超高强钢大型卷焊毛坯圆筒旋压工艺研究

Research on spinning process of big diameter curling weld billet for ultrahigh strength steel

论述了超高强钢大型薄壁圆筒的变薄旋压试验过程，并对卷焊毛坯设计、热胀校形及旋压工艺参数进行了分析。该工艺与原卷焊工艺相比，可以提高产品的精度和力学性能，同时又不需要采用昂贵的环轧毛坯或离心铸坯，降低了成本，对大型圆筒的加工有一定的参考价值。

This paper discribes spinning process of big diameter curling we;d bo;;et fpr i;trajogj stremgtj steel,andanalyzes design of curling weld billet, process of heat bulging and parameters of spinning process,This processcan increase precision and mechanical properties of the tube, doesn' t need expensive ring roll billet or centrifugal casting billet, and decreases production cost. It has a certain reference value to production of big diametertube.