OPTIMIZATION OF THE SURFACE ROUGHNESS BY APPLYING THE TAGUCHI TECHNIQUE FOR THE TURNING OF STAINLESS STEEL UNDER COOLING CONDITIONS
[ X ]
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Inst Za Kovinske Materiale I In Tehnologie
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This paper presents the optimization of the surface roughness using the Taguchi technique to assess the machinability of the AISI 316Ti steel with PVD coated carbide inserts under different cooling conditions such as dry, conventional (wet) and cryogenic cooling with liquid nitrogen (LN2). Based on the Taguchi L-9 (3(3)) orthogonal-array design, the machinability tests were made utilizing a CNC lathe machine. Test parameters including the cutting speed, the cooling condition and the feed rate were taken and then the surface roughness (R-a) was measured to obtain the machinability indicator. An analysis of variance was performed to determine the importance of the input parameters for the surface roughness. The process parameters were optimized by taking the Taguchi technique into consideration. The Taguchi signal-to-noise ratio was employed with the smaller-the-better approach to obtain the best combination. On the basis of the first-order model, a mathematical model was created using the regression analysis to predict the R-a model. The results indicate that the feed rate is the parameter with the highest effect on the surface roughness and that the other parameters also have a statistical significance. In addition, cryogenic cooling is an alternative method for increasing the surface quality of machined parts.
Açıklama
Anahtar Kelimeler
AISI 316Ti, cryogenic cooling, machinability, optimization, surface roughness, Taguchi method
Kaynak
Materiali in Tehnologije
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
49
Sayı
6
