Abstract
The texture of different shapes and spacing were machined on the carbide tool surface by laser technology, and the microcrystalline diamond film (MCD film) and nanocrystalline diamond film (NCD film) were deposited on the textured tools by hot filament chemical vapor deposition (HFCVD). The influence of different shape parameters and film types on tribological properties of the textured diamond coated tool was investigated using UMT-2 ball-on-disc friction tester. The surface morphology and wear scar morphology of the textured tool coated were characterized by scanning electron microscopy (SEM). The results showed that the friction coefficient of the narrow groove texture is less and more stable than those of the elliptical texture and the wide groove texture. The friction coefficient of the textured NCD film is generally less than that of the textured MCD film. Besides, for the same film, the more complex shape and the smaller spacing of the texture are, the stronger adhesion strength between the film and the substrate, and debris collection ability of the texture are, the less the friction and wear of the textured diamond film would be.
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