Investigation of The Effect of Radial Width and Axial Depth Parameters on Surface Quality in Milling of White Marbles

Year 2023, Volume: 23 Issue: 5, 1267 - 1280, 30.10.2023

Erkan Özkan , Oğuzhan Öz , Nazmiye Tuğral

https://doi.org/10.35414/akufemubid.1278609

Abstract

In this study, surface quality and tangential cutting force and radial width (ae) and axial deep (ap)
parameters were investigated in the processing of white marble, which is a natural building material.
Five different white marbles were used in the experiments and the taguchi method was applied as the
test method. Depending on the number and level of parameters, the L9 orthogonal array was chosen.
Cutting forces and surface roughness data were collected for each marble. The optimal level and
contribution percentage of each parameter was determined by applying the analysis of variance with
the signal-to-noise (S/N) ratio. The Fr and Ra factors for all marbles were found to be ae:1 mm and ap:1
mm. Depending on the significance level, axial depth of cut (ap) was the primary effective parameter
(65-86% for Fr; 42-78% for Ra), while radial depth of cut was the secondary effective parameter (3-24%
for Fr; 16-35% for Ra). It can be said that the feed rate parameter was not an effective parameter in
general.As a result of regression analysis, a significant relationship of 83% was observed between Ra
surface roughness value and mineral grain size. Grain size has been the mineralogical-petrographic
feature affecting the surface quality of marbles.

Keywords

Marble, Taguchi method, Surface roughness, Varyans analizi, Axial depth of cut, Radial depth of cut

Beyaz Mermerlerin Frezelemesinde Radyal Genişlik ve Eksenel Derinlik Parametrelerinin Yüzey Kalitesine Etkisinin Araştırılması

Abstract

Bu çalışmada, doğal bir yapı malzemesi olan beyaz mermerin işlenmesinde yüzey kalitesi ve teğetsel
kesme kuvveti ile radyal genişlik (ae) ve eksenel derinlik (ap) parametreleri araştırılmıştır. Deneylerde
beş farklı beyaz mermer kullanılmış ve test yöntemi olarak Taguchi yöntemi uygulanmıştır. Parametre
sayısı ve seviyesine bağlı olarak L9 ortogonal dizisi seçilmiştir. Her bir mermer için kesme kuvvetleri ve
yüzey pürüzlülüğü verileri toplanmıştır. Her bir parametrenin optimum seviyesi ve katkı yüzdesi, sinyal
gürültü (S/N) oranı ile varyans analizi uygulanarak belirlenmiştir. Tüm mermerler için Fr ve Ra faktörleri,
ae:1 mm ve ap:1 mm olarak bulundu. Anlamlılık seviyesine bağlı olarak, eksenel kesme derinliği (ap)
birincil etkin parametre (Fr için 65-86%; Ra için 42-78%), radyal kesme derinliği ikincil etkin parametre
(3-24% for Fr; 16-35% for Ra) olmuştur. İlerleme hızı parametresinin ise genel olarak etkin bir parametre
olmadı söylenebilir. Regresyon analizi sonucunda Ra yüzey pürüzlülüğü değeri ile mineral tane boyutu
arasında %83 oranında anlamlı bir ilişki gözlenmiştir. Tane boyutu, mermerlerin yüzey kalitesini
etkileyen mineralojik-petrografik özellik olmuştur.

Keywords

Mermer, Taguchi yöntemi, Yüzey pürüzlülüğü, Varyans analizi, Eksenel kesme derinliği, Radyal kesme derinliği

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