在自由锻实践生产中经常会碰到这种类型的锻件,即矩形截面,长度较长的扁方长锻件(长度超过矩形截面最大尺寸的十倍或更长)。对于这种类型的锻件,在锻造作业时并不困难,因复杂程度低,一般三级锻工足可以锻制出合格的锻件来。这里所要谈的中心关键问题,是如何根据锻件的截面尺寸,选择合适的 Often this type of forgings are encountered in free-forging practice, ie, square-shaped, long-length, flat forgings (ten times longer or longer than the largest dimension of the rectangular cross-section). For this type of forging, forging operation is not difficult, because of the complexity is low, the general three forging enough forging out of qualified forgings. Here we want to talk about the key issue is how to cross-sectional size of forgings, choose the right