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轴承钢GCr15加工成滚珠的过程中,半成品表面出现了大量缺陷,通过对缺陷滚珠和原材取样进行金相分析,表明此类缺陷与热处理工艺及原材质量有一定关系。
In the process of ball bearing GCr15 processed into balls, a large number of defects appeared on the surface of the semi-finished products. Metallographic analysis of the samples of the defective balls and raw materials shows that such defects have a certain relationship with the heat treatment process and the quality of the raw materials.