锻压技术

基于数值模拟的螺旋伞齿轮精密成形工艺参数分析

英文标题：Research on precision forming process parameters of spiral bevel gear based on numerical simulation

作者：冯文杰段红尊陈莹莹张卫青

单位：重庆理工大学

分类号：TG376

出版年,卷(期):页码：2014,39(12):147-150

摘要：

基于塑性有限元分析软件Deform-3D，对螺旋伞齿轮精密成形过程进行数值模拟。针对螺旋伞齿轮结构特点，设计了终锻件，采用内分流挤压成形方案，研究了预制坯锥角、分流间隙、分流面位置对成形质量及成形力的影响。模拟结果表明，预制坯锥角在135°～145°时，成形力较小；分流间隙的变化直接影响成形力的大小，考虑到材料成本，选择分流间隙在8～10 mm为宜；分流面位置应远离凹模齿形部位。通过制定合适的工艺参数，达到降低成形力、提高成形质量的目的。

With the help of finite element analysis software Deform-3D, the precision forming process of spiral bevel gears was simulated. Based on the structural feature of spiral bevel gear, the extruding part was designed. The extrusion forming process with a pothole in the middle to divide metal flow was applied, the influences of the preform cone angle, split gap, split position on forming quality and forming force were analyzed. The simulation results show that the forming force is less when the cone angle of perform is 135°-145°.The forming force is effected by the change of the split gap. Considering the cost of material, the split gap is chosen between 8-10 mm, and the split position is away from tooth shape parts of the die. Defining the suitable optimized parameters can reduce the forming force, and improve the forming quality.

基金项目：

重庆市科学技术委员会资助项目（cstc2014yykfA60001）；重庆市教委科学技术研究资助项目（KJ1400944）

冯文杰（1964-）男，硕士，教授

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