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利用上限元法（ＵＢＥＴ）模拟了圆柱直齿轮径向挤压过程的变形力规律。经验证，所用的计算方法及计算机程序是正确、可行的。模拟结果对生产实践具有重要的指导意义。
The upper bound element method (UBET) was used to simulate the deformation force law of the radial extrusion of cylindrical spur gears. It is verified that the calculation method and computer program used are correct and feasible. The simulation results have important guiding significance for production practice.