生产中,常会遇到外形为旋转体,但内孔尺寸又比较大的盲孔类锻件,我们一般采用胎模锻造的方法生产,现将实践中得到的几点体会介绍如下。一般,大孔径盲孔类锻件壁部较薄,所以内孔是锻件成型的关键。在制订工艺时,先根据盲孔尺寸大小、深浅及锻件外形尺寸,确定盲孔成型的方法,然后根据锻件形状的复杂程度确定盲孔成型的先后顺序。 Production, often encounter the shape of the rotating body, but the hole size is relatively large blind hole forgings, we generally use the method for the production of tire forging, now the practice of the experience obtained are described below. In general, large-diameter blind hole forgings wall thickness thinner, so the hole is the key forging forging. In the process of making the design, the method of forming the blind hole is first determined according to the size, depth and shape of the blind hole, and then the order of the forming of the blind hole is determined according to the complexity of the shape of the forging.