Naslov
Application of Tribometer Measurements for Evaluation of Machinability

Autori
Marušić, Vlatko ; Nedić, Bogdan ; Stoić, Antun

Izvornik
Strojarstvo (0562-1887) 51 (2009), 4; 365-370

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, pregledni rad, znanstveni

Ključne riječi
friction; machinability; simulation; tribometer; wearing

Sažetak
Investigation of machinability of materials is continuously faced with new demands, new principles and new achievements. The outcome of evaluation of machinability presented in this paper resulted out from observation of two tribological parameters: coefficient of friction and width of the wear area on contact between two sliding bodies, blocks and discs. Measurements are performed on tribometer in condition of wet sliding while one body is sliding over the other. A block is made of material which is usually used for cutting tool, and a disc is made of material which is used as a material of workpiece. Achieved contact condition (normal loading and sliding speed) meets real machining-cutting condition. The aim of the tests performed on tribometer “Block on Disc” is to evaluate the opportunity of investigation of materials machinability by tribological parameters (coefficient of friction and width of wear area on the block). Comparison of experimental results obtained during real cutting condition setup and tribological setup show a good correlation between wear values and cutting forces. For certain conditions, it is possible to acquire machinability indexes obtained on a tribometer with respect to friction coefficients and wear on the block as relevant and representative for real cutting condition.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA