试验结果表明，采用液压法成形椭圆产品．不仅规整度高、 产量大，而且节省生产占地面积和提高劳动生产率。
The results show, that using roller forming method not only can improve normalization and forming speed, but can save the work space.
本文根据液压胀形的特点，利用塑性变形原理，提出评定板材成形性能的液压胀形试验法。
According to the character of hydraulic bulge and the theory of plastic deformation, a testing method of hydraulic bulge to evaluate the forming property of sheet metals is put forward.
本文根据液压胀形的特点，利用塑性变形原理，提出评定板材成形性能的液压胀形试验法。
According to the character of hydraulic bulge and the theory of plastic deformation, a testing method of hydraulic bulge to evaluate the forming property of sheet metals is put forward.
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