New near-net-shape working method for shaft's cross sections partially enlarged and controlled by cyclic bending and axial compressive loading through metal molds

提出了一种新的近净形加工方法，应用于原有的扩径加工方法。轴的横截面部分扩大，并通过金属模具通过循环弯曲和轴向压缩载荷进行控制。该方法仅在一次加工过程中实现接近理想形状的外部尺寸，而无需后续切割工作。

A new near-net-shape working method, applied to the diameter-enlargement processing method developed originally, has been proposed. A shaft's cross sections is partially enlarged and controlled by cyclic bending and axial compressive loading through a metal mold. The method achieves the outside dimension near an ideal shape during the only one process without a subsequent cutting work.