基于Hashin失效准则，在ABAQUS/Explicit中建立碳纤维复合材料的二维正交切削模型。采用此模型研究切削条件对复合材料切削表面质量的影响。模拟得到了崩碎切屑的形成过程、切削力随刀具行程的变化曲线、应力在刀具及工件中的分布，并分析背吃刀量对切削过程中加工表面质量及切屑形貌的影响，从理论上提出改善复合材料切削表面质量的分析方法。
Based on failure criterion of Hashin,the two-dimensional orthogonal cutting model of carbon fiber composite material was presented in ABAQUS/Explicit. Effects of cutting condition on surface quality were analyzed by the model. In two-dimensional cutting simulation,the forming process of break,and the curve of force-tool stroke,and the stress distribution in chip and workpiece were obtained. The effects of tools with back engagement of cutting edge on the cutting process,surface quality and chip morphology were analyzed,and the methods to improve the surface quality of these materials were proposed theoretically.
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