前言胀形法一直用于生产管子与自行车零件。由于成形件强度良好,所以这种方法近来已用于加工复杂形状的大型机械零件。在进行胀形前,必须事先推定胀形件壁厚减薄量。众所周知,如果在胀形过程中外加一个适当的轴向压缩负荷,就可以防止壁厚减簿。但是,至今还未见到过定量地研究轴向压缩负荷对壁厚减薄量影响的资料。 Foreword Bulging method has been used to produce pipe and bicycle parts. This method has recently been used to machine large mechanical parts of complex shapes due to the good strength of the shaped parts. Before bulging, you must pre-estimate the amount of bulging wall thickness. It is well-known that wall thickness reduction can be prevented if an appropriate axial compressive load is applied during bulging. However, to date, no quantitative study has been done on the effect of axial compressive load on wall thickness reduction.