钢质同步环成形过程中坯料定位方式对于材料流动的影响
Influence of Billet Location Modes on Material Flow in Forming Process of Steel Synchronizer Ring
陈锡侯1, 向 东2, 王梦寒2
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作者单位：（1. 重庆理工大学 机械检测技术与装备教育部工程研究中心，重庆 400050；2.重庆大学 材料科学与工程学院，重庆 400044）
中文关键字：钢质同步环； 数值模拟； 坯料定位方式； 材料流动状态
英文关键字：steel synchronizer ring; numerical simulation; location mode of billet; material flow state
中文摘要：采用有限元数值模拟技术，分别对采用齿根圆定位和齿顶圆定位的钢质同步环的成形过程进行了模拟，分析了不同坯料定位方式下材料流动状态。结果表明，坯料定位方式对金属流动状态影响很大，直接决定成形缺陷是否形成。对于钢质同步环，采用齿腔面定位方式下的材料流动状态明显优于齿根圆定位方式下的材料流动状态，有利于避免成形缺陷的产生。研究结果对于钢质同步环精密成形缺陷控制具有较为普遍的指导意义。
英文摘要：The forming process of steel synchronizer ring was simulated by FEM under two billet location modes of top location mode and bottom location mode, the material flow states under different billet location modes were analyzed. The results show that the billet location modes have a great effect on material flow states, which decide whether the forming defects form. The material flow in steel synchronizer ring under top location mode is better than that under bottom location mode, which greatly benefits defects control. The research result can provide a valuable guidance for the defect control of steel synchronizer ring.