Pregledni rad
Application of Tribometer Measurements for Evaluation of Machinability
Vlatko MARUŠIĆ
orcid.org/0000-0003-0719-3127
; Strojarski fakultet u Slavonskom Brodu Sveučilišta J. J. Strossmayera u Osijeku, Slavonski Brod, Hrvatska
Bogdan NEDIĆ
; Mašinski fakultet Univerzitet u Kragujevcu,Kragujevac, Serbia
Antun STOIĆ
; Strojarski fakultet u Slavonskom Brodu Sveučilišta J. J. Strossmayera u Osijeku, Slavonski Brod, Hrvatska
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: friction factor 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 (friction factor 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 factor and wear on the block as relevant and representative for real cutting condition.
Ključne riječi
Friction; Machinability; Simulation; Tribometer; Wearing
Hrčak ID:
48308
URI
Datum izdavanja:
31.8.2009.
Posjeta: 1.572 *