Abstract
This paper presents some important, recently performed investigations on the laser texturing technology applied to the PCD and PCBN cutting tools and some resulting process outputs including cutting forces, tool wear indexes concerning both rake and flank tool faces. It was documented that the properly texturized tool faces results in a substantial reduction of cutting forces, elimination of the adhesion interaction between the tool and the chip, and reduction of abrasive and diffusion tool wear. The role of additional lubrication supply to the cutting zone with modified contact properties is discussed.
Highlights
Micro-texturing is applied to cutting tool surfaces for a number of reasons, including alteration of adhesion properties (mainly to reduce workpiece material adhesion/build-up edge (BUE) formation), enhancing cutting zone lubrication under different cooling strategies and preventing accelerated tool wear [8, 9]
The matter of fabricating structured cutting tools is further complicated by small dimensions of surface textures, the need to maintain proper dimension and shape tolerances and the fact that cutting tool materials are hard to process due to their high hardness and chemical properties
Laser processing can be employed to produce surface structuring of cutting tools, as it allows for fabrication of structures with various shapes and geometries without the need for special tooling
Summary
This paper presents some important, recently performed investigations on the laser texturing technology applied to the PCD and PCBN cutting tools and some resulting process outputs including cutting forces, tool wear indexes concerning both rake and flank tool faces. It was documented that the properly texturized tool faces results in a substantial reduction of cutting forces, elimination of the adhesion interaction between the tool and the chip, and reduction of abrasive and diffusion tool wear. The role of additional lubrication supply to the cutting zone with modified contact properties is discussed.
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