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本文通过分析和实验,提出了用能量法来评价刀片抗早期破损能力的观点,文中分析了切削过程的能量转换关系,指出切削过程中的各类能量可以通过实测的宏观物理量—切削力、切削温度等来加以衡量,并建立了表明各类能量之间分配关系的回归方程式。对在实际切削条件下所测得的回归诸元进行分析计算,获得了一个与刀片早期破损具有相关关系的实验参数—临界单位冲击功率 e。由于 e 是在实际切削条件下获得的实验参数,在评价刀片抗早期破损的能力方面,可望比沿用的静态材料力学参数具有更大的优越性。
In this paper, we analyze the energy conversion of cutting process by energy method, and point out that all kinds of energy during cutting process can be measured by the measured macro physical quantity - cutting force, cutting Temperature and so on to be measured, and established a regression equation that shows the distribution of the various types of energy. In the actual cutting conditions were measured under the regression analysis of elements to obtain an experimental correlation with the blade early damage parameters - critical unit impact power e. Since e is the experimental parameter obtained under actual cutting conditions, it is expected to have more advantages than the mechanical parameters of the static material used in evaluating the ability of the blade to resist early damage.