CREATING THE MATHEMATICAL MODEL FOR THE SURFACE ROUGHNESS VALUES OCCURRING DURING THE TURNING OF THE AISI 1040 STEEL

In this research, AISI 1040 steel whose hardness is 46 HRc was processed in CNC lathe. Taguchi L16 experiment design was created based on cutting speed, feed rate and depth of cut of which is consisted of four levels. As a result of these experiments, average surface roughness (Ra) values were measured. Multiple regression models for measured Ra values were created by using MINITAB 14 program. The closest results to the experiment results in regression models created for Ra were obtained with the quadratic regression model with the 99.8% coefficient of determination. With the regression models created, it was determined that the most effective parameters are the feed rate parameters. From mathematical equations created in the result of the experiments carried out, it was determined that the quadratic regression equation is approximately 90% correct.

Keywords:

AISI 1040 turning, surface roughness, the multiple regression model.,

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Sigma Mühendislik ve Fen Bilimleri Dergisi-Cover

ISSN: 1304-7191
Yayın Aralığı: Yılda 4 Sayı
Yayıncı: Yıldız Teknik Üniversitesi

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