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对于需要压装衬套的一些零件,由于衬套(被包容件)外径与压装衬套的零件(包容件)的内孔直径之间是过盈配合,压装时,即产生一周向压应力,在该压应力的作用下,引起了压装衬套零件外径尺寸产生变化,这将直接影响到零件的精度,对一些高精度的零件会因此而造成废品。为此,对压装衬套的零
For some parts that need to be press-fitted, since there is an interference fit between the outer diameter of the bushing (contained part) and the bore diameter of the part (containing part) of the press-fitted bushing, a circumferential direction The compressive stress, under the action of the compressive stress, causes the change of the outer diameter dimension of the press-fitted bushings, which will directly affect the precision of the parts, resulting in the waste of some high-precision parts. To do this, press fit the bushing of the zero