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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。
The finite element numerical simulation technique was used to simulate the forming process of the steel synchronizer ring with the root circle positioning and the addendum circle positioning respectively. The flow state of materials under different billet positioning modes was analyzed. The results show that the billet orientation has a great influence on the flow state of the metal and directly determines whether the forming defect is formed. For the steel synchronous ring, the flow state of the material under the tooth cavity surface positioning mode is obviously better than the material flow state under the tooth root circle positioning mode, which is good for avoiding the forming defects. The research results have more general guiding significance for the defect control of precision ring forming of steel synchronous rings.