该系统为系统深入地研究管轴压精密成形过程中无模约束自由变形机理和成形规律提供了有效的手段。
It provides an effective approach to further and systematical study of free deformation mechanism and law in tube axial compressive precision forming process.
用压汞法测定了离心成形坯体的孔隙率，曲线呈窄的单峰分布，证明了粉体无团聚。
The results show that the distribution curves are one-humped and concentric, which indicates that the powders have no agglomeration.
介绍了管材无模轴压胀形的实验，研究表明，适度的褶皱有助于提高成形极限。
It has been experimentally indicated that moderate wrinkle will make a contribution to enhancing the formability of the dieless tube hydroforming.
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