筒形件强旋胀(缩)径的精确判断

Accurate Judgement of Cylindrical Workpiece's Diametrical Growth (Reduction) During Power Spinning

提出了一种较精确的判断截面胀(缩)径的计算方法,即通过构造样条函数来表示内径切应变的分布规律,然后对切应变积分,求得了整个截面的切向应变总量,最后根据它判断截面的胀(缩)径.

A more accurate calculation method to judge diametrical growth(reduction)is proposed in this paper. This method is to construct a spline function which is used to express tangential strain distribution in inner surface and calculate total tangential strain by integrating the function. Whether the diameter grows or reduces can be defined by integral result.