Finite Element Analysis Of The Contact Stress For Indexable Cutting Tools

The contact issue is a highly non-linear problem, it need enormous computer resource. ANSYS is a well-known Finite Element Analyses software, it is widely used in modeling, configuration analysis, non-linear analysis, electromagnetism analysis, hydrodynamics analysis, contact analysis, piezoelectricity analysis and structure optimization, etc. The indexable cutting tools are widely used in the modern automatization machining system. This kind of cutting tools has higher cutting efficiency and fewer assistant time compared to the traditional cutting tools. Specially, the indexable cutter is reusable, so it can save the cost greatly. This paper mainly analyzed the contact stress between the cutting edge and holder slot for the indexable cutting tool.The research used the parametric design language APDL to found the simulation model applying ANSYS. Based on the appointed function, variable and analyzing style, the analysis programme was compiled to accomplish the optimize design and the auto-adapted grid of the model. The planar and the three-dimensional model of the cutting edge and holder slot in the indexable cutting tool were developed. All the relationship in the structure design process was synthesized in the programme. Controlled by the program, the modeling and analysis were expediently completed through user interface.The Cemented Carbide indexable cutting edges and the Ceramic indexable cutting edges were analyzed in this paper. Through the finite element simulation based on ANSYS, the cutting edge angle and the contact surfaces were changed, the cutting force and clamping force were added, then at last the stress field was got .The results show how pressure and shear stresses distributes on the contact surfaces between the insert and the tip seat in the tool and the maximal contact stress was calculated. The result becomes easier to design the insert and tool to prevent that plastic deformation and fatigue failure occurs and to ensure good function. The research in this paper is advantageous to the deeply study of the mechanical performance in the cutting process. The results are also a reference for the indexable tool and the holder optimization design.