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筒形件强力旋压中的扩口或称为“喇叭口”(如图1所示)是旋压中的主要缺陷,严重地影响旋压件良品率的提高。因此,减小扩口的长度或防止扩口段的形成是旋压工艺需解决的问题。
The flaring or the “bell mouth” (shown in Figure 1) in the strong spinning of the cylindrical part is the main flaw in the spinning, which seriously affects the yield of the spinning part. Therefore, reducing the length of the flared section or preventing the flared section from forming is a problem to be solved by the spinning process.