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

针对原有的扩径加工方法，提出了一种新的近净形加工方法。通过金属模具的循环弯曲和轴向压缩载荷，轴的横截面被部分放大和控制。该方法只需一次加工即可获得接近理想形状的外形尺寸，无需后续的切割工作。

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.