由于模锻斜度和圆角半径的存在,模锻件水平方向的尺寸难以直接测量。依靠模具制造的准确性并不能保证锻件尺寸符合设计要求,这是因为终锻温度不同及模具使用磨损等因素都会造成尺寸的偏差,不及时进行测量就可能造成成批的不合格品,因此,必须有一个可靠的测量方法对成品锻件水平方向的理论尺寸进行检定。一种方法是在圆角弧面的某一特定点直 Due to the existence of draft and fillet radius, it is difficult to measure the horizontal dimension of die forging directly. The accuracy of relying on mold manufacturing does not guarantee forgings size to meet the design requirements, which is because the final forging temperature and mold wear and other factors will cause the size of the deviation, not timely measurement may result in batches of unqualified products, therefore, There must be a reliable method of measurement for the theoretical dimension of the finished forgings in the horizontal direction. One way is to be straight at a particular point on the rounded surface