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借助扫描电子显微镜观察和分析了用刚玉砂轮磨削 GH4169高温合金的磨削表面形貌。通过试验,研究了GH4169高温合金表面粗糙度与加工参数间的关系;根据正交试验建立了磨削表面粗糙度的经验公式;分析了加工表面粗糙度对 GH4169高温合金疲劳寿命的影响规律。
The grinding surface morphology of GH4169 superalloy was observed and analyzed by scanning electron microscope. Through the experiment, the relationship between the surface roughness of GH4169 superalloy and the processing parameters was studied. The empirical formula of the grinding surface roughness was established based on the orthogonal test. The influence of the machined surface roughness on the fatigue life of GH4169 superalloy was analyzed.