Optimization of surface roughness in turning Mg2Si particle reinforced magnesium
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Dosyalar
Tarih
2018
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Gazi Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada, Mg2Si takviyeli Mg alaşımı malzeme, geleneksel döküm yöntemiyle ergiyik halde Mg matrise %10 oranında ilave edilen Al-12Si ana alaşımı içindeki Si ile Mg reaksiyona girerek Mg2Si takviyesini oluşturarak metal kalıba dökülerek üretilmiştir. Silindirik şekilde üretilen malzemeler üzerinde tornalama yöntemiyle işleme deneyleri yapılmıştır. Kesme parametrelerinin yüzey pürüzlülüğü üzerindeki etkileri araştırılarak optimum işleme şartlarının belirlenmesi amaçlanmıştır. Bu amaçla dört farklı kesme hızı (250, 350, 450 ve 550 m/dak), iki farklı ilerleme değeri (0,1 ve 0,2 mm/dev) ve iki farklı kesici takım uç yarıçapı (0,4 mm ve 0,8 mm) kullanılarak Taguchi’nin L8 dikey dizini ile deney tasarımı yapılmıştır. İşleme deneyleri kuru kesme şartlarında CNC torna tezgâhında gerçekleştirilmiştir. Kesme parametrelerinin yüzey pürüzlülüğü üzerine etkisini belirlemek amacıyla varyans analizi (ANOVA) yapılmıştır. Elde edilen analiz sonuçlarına göre yüzey pürüzlülüğü üzerinde % 57,6 katkı oranı ile en etkin parametrenin ilerleme hızı olduğu tespit edilmiştir.
In this study, Mg2Si reinforced Mg alloy material was produced by adding 10 % Al12Si alloy ingot to Mg matrix by conventional casting method and then the melt was poured into a metal mould in cylindrical form. Machining tests were carried out on these cast alloys through single point turning method. Optimum machining conditions was aimed to be determined by investigating the effects of cutting parameters on surface roughness. For this purpose, the machining tests were performed without coolant on a CNC turning centre at four different cutting speeds (250, 350, 450 and 550 m/min), two different feed rates (0.1 and 0.2 mm/rev) and two different tool tip radii (0.4 mm ve 0.8 mm). The experimental design was conducted according to Taguchi's L8 orthogonal array. Machining experiments were carried out on CNC lathe under dry cutting conditions. ANOVA was used to determine the effect of cutting parameters on the surface roughness. According to the obtained analysis results, it was seen that the most influential parameters on surface roughness was feed rate by 57.6 %.
In this study, Mg2Si reinforced Mg alloy material was produced by adding 10 % Al12Si alloy ingot to Mg matrix by conventional casting method and then the melt was poured into a metal mould in cylindrical form. Machining tests were carried out on these cast alloys through single point turning method. Optimum machining conditions was aimed to be determined by investigating the effects of cutting parameters on surface roughness. For this purpose, the machining tests were performed without coolant on a CNC turning centre at four different cutting speeds (250, 350, 450 and 550 m/min), two different feed rates (0.1 and 0.2 mm/rev) and two different tool tip radii (0.4 mm ve 0.8 mm). The experimental design was conducted according to Taguchi's L8 orthogonal array. Machining experiments were carried out on CNC lathe under dry cutting conditions. ANOVA was used to determine the effect of cutting parameters on the surface roughness. According to the obtained analysis results, it was seen that the most influential parameters on surface roughness was feed rate by 57.6 %.
Açıklama
Anahtar Kelimeler
Mg Alloy, Surface Roughness, Taguchi Method, Anova
Kaynak
Journal Of Polytechnic - Politeknik Dergisi
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
21
Sayı
3
