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三、顯微硬度在金属切削研究方面的应用(1)已加工表面层硬化的研究机器另件的使用性质,在很大程度上决定於另件的表面质量;特别是高速转动的另件,表面质量对另件的耐疲强度及耐磨性都有很大的影响。表面质量由下列三个要素组成,即:微观几何形状、硬化、及残余应力。其中微观几何形状(即表面光洁度),在理论上及实验上都研究得比较完善;而对於硬化及残余应力等物理性
Third, the microhardness in the metal cutting research (1) has been processed surface hardening of the study of the use of other parts of the machine properties, to a large extent depends on the quality of the other parts of the surface; especially high-speed rotation of the other pieces, The surface quality of the other parts of the fatigue strength and wear resistance have a great impact. Surface quality consists of the following three elements, namely: micro-geometry, hardening, and residual stress. Among them, the micro-geometry (ie, surface finish) has been studied theoretically and experimentally. However, for the physical properties such as hardening and residual stress