无芯棒旋锻径向进给参数变化匹配研究
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摘要
以某汽车等速万向传动中间旋锻轴为研究对象,耦合旋锻成形工艺特征、强度要求和材料力学特性等进行无芯棒旋锻径向进给参数变化匹配。首先根据旋锻工艺特征确定无芯棒旋锻内外表面圆度几何质量参数;其次根据旋锻轴材料力学特性的应力约束和尺寸和形状等几何特性要求的几何约束确定无芯棒旋锻的最大等效进给量;最后根据旋锻轴产品精度要求,确定无芯棒旋锻各道次进给最小锻打次数与进给道次。通过制定的无芯棒旋锻径向进给参数对旋锻轴进行生产试制并进行内外表面圆度质量测试和硬度测试,测试结果满足产品质量要求和后续渐开线花键成形的硬度要求,进一步表明通过研究匹配的径向进给参数合理。
Taking the intermediate rotary swaging shaft of constant velocity universal transmission of a car as the object,the process characteristics of rotary swaging,strength requirements and material mechanical properties were coupled to match the variety of process parameters in rotary swaging without mandrel. First,the geometrical quality parameters of the roundness of the inner and outer surfaces of tube were determined according to the characteristics of the rotary swaging process. Secondly,the maximum equivalent radial feed value was determined according to the stress constraints of mechanical properties and the geometric constrains of size and shape of the rotary swaging shaft. Finally,the minimum number of forging times and feed passes were determined by the precision requirement of the rotary swaging shaft. Based on the radial feed parameters of rotary swaging without mandrel,the rotary swaging shaft was produced and trial-manufactured,and the roundness and hardness of the inner and outer surfaces were tested. The results meet the requirements of product quality and the hardness for involute spline,which shows that the matching rotary swaging parameters is reasonable for product.
Taking the intermediate rotary swaging shaft of constant velocity universal transmission of a car as the object,the process characteristics of rotary swaging,strength requirements and material mechanical properties were coupled to match the variety of process parameters in rotary swaging without mandrel. First,the geometrical quality parameters of the roundness of the inner and outer surfaces of tube were determined according to the characteristics of the rotary swaging process. Secondly,the maximum equivalent radial feed value was determined according to the stress constraints of mechanical properties and the geometric constrains of size and shape of the rotary swaging shaft. Finally,the minimum number of forging times and feed passes were determined by the precision requirement of the rotary swaging shaft. Based on the radial feed parameters of rotary swaging without mandrel,the rotary swaging shaft was produced and trial-manufactured,and the roundness and hardness of the inner and outer surfaces were tested. The results meet the requirements of product quality and the hardness for involute spline,which shows that the matching rotary swaging parameters is reasonable for product.
引文
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[8]卢曦,廖金雄.毛坯力学特性对旋锻轴强度和寿命影响的试验研究[J].塑性工程学报,2016,23(3):17-22.LU Xi,LIAO Jinxiong. Experimental study on the effect of blank mechanical properties on the strength and life of rotary swaged shaft[J]. Journal of Plasticity Engineering,2016,23(3):17-22.
[9] GHAEI A,MOVAHHEDY M R,TAHERI A K. Finite element modelling simulation of radial forging of tubes without mandrel[J]. Materials&Design,2008,29(4):867-872.
[10]韩星会,华林,胡亚民.轴类零件径向锻造压入量研究[J].锻压装备与制造技术,2006,41(6):75-78.HAN Xinghui,HUA Lin,HU Yamin. Research on radial feed quantity of shaft parts in radial forging.[J]. China Metal Forming Equipment&Manufacturing Technology,2006,41(6):75-78.
[11]秦敏,李继光,房娃,等.空心车轴径向锻造工艺的模拟研究[J].太原科技大学学报,2008,29(5):373-376.QIN Min,LI Jiguang,FANG Wa,et al. Simulation and research of hollow-axle during the precise forging[J]. Journal of Taiyuan University of Science&Technology,2008,29(5):373-376.
[2] LI R,NIE Z R,ZUO T Y. FEA modeling of effect of axial feeding velocity on strain field of rotary swaging process of pure magnesium[J]. Transactions of Nonferrous Metals Society of China,2006,16(5):1015-1020.
[3] TAHERIZADEH A,NAJAFIZADEH A,SHATERI R,et al.Comparison of mechanical and metallurgical properties of hollow and solid forged products[J]. Journal of Materials Processing Technology,2006,178(s1-3):181-187.
[4] LIM S,NA K,CHOI H,et al. Development of automotive tubular driveshaft using the rotary swaging process[J]. Proceedings of the Institution of Mechanical Engineers,2007,221(9):1401-1405.
[5]卢曦,叶天南.基于成形工艺的轿车旋锻轴强度设计[J].塑性工程学报,2016,23(4):130-135.LU Xi, YE Tiannan. Strength design of monobloc tube shaft based on forming processes[J]. Journal of Plasticity Engineering,2016,23(4):130-135.
[6]高文贵,卢曦,秦文瑜,等.轿车传动半轴含芯棒旋锻工艺中的关键参数[J].塑性工程学报,2014,21(5):57-64.GAO Wengui,LU Xi,QIN Wenyu. Study on the parameters of MTS manufactured by rotary swaging process with mandrel[J].Journal of Plasticity Engineering,2014,21(5):57-64.
[7]秦文瑜,卢曦.无芯棒旋锻工艺参数对传动轴表面质量影响[J].塑性工程学报. 2014,21(6):14-19.QIN Wenyu,LU Xi. The influence of non-cored bar rotary forging process parameters on the surface quality of the transmission shaft[J]. Journal of Plasticity Engineering,2014,21(6):14-19.
[8]卢曦,廖金雄.毛坯力学特性对旋锻轴强度和寿命影响的试验研究[J].塑性工程学报,2016,23(3):17-22.LU Xi,LIAO Jinxiong. Experimental study on the effect of blank mechanical properties on the strength and life of rotary swaged shaft[J]. Journal of Plasticity Engineering,2016,23(3):17-22.
[9] GHAEI A,MOVAHHEDY M R,TAHERI A K. Finite element modelling simulation of radial forging of tubes without mandrel[J]. Materials&Design,2008,29(4):867-872.
[10]韩星会,华林,胡亚民.轴类零件径向锻造压入量研究[J].锻压装备与制造技术,2006,41(6):75-78.HAN Xinghui,HUA Lin,HU Yamin. Research on radial feed quantity of shaft parts in radial forging.[J]. China Metal Forming Equipment&Manufacturing Technology,2006,41(6):75-78.
[11]秦敏,李继光,房娃,等.空心车轴径向锻造工艺的模拟研究[J].太原科技大学学报,2008,29(5):373-376.QIN Min,LI Jiguang,FANG Wa,et al. Simulation and research of hollow-axle during the precise forging[J]. Journal of Taiyuan University of Science&Technology,2008,29(5):373-376.