车用齿轮轴零件精密成形工艺分析及数值模拟

发布时间：2019-03-31 10:26

【摘要】：提出了两种车用齿轮轴零件的冷挤压成形工艺方案,即不带背压装置的方案1与带有背压装置的方案2,同时对带有背压装置的冷挤压模具进行了设计。利用Deform-3D分别建立了两种方案的有限元模型并进行了成形数值模拟。模拟结果表明:采用带有背压装置的方案2时,工件的等效应力、等效应变、损伤值及成形载荷的最大值均小于方案1,同时成形质量较好。方案2比方案1可节材22%,且成形载荷只有方案1的86%。对两种工艺方案分别进行了试验验证,验证结果也显示:采用方案1,齿轮轴零件仍会出现齿端填充不完全等缺陷;而采用方案2,齿端填充完全,未出现表面缺陷。最终得出方案2为较优工艺。
[Abstract]:Two kinds of cold extrusion forming schemes for automotive gear shaft parts are put forward, that is, scheme 1 without back pressure device and scheme 2 with back pressure device. At the same time, the cold extrusion die with back pressure device is designed. The finite element models of the two schemes were established by Deform-3D and the forming numerical simulation was carried out. The simulation results show that the equivalent stress, the equivalent strain, the damage value and the maximum forming load of the workpiece with the back pressure device 2 are lower than that of the scheme 1, and the forming quality is better. Scheme 2 can save 22% of material than that of scheme 1, and the forming load is only 86% of that of scheme 1. The experimental results show that the gear shaft parts will still have some defects such as incomplete filling at the end of the gear shaft, while the tooth end will be filled completely with no surface defects in the case of scheme 2. The experimental results show that the gear shaft parts will still have the defects of incomplete filling at the end of the gear shaft and no surface defects in the gear shaft parts. Finally, it is concluded that scheme 2 is the best process.
【作者单位】：上海工程技术大学材料工程学院;上海东芙格尔冷锻制造有限公司;
【基金】：上海工程技术大学研究生科研创新资助项目(16KY0511);上海工程技术大学科研启动基金项目(校启2015-06);上海工程技术大学产学研合作重大项目((17)CL-003) 上海高校青年教师培养资助计划项目(ZZGCD15035)
【分类号】：TG376

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