【摘要】 利用螺旋副模型推导出内螺旋凸筋管成形时螺旋升角的临界值,该临界值与实验结果相符合,并为内螺旋凸筋管的模具设计提供了依据。更多还原

【Abstract】 The critical value of the spiral raising angle during the formation of an internal spiral-ribbed tube is derived with the model of spiral pair. It is coincident with the experiment result, which hence provides references for designing dies for internal spiral-ribbed tubes.更多还原