This series of products processing capacity is very comprehensive and free control can be two-way bendingmandrel expansion, upper and lower, therefore can be processed more complex shape.
本系列的产品加工能力非常全面可以双向弯曲以及自由伸缩、上下，因此可以加工更多更复杂的形状。
2
The results show that: the springback Angle of bent tube increases with the bending Angle, the gap between mandrel and tube, and the hardening coefficient, but decreases with the hardenability value.
结果表明：回弹角随弯曲角、芯棒与管壁间隙及材料硬化系数的增大而增大，随材料硬化指数的增大而减小。
3
The mandrel(including flexible balls) is the key to improving the forming limit and forming precision in thin-walled tube NC bending process.