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众所周知,研磨时如果磨料内应力高出金属强度一倍,金属制品的表面就会出现裂纹。应力的大小取决于钢的化学成分及钢中有害物质和气体含量,同时也取决于钢的硬度和显微组织结构特点。第聂伯炼钢厂研究了 GCr15钢105～190mm 方坯在研磨中上述因素对表面裂
It is well known that if the stress inside the abrasive is twice as high as the strength of the metal during grinding, cracks will appear on the surface of the metal product. The size of the stress depends on the chemical composition of steel and steel harmful substances and gas content, but also depends on the hardness and microstructure characteristics of steel. Dnepr steel mill GCr15 steel 105 ~ 190mm billet grinding in the above factors on the surface cracking