基于正交试验花键冷挤压成形过程参数分析

为保证花键的成形质量，减小模具的试模成本，利用DEFORM-3D软件模拟花键的冷挤压成形过程，采用正交试验对下压速度、摩擦因数和凹模初始硬度参数进行优化分析；利用最优参数对成形载荷及凹模磨损深度的影响规律进行探讨，验证其正交试验结论。结果表明，使成形载荷和花键凹模磨损程度最优的参数组合为摩擦因数0.08和凹模初始硬度63 HRC。该分析为实际生产提供了理论参考，具有一定的指导作用。

Parametric Analysis of Spline Cold Extrusion Process Based on Orthogonal Test

In order to ensure the forming quality of the spline and reduce the cost of the mold, the DEFORM-3D software is used to simulate the cold extrusion forming process of the spline.Based on the orthogonal test design, the pressing speed and friction coefficient, and the initial hardness parameters of the die are optimized.The influence of the optimal parameters on the forming load and the wear depth of the die is discussed.The orthogonal test results are verified.The results show that the optimal parameters for forming load and spline die wear are combined to a friction factor of 0.08 and a die initial hardness of 63 HRC, which optimizes the quality of the formed spline and provides a theoretical basis and valuable reference for actual production.