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Experimental determination of the surface geometrical structure parameters and tool wear during turning the polymer concrete

Kępczak N., Rosik R.

Mechanics and Mechanical Engineering

2020

Vol. 24, nr 1

1--6

The paper presents the results of experimental determination of the Surface Geometrical Structure (SGS) parameters and tool wear during turning the polymer concrete. Until now, all literature reports have shown that the smoothness and roughness of the mineral cast surfacewas obtained directly from the mold. However, new applications of polymer concrete, even for some parts of the machine tools, forced the producers to carry out machining, which would improve the parameters of the surface layer. The topic of machining ceramic-based composite materials is a new chapter in the field of machining, which has not been sufficiently researched so far. The article describes the process of experimental determination of dependence of surface layer and tools wear parameters from cutting parameters during longitudinal turning of polymer concrete. The turning was carried out using plates made of a cubic boron nitride (CBN). After machining, the surface roughness and the maximum width of the flank wear were measured. On this basis, the mathematical model of the surface layer and tools wear parameters versus cutting parameters were defined. The authors also attempted to explain the phenomena occurring in the machining zone using variable cutting parameters. Microscopic pictures of CBN plates after machining were also performed. After the study, the final conclusions about the machining of mineral cast material were formulated.

The influence of tribological characteristics of coated tools on cutting process and the parameters of surface layer

Bezjazychnyj V. F., Fomenko R. N.

Scientific Problems of Machines Operation and Maintenance

2009

Vol. 44, nr 3

7-14

The influence of wear-resistant coatings having different friction coefficients on a cutting force, chip thickening coefficient, coefficient of chip friction on the face of a tool and temperature in the cutting zone have been researched.

Przedstawiono wyniki badań wpływu powłok przeciwzużyciowych, wykazujących zróżnicowane współczynniki tarcia na siłę skrawania, tarcie wióra na powierzchni narzędzia skrawającego oraz temperaturę w strefie obróbki.