Features are not easy to break, easy to carry weight is very light, the disadvantage is that the quality of bending deformation is easy to poor.
特点是不易折断、携带方便重量很轻，缺点是容易弯曲变形质量较差。
Springback is one of the main problems which influences the quality of bending and should be considered at the stage of designing the bending die and process.
回弹是影响弯曲件成形质量的主要因素之一，是弯曲模具和弯曲工艺设计要考虑的关键问题之一。
The help in basic theory is provided for improving bender, bending process and the quality of banded pipe.
为改进弯管设备、改善弯管工艺参数和提高弯管质量提供基础理论上的支持。
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