齿轮坯预锻最佳工艺参数研究

Study on the Best Pre Forging Process Parameters of Gear Billet

为了得到某齿轮坯热模锻预锻过程最佳工艺参数(预锻模具温度,坯料加热温度,滑块行程次数)组合,使用正交试验方法设计出多因素多指标无交互作用的数值模拟试验方案,再结合Deform-3D数值模拟技术,根据统计的数值模拟结果进行分析,得出最佳工艺参数组合为:模具温度250℃,坯料加热温度1100℃,滑块行程次数80s/min;并且对最佳组合进行了数值模拟试验验证,结果良好;其中,模拟结果分析从最大成形载荷,最大、最小应变差,最大等效应力,填充情况,锻件最大温度,毛刺或折叠缺陷,损伤值等多个角度进行;最后经生产试制得到满足要求的锻件。

In order to obtain the optimum parameters of pre forging process of gear blank (Pre-forging die temperature, blank heating temperature, slider stroke number) combination, using orthogonal test method to design a numerical simulation scheme without interaction of many factors, combined with the Deform-3D numerical simulation technology, according to the statistical analysis of the simulation results numerical optimum combination, the best combination of parameters: Die temperature of 250 DEG C, the billet heating temperature of 1100 DEG C, slider stroke number 80s/min;and the best combination of numerical simulation experiments, the results are good;And the analysis of simulation results from the maximum forming load, the maximum and minimum strain difference,maximum equivalent stress,Filling situation,Maximum temperature of forgings,burr or folding defects, damage value;Finally, the Forgings that meet the requirements are obtained by production trial.