本文对套圈辗扩时经常出现的几种疵病,如端面凹心、一个端面凹心而另一端面有毛刺、两端面有毛刺、锻件不圆、有锥度、内径有凹度、圆角充不满、扭曲、夹扁和内径沟偏等缺陷产生的原因进行了分析,并提出了消除疵病的方法。 In this paper, several defects often appear when ring rolling, such as face concave, one face concave and the other face burr, two ends with burrs, forgings are not round, with a taper, diameter concave, fillet The causes of defects such as dissatisfaction, distortion, clamped flatness and inner diameter groove deviation were analyzed and some methods to eliminate flaws were put forward.