指导意义。
Spline parts are widely used in power transmission mechanism with large carrying capacity,good guide,high centering precision. The traditional processing method is mainly cutting process and extrusion,rolling of non cutting process. Limited by the process,the thin-walled workpieces are extremely easy to wrongly deform in the spline machining and the accuracy cannot meet the requirement of process. Because the machining process of high temperature alloy material is poor and the cutting force is big,it is difficult to deform the thin wall and slender shaft of aeronautical material. In the process of axial vibration extrusion of spline with frequency and amplitude modulation,the additional vibration can effectively reduce the deformation resistance and improve the precision.Study onthe extrusion process parameters,compared with the traditional process,can find out the qualitative relations of parameters,on which optimization of vibration extrusion process parameters and adjustment of the machine is based. Thus,there is much guiding significance for processing design of spline vibration extrusion of thin wall and slender shaft in the measure and analysis of FM modulation extrusion process parameters.
Spline parts are widely used in power transmission mechanism with large carrying capacity,good guide,high centering precision. The traditional processing method is mainly cutting process and extrusion,rolling of non cutting process. Limited by the process,the thin-walled workpieces are extremely easy to wrongly deform in the spline machining and the accuracy cannot meet the requirement of process. Because the machining process of high temperature alloy material is poor and the cutting force is big,it is difficult to deform the thin wall and slender shaft of aeronautical material. In the process of axial vibration extrusion of spline with frequency and amplitude modulation,the additional vibration can effectively reduce the deformation resistance and improve the precision.Study onthe extrusion process parameters,compared with the traditional process,can find out the qualitative relations of parameters,on which optimization of vibration extrusion process parameters and adjustment of the machine is based. Thus,there is much guiding significance for processing design of spline vibration extrusion of thin wall and slender shaft in the measure and analysis of FM modulation extrusion process parameters.
引文
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[15]Bunget C,Ngaile G.Influence of ultrasonic vibration on micro-extrusion[J].Ultrasonics,2011,51(5):606-616
[2]赵玉民,杨金娥,彭巍.花键管挤压成形研究[J].机械制造,2006,44(7):41-42Zhao Y M,Yang J E,Peng W.Research on extrusion forming of spline tube[J].Machinery,2006,44(7):41-42(in Chinese)
[3]刘志奇,宋建丽,李永堂,等.渐开线花键冷滚压精密成形工艺分析及试验研究[J].机械工程学报,2011,47(14):32-38Liu Z Q,Song J L,Li Y T,et al.Analysis and experimental study on the precision cold rolling process of involute spline[J].Journal of Mechanical Engineering,2011,47(14):32-38(in Chinese)
[4]杨庆华,陈鑫,孟彬,等.汽车活塞销振动挤压数值模拟分析[J].浙江工业大学学报,2013,41(3):317-320Yang Q,Chen X,Meng B,et al.Numerical simulation for vibration extrusion of automotive car piston pins[J].Journal of Zhejiang University of Technology,2013,41(3):317-320(in Chinese)
[5]栾谦聪,董湘怀,吴云剑.径向锻造工艺参数对锻透性的影响[J].中国机械工程,2014,25(22):3098-3103Luan Q C,Dong X H,Wu Y J.Effects of process parameters on FPE in radial forging processes[J].Journal of China Mechanical Engineering,2014,25(22):3098-3103(in Chinese)
[6]梁瑜轩,黎向锋,左敦稳,等.内螺纹低频振动冷挤压试验研究[J].航空学报,2013,34(2):442-450Liang Y X,Li F X,Zuo D W,et al.Experimental research on internal thread formation by cold extrusion based on low frequency vibration[J].Acta Aeronautica et Astronautica Sinica,2013,34(2):442-450(in Chinese)
[7]Zhang Z C,Li J,Zhou L H,et al.Experimental study on open-die cold extrusion forming technique for involutespline shafts[J].Chinese Journal of Mechanical Engineering(English Edition),1996,9(1):6-12
[8]李泳峄,赵升吨.花键轴增量式滚轧成形坯料直径计算及有限元分析[J].锻压技术,2013,38(1):61-65Li Y Y,Zhao S D.Diameter calculation of billet before incremental rolling for spline shaft and finite element analysis[J].Forging&Stamping Technology,2013,38(1):61-65(in Chinese)
[9]Hu X H,Yang Q H,Wang Z H,et al.Influence of electrichydraulic chattering on forward extrusion process[J].The International Journal of Advanced Manufacturing Technology,2016,82(9-12):1475-1484
[10]Vollertsen F,Hu Z,Niehoff H S,et al.State of the art in micro forming and investigations into micro deep drawing[J].Journal of Materials Processing Technology,2004,151(1-3):70-79
[11]Chang Y M.The study of size effect and ultrasonic assisted in micro foil forming processes[D].2012
[12]Presz W,Andersen B.Flexible tooling for vibrationassisted microforming[J].Journal of Achievements in Materials and Manufacturing Engineering,2007,21(2):61-64
[13]Mousavi S A A A,Feizi H,Madoliat R.Investigations on the effects of ultrasonic vibrations in the extrusion process[J].Journal of Materials Processing Technology,2007,187-188:657-661
[14]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):110-115Zhang 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(in Chinese)
[15]Bunget C,Ngaile G.Influence of ultrasonic vibration on micro-extrusion[J].Ultrasonics,2011,51(5):606-616
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