锻压技术

不同轨迹下摆辗成形规律

英文标题：Laws of rotary forging under different trajectories

作者：孙少东朱春东刘鑫

分类号：TG331

出版年,卷(期):页码：2019,44(10):64-70

摘要：

基于螺旋锥齿轮的摆辗成形技术，结合不同轨迹成形曲线分析，使用有限元分析软件DEFORM-3D对圆轨迹、螺旋线轨迹和玫瑰线轨迹这3种轨迹对齿形填充、轴向载荷、金属流动、损伤因子和温度场5个方面的成形规律做了研究分析，结果表明,3种轨迹下这5个方面的成形均有着明显的不同：玫瑰线轨迹的齿形填充效果最好；圆轨迹的轴向载荷最低且波动相对最小；玫瑰线和螺旋线轨迹下金属可以沿轴向、切向和径向流动，而圆轨迹则只可沿轴、切向流动；工件的损伤因子分布演变规律和温度场演变规律也因3种轨迹下摆头不同的运动方式和变化频率而有所不同。

Based on the rotary forging technique of spiral bevel gears, combining analysis of different trajectory forming curves, the forming laws of three kinds of trajectories including circular, spiral and rose trajectoies on tooth filling, axial load, metal flow, damage factor and temperature field were studied and analyzed by the finite element analysis software DEFROM-3D. The results show that the above five aspects have clear differences under the three different trajectories, and the tooth filling effect of rose trajectory is the best. However, the value and fluctuation of axial load under circular trajectory are the least. Furthermore, the material flows along axial, tangential and radial directions under spiral trajectory and rose trajectory, and the material flows along axial and tangential directions under circular trajectory. Thus, the evolution laws of damage factor and temperature field are also different because of different motion modes and change frequencies of swing head under three kinds of trajectories.

基金项目：

国家自然科学基金资助项目（51875427）

作者简介：孙少东（1993-），男，硕士研究生 E-mail：ssd12345@whut.edu.cn 通讯作者：朱春东（1963-），男，硕士，教授 E-mail：zcdzcd6252@sina.com

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