http://www.iaeme.com/IJMET/index.asp 633 editor@iaeme.com International Journal of Mechanical Engineering and Technology (IJMET) Volume 9, Issue 1, January 2018, pp. 633–639, Article ID: IJMET_09_01_068 Available online at http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=9&IType=1 ISSN Print: 0976-6340 and ISSN Online: 0976-6359 © IAEME Publication Scopus Indexed DETERMINATION OF EMPIRICAL MATHEMATICAL MODEL FOR TOOL WEAR CURVES BASED ON EXPERIMENTAL DATA Fitore Abdullahu, Nexhat Qehaja*, Fatlume Zhujani Faculty of Mechanical Engineering, University of Prishtina, 1000 Prishtina, Kosovo *Corresponding Author Email: nexhat.qehaja@uni-pr.edu ABSTRACT The use of mathematical models in the experimental analysis of behavior has increased over the years, and they offer several advantages. Mathematical models represent the highest degree of approximation, they are use certain mathematical symbols to mark variables or original parameters. The ratio between independent variables and parameters is presented through logical mathematical relationships. Mathematical models offer the most opportunity to experiment, since they easily change the size of any parameter. Tool wear is often selected as the tool life criterion because it determines the diametric accuracy of machining, its stability and reliability. Tool wear in cutting process is produced by the contact and relative sliding between the cutting tool and the workpiece, and between the cutting tool and the chip under the extreme conditions of cutting area. Therefore, identification and mathematical definition of tool wear curves is of significant importance to keep under control the cutting process in general. Key words: mathematical, cutting, turning, model, wear Cite this Article: Fitore Abdullahu, Nexhat Qehaja, Fatlume Zhujani, Determination of Empirical Mathematical Model for Tool Wear Curves Based on Experimental Data, International Journal of Mechanical Engineering and Technology 9(1), 2018, pp. 633–639. http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=9&IType=1 1. INTRODUCTION The experimental mathematical theory presents a scientific discipline with which scientific research facilities are realized through experiments. This is a fact that, experiments are given an important place in science because, according to the data, 80 to 90% of researchers are experimenting [1]. Until the twentieth century of the last century, the methodology of experimental scientific research methodology was based mainly on intuition, experience and professional