自适应增量弯曲特征线方程的建立思想，对于实现零件数控弯曲成形过程是可行的。
The ways of founding the characteristic line equation for adaptive incremental bending is feasible to realize numerical control of the bending process.
管材与不同部位模具间隙是影响薄壁管数控弯曲过程成形极限和成形质量的重要因素。
Clearance between tube and various dies is of great importance to influence forming limit and quality during thin-walled nc bending process.
薄壁管数控弯曲中带芯头的柔性芯模是提高薄壁管件成形极限和成形精度的关键因素。
The mandrel(including flexible balls) is the key to improving the forming limit and forming precision in thin-walled tube NC bending process.
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