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用实验方法研究了球形件及椭球形件拉深成形中内皱与拉深力间的关系，获得了球形件临界拉深力和合理压迫力曲线，并讨论了工件尺寸对拉深力函数计算精度的影响。
The relationship between the internal wrinkle and the drawing force in the drawing process of spherical and ellipsoidal parts was studied by experimental method. The critical drawing force and reasonable pressure curve of the spherical part were obtained. The calculation of the drawing force function of the workpiece size The impact of precision.