疲劳缺口试样,由于缺口圆角r很小,精度高,工艺难度较大。一般要用价格昂贵的高精度机床来加工。我们将万能工具磨床配置一架机床显微镜,使这一普通机床具备了高精度机床的功能,利用其加工缺口获得成功。本文还从经济效益上对两种工艺方法做了分析对比。 Fatigue gap specimen, because the notch r is small, high precision, process more difficult. Generally use expensive high-precision machine tools to processing. We have a universal machine tool grinder equipped with a machine microscope, so that this ordinary machine with a high-precision machine tool features, the use of its processing gap to be successful. This article also from the economic benefits of the two methods are analyzed and compared.