三种模具形式下直齿轮温锻精密成形研究
Precision Forming of the Spur Gear Warm Forging Under Three Forms of Dies
谢晋市，陈文琳，沙奔，唐涛
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作者单位：合肥工业大学材料科学与工程学院
中文关键字：直齿圆柱齿轮；温锻成形；精密成形；数值模拟
英文关键字：spur gear; warm forging; precision forming; numerical simulation
中文摘要：文章选取固定凹模柱塞模式、固定凹模约束分流模式和浮动凹模约束分流模式3种不同模具方案，对直齿轮温锻成形过程进行数值模拟。分析3种模式下的齿轮的成形效果、等效应变分布和成形载荷等信息，确定了改善充填性和降低工作载荷的最佳工艺方案。对最优的方案进行工艺实验验证，实验结果与模拟结果基本吻合，从而为直齿轮温锻成形工艺的实用化提供一定的理论依据。
英文摘要：In this paper, the warm forging of spur gear are simulated by three modes of die which upend forging in fixed cavity, Restrained divided flow in fixed cavity die and Restrained divided flow in floating cavity die. Through the analysis of the information of filling effect, the Effective strain fields and the load, the optimized processes of improving filling and reducing load were determined. The optimal process is experimented and the simulation is in agreement with experimental results. so that certain theory guidance was provided for the application of the process．