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在连续切削的条件下，Ａｌ２Ｏ３基陶瓷刀具的失效形式是以磨粒磨损为主的磨损失效，其磨损寿命服从对数正态分布。提出了利用 Ｍｏｎｔｅ Ｃａｒｌｏ方法同切削试验相结合的方法计算Ａｌ２Ｏ３基陶瓷刀具磨损寿命的经典可靠度与模糊可靠度。结果表明刀具材料的断裂韧度对两种可靠度的影响都较为明显，因而可以利用断裂韧度来估算磨损寿命可靠度。模糊可靠度的计算结果更为合理。
Under the condition of continuous cutting, the failure mode of Al2O3-based ceramic cutting tools is abrasive wear-based wear failure, whose wear life obeys lognormal distribution. A Monte Carlo method combined with cutting test is proposed to calculate the classical reliability and fuzzy reliability of the wear life of Al2O3-based ceramic tool. The results show that the fracture toughness of the tool material has more obvious influence on the two kinds of reliability, so the fracture toughness can be used to estimate the reliability of wear life. Fuzzy reliability calculation results more reasonable.