The development stages of deformation distribution probably are: first the local deformation in the zones adjacent to the contact areas with rolls, then the U shaped pattern with screw advancing and last the W shaped pattern.

• 在大多数情况下 ,二辊斜轧圆管坯变形的发展过程是 :与轧辊接触的局部区域发生变形 ,变形随轧件的螺旋前进 ,先出现 U形分布形态 ,最后出现 W形分布形态