Abstract A locally heat-assisted torsion forming process for metal tubes is proposed and integrated in the conventional dieless drawing process. The part of the tube heated by a laser is subjected to torsion deformation due to the difference in the rotation speed of chucks. Pure aluminum tubes A1050 are used in the experiments, and excessive torsional deformation causes unstable deformation. The microstructure is controlled by the amount of torsion. The strength, ductility, and Lankford value are enhanced by the microstructure control in the proposed process. The process can be applied to the continuous mass manufacturing of metal tubes with high performance.

中文翻译：

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基于微观结构控制的金属管局部热辅助扭转成形改善机械性能

摘要 提出了一种金属管局部热辅助扭转成形工艺，并将其集成到传统的无模拉拔工艺中。被激光加热的管子部分由于卡盘转速不同而发生扭转变形。实验采用纯铝管A1050，扭转变形过大导致变形不稳定。微观结构由扭转量控制。强度、延展性和兰克福德值通过所提出的工艺中的微观结构控制得到增强。该工艺可应用于高性能金属管的连续批量生产。