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本文介绍了一种旋压椭圆件的新机构，并对椭圆件的普通旋压及无芯模剪切旋压进行了实验，得出了比较理想的结论，总结出与回转体旋压有所不同的变形规律。
In this paper, we introduce a new mechanism of spherically-shaped oval, and experiment on the ordinary spinning and non-core-type shear spinning of the oval, we come to an ideal conclusion. Different deformation laws.