花键轮精密锻造成形的数值模拟及实验研究  

Numerical simulation and experimental research on precision forging for spline gear

作　　者：赵晨阳[1] 李洪波[1] 韩金成[1] 周天亮[1] 石晓轩 

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《锻压技术》2016年第1期11-15,共5页Forging & Stamping Technology

摘　　要：花键轮不同于一般齿形件的地方在于其内外都带有花键齿,针对内外带齿花键轮的多种精密锻造成形方案进行研究。拟定了使其内、外花键齿都能良好成形的精锻工艺并设计了相应的成形模具,并采用Deform-3D软件进行了数值模拟。模拟结果表明:花键轮内外齿形充填良好,等效应力与应变分布合理,总成形力较小约为279 k N。结合模拟结果与工艺特点分析可知,花键轮内齿相对外齿较难成形,采用分流导流既能使内齿成形好,也能明显降低总成形力。实验结果进一步验证了该工艺与模具很好地改善了较难成形的齿端角隅部的充填效果。The spline gear has both internal and external splines, which is different from the general toothed members. It was studied that the various precision forging processes for the spline gear with internal and external teeth. The precision forging process for forming the qualified internal and external teeth was carried out and the relevant forming mould was designed. The forming process was numerical simulated by Deform- 3D software. Simulation results show that the internal and external spline gear forming is well, the equivalent stress and equivalent strain distribution are reasonable, and the total forming force is about 279 kN, which is very small. Combining the simula- tion results with process characteristics, it is analyzed that the internal teeth forming of this spline gear is more difficult than that of the external teeth. But the usage of the shunt diversion can not only make the internal teeth form well, but also reduce the total forming force significantly. Therefore, the experimental results further verify that the process and mould can greatly improve the filling effect of tooth end corner portion with difficult forming.

关 键 词：精密锻造 数值模拟 花键轮 模具 

分 类 号：TG316[金属学及工艺—金属压力加工]