中文摘要：

分析了花键冷滚压成形过程，对冷滚压精密成形过程的单位平均压力、冷滚压接触面积和滚压力进行了分析与计算。在此基础上，建立了花键冷滚压过程的力学模型与数学模型，并对花键冷滚压成形过程进行了数值模拟。通过对理论分析、数值模拟和试验研究的对比分析，为花键冷滚压成形工艺的研究与应用提供了理论依据。

英文摘要：

The cold roll forming process of spline has been analyzed.The unit average pressure, contact area and rolling force in the precise cold roll forming process have been analyzed and solved.The mechanical and the mathematical model have been set up on the basis of the analysis with the numerical simulation of spline cold rolling process carried out.The result is obtained by comparison of theoretical analysis,numerical simulation and experiment, which provides a theoretical basis for the study and application of spline in cold rolling process.