Investigation of Machinability Characteristics of Al-9Si-0.1Sr-0.6Mg Alloy in Turning

Ali Paşa Hekimoğlu; Şenol Bayraktar

Makale detayları

Investigation of Machinability Characteristics of Al-9Si-0.1Sr-0.6Mg Alloy in Turning

Yazarlar:

Ali Paşa Hekimoğlu | Şenol Bayraktar

Yayıncı:

Kirikkale University

Ana Başlıklar:

Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.517-525

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001284764

pISSN:

1308-5506

Anahtar kelimeler:

Özet:

 The Al-9Si-0.1Sr-0.6Mg alloy examined in this study was produced by the permanent mold casting method. The chemical composition of the produced alloy was confirmed by inductively coupled plasma atomic emission spectroscopy method. Microstructural examinations were carried out on the samples prepared by standard metallographic methods. These samples were examined without etching and photographed. In the metallographic examinations, it was observed that the microstructure of the alloy consisted of primary aluminum Al dendrites, eutectic Al-Si phase regions containing spherical silicon Si particles, primary Si particles, Al4Sr and π phases. Machinability tests were carried out under different cutting speed 250, 400 and 550 mmin, feed rate 0.05; 0.15 and 0.25 mmrev and constant depth of cut conditions using uncoated carbide inserts. The cutting force components were measured with the Kistler 9273 dynamometer and the average surface roughness values were measured with the Mahr Perthometer device with a tracer tip. As a result of the tests, it was determined that the cutting force, average surface roughness and built-up edge formation decreased with the increase of cutting speed, while it increased with the increase of feed rate. It was found that cutting speed of 550 mmin and feed rate of 0.05 mmrev parameters could be used for minimum cutting force, average surface roughness and built-up edge formation.

 The Al-9Si-0.1Sr-0.6Mg alloy examined in this study was produced by the permanent mold casting method. The chemical composition of the produced alloy was confirmed by inductively coupled plasma atomic emission spectroscopy method. Microstructural examinations were carried out on the samples prepared by standard metallographic methods. These samples were examined without etching and photographed. In the metallographic examinations, it was observed that the microstructure of the alloy consisted of primary aluminum Al dendrites, eutectic Al-Si phase regions containing spherical silicon Si particles, primary Si particles, Al4Sr and π phases. Machinability tests were carried out under different cutting speed 250, 400 and 550 mmin, feed rate 0.05; 0.15 and 0.25 mmrev and constant depth of cut conditions using uncoated carbide inserts. The cutting force components were measured with the Kistler 9273 dynamometer and the average surface roughness values were measured with the Mahr Perthometer device with a tracer tip. As a result of the tests, it was determined that the cutting force, average surface roughness and built-up edge formation decreased with the increase of cutting speed, while it increased with the increase of feed rate. It was found that cutting speed of 550 mmin and feed rate of 0.05 mmrev parameters could be used for minimum cutting force, average surface roughness and built-up edge formation.

 The Al-9Si-0.1Sr-0.6Mg alloy examined in this study was produced by the permanent mold casting method. The chemical composition of the produced alloy was confirmed by inductively coupled plasma atomic emission spectroscopy method. Microstructural examinations were carried out on the samples prepared by standard metallographic methods. These samples were examined without etching and photographed. In the metallographic examinations, it was observed that the microstructure of the alloy consisted of primary aluminum Al dendrites, eutectic Al-Si phase regions containing spherical silicon Si particles, primary Si particles, Al4Sr and π phases. Machinability tests were carried out under different cutting speed 250, 400 and 550 mmin, feed rate 0.05; 0.15 and 0.25 mmrev and constant depth of cut conditions using uncoated carbide inserts. The cutting force components were measured with the Kistler 9273 dynamometer and the average surface roughness values were measured with the Mahr Perthometer device with a tracer tip. As a result of the tests, it was determined that the cutting force, average surface roughness and built-up edge formation decreased with the increase of cutting speed, while it increased with the increase of feed rate. It was found that cutting speed of 550 mmin and feed rate of 0.05 mmrev parameters could be used for minimum cutting force, average surface roughness and built-up edge formation.

 Bu çalışmada incelenen Al-9Si-0.1Sr-0.6Mg alaşımı kokil kalıba döküm yöntemiyle üretildi. Üretilen alaşımın kimyasal bileşimi indüktif eşleşmiş plazma atomik emisyon spektroskopisi ICP-OES yöntemiyle doğrulandı. İçyapı incelemeleri standard metalografik yöntemlerle hazırlanan numuneler üzerinde dağlama yapılmadan gerçekleştirildi. Metalografik incelemelerde alaşımın içyapısının birincil alüminyum Al dendritlerinden, küresel morfolojiye sahip silisyum Si parçacıkları içeren ötektik Al-Si faz bölgelerinden, ötektik dışı Si parçacıklarından, Al4Sr ve π fazlarından oluştuğu gözlendi. İşlenebilirlik testleri, kaplamasız karbür kesici uçlar kullanılarak farklı kesme hızı 250, 400 ve 550 mdak, ilerleme 0,05; 0,15 ve 0,25 mmdev ve sabit kesme derinliği şartları altında gerçekleştirildi. Kesme kuvveti bileşenleri, Kistler 9273 dinamometre ve ortalama yüzey pürüzlülüğü değerleri ise izleyici uçlu Mahr Perthometer cihaz ile ölçüldü. Testler sonucunda kesme hızının artması ile kesme kuvveti, ortalama yüzey pürüzlülüğü ve yığıntı talaş YT oluşumu azalırken, ilerlemenin artması ile arttığı belirlenmiştir. Minimum kesme kuvveti, ortalama yüzey pürüzlülüğü ve YT oluşumu için 550 mdak kesme hızı ve 0,05 mmdev ilerleme parametrelerinin kullanılabileceği tespit edilmiştir.

Makale detayları

Investigation of Machinability Characteristics of Al-9Si-0.1Sr-0.6Mg Alloy in Turning

Yazarlar:

Ali Paşa Hekimoğlu | Şenol Bayraktar

Yayıncı:

Kirikkale University

Ana Başlıklar:

Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.517-525

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001284764

pISSN:

1308-5506

Al-9Si-0.1Sr-0.6Mg alloy

Cutting force

Average surface roughness

Built-up edge

Al-9Si-0.1Sr-0.6Mg alaşımı

Kesme kuvveti

Ortalama yüzey pürüzlülüğü

Yığıntı talaş

Sayı

Makale detayları

Yazarlar: Ali Paşa Hekimoğlu | Şenol Bayraktar

Yayıncı: Kirikkale University

Ana Başlıklar: Mechanical Engineering

Dergi: International Journal of Engineering Research and Development Vol.15 Issue 2, pp.517-525

Belge Tipi: Makale

Yayın Tarihi: 7/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001284764

pISSN: 1308-5506

Sayı

Yazarlar:

Ali Paşa Hekimoğlu | Şenol Bayraktar

Yayıncı:

Kirikkale University

Ana Başlıklar:

Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.517-525

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001284764

pISSN:

1308-5506