Experimental and Statistical Investigation of The Effects of Heat-Assisted Turning of AISI 4340 Steel on Dimensional Stability and Surface Roughness

Atakan Uğraş; Fırat Kafkas

Makale detayları

Experimental and Statistical Investigation of The Effects of Heat-Assisted Turning of AISI 4340 Steel on Dimensional Stability and Surface Roughness

Yazarlar:

Atakan Uğraş | Fırat Kafkas

Yayıncı:

Gazi University

Ana Başlıklar:

Kaynak Teknolojileri | İmalat Süreçleri ve Teknolojileri | Makine İle İşleme

Dergi:

Politeknik Dergisi Vol.27 Issue 6, pp.2151-2159

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333520

pISSN:

2147-9429

Anahtar kelimeler:

Özet:

 In this paper, to improve workpiece material dimensional stability properties and surface quality used heat-assisted machining method HAM. Power consumed for cutting Pc, kW and work material temperature Tmr, C were determined by online measurements. In offline measurements deviation value in diameter measurement DDM, µm was determined by measuring workpiece diameter, and surface roughness Ra, µm was measured. Through the HAM method, maximum reduction of 14.43 was achieved in the Pc value. While the DDM value is 80 µm in conventional machining in the same cutting conditions, it decreases to 50 µm in the HAM method. While the surface roughness Ra, µm value is 2,66 µm in conventional machining, it decreases to 2,42 µm in the HAM method. According to the statistical analysis results, the most effective process parameter on the DDM value and surface roughness is the feed rate f. It is followed by the processing method. The HAM method was found to have a significant effect on both. Since preheating cannot be done simultaneously with cutting, the heat produced causes expansion in the volume of the work material. This makes it difficult to machine parts that have precise dimensional tolerances using the TIG-based HAM method.

 In this paper, to improve workpiece material dimensional stability properties and surface quality used heat-assisted machining method HAM. Power consumed for cutting Pc, kW and work material temperature Tmr, C were determined by online measurements. In offline measurements deviation value in diameter measurement DDM, µm was determined by measuring workpiece diameter, and surface roughness Ra, µm was measured. Through the HAM method, maximum reduction of 14.43 was achieved in the Pc value. While the DDM value is 80 µm in conventional machining in the same cutting conditions, it decreases to 50 µm in the HAM method. While the surface roughness Ra, µm value is 2,66 µm in conventional machining, it decreases to 2,42 µm in the HAM method. According to the statistical analysis results, the most effective process parameter on the DDM value and surface roughness is the feed rate f. It is followed by the processing method. The HAM method was found to have a significant effect on both. Since preheating cannot be done simultaneously with cutting, the heat produced causes expansion in the volume of the work material. This makes it difficult to machine parts that have precise dimensional tolerances using the TIG-based HAM method.

 In this paper, to improve workpiece material dimensional stability properties and surface quality used heat-assisted machining method HAM. Power consumed for cutting Pc, kW and work material temperature Tmr, C were determined by online measurements. In offline measurements deviation value in diameter measurement DDM, µm was determined by measuring workpiece diameter, and surface roughness Ra, µm was measured. Through the HAM method, maximum reduction of 14.43 was achieved in the Pc value. While the DDM value is 80 µm in conventional machining in the same cutting conditions, it decreases to 50 µm in the HAM method. While the surface roughness Ra, µm value is 2,66 µm in conventional machining, it decreases to 2,42 µm in the HAM method. According to the statistical analysis results, the most effective process parameter on the DDM value and surface roughness is the feed rate f. It is followed by the processing method. The HAM method was found to have a significant effect on both. Since preheating cannot be done simultaneously with cutting, the heat produced causes expansion in the volume of the work material. This makes it difficult to machine parts that have precise dimensional tolerances using the TIG-based HAM method.

 Bu çalışmada iş malzemesinin boyutsal kararlılık özelliklerini ve yüzey kalitesini iyileştirmek için ısı destekli işleme IDİ yöntemi kullanılmıştır. Çevrimiçi ölçümler yapılarak kesme için harcanan güç Pc, kW ve iş malzemesi sıcaklığı Tmr, C belirlenmiştir. Çevrimdışı ölçümlerde iş parçası çapı ölçülerek çap ölçüsündeki sapma ÇÖS, µm değeri belirlenmiş ve yüzey pürüzlülüğü Ra, µm ölçülmüştür. IDİ yönteminde kesme için harcanan güç Pc değerinde maksimum 14,43 azalma sağlanmıştır. Aynı kesme şartlarında ÇÖS değeri konvansiyonel işlemede 80 µm olarak gerçekleşirken, IDİ yönteminde 50 µm a düşmektedir. Yüzey pürüzlülüğü Ra, µm konvansiyonel işlemede 2,66 µm olarak gerçekleşirken, IDİ yönteminde 2,42 µm a düşmektedir. İstatistiksel analiz sonuçlarına göre ÇÖS ve yüzey pürüzlülüğü üzerinde en etkili işlem parametresi ilerleme oranı f olmuştur. Ancak IDİ yönteminin her ikisi üzerinde önemli bir etkiye sahip olduğu görülmüştür. Ön ısıtma, kesme ile eş zamanlı yapılamadığı için üretilen ısı iş malzemesi hacminde genleşmeye neden olmaktadır. Bu durum TIG esaslı IDİ yöntemini kullanarak hassas boyutsal toleranslara sahip parçaların işlenmesini zorlaştırır.

Makale detayları

Experimental and Statistical Investigation of The Effects of Heat-Assisted Turning of AISI 4340 Steel on Dimensional Stability and Surface Roughness

Yazarlar:

Atakan Uğraş | Fırat Kafkas

Yayıncı:

Gazi University

Ana Başlıklar:

Kaynak Teknolojileri | İmalat Süreçleri ve Teknolojileri | Makine İle İşleme

Dergi:

Politeknik Dergisi Vol.27 Issue 6, pp.2151-2159

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333520

pISSN:

2147-9429

Heat-assisted machining

Dimensional stability

Surface roughness

TIG

AISI 4340Isı destekli işleme

Boyutsal kararlılık

Yüzey pürüzlülüğü

TIG

AISI 4340

Sayı

Makale detayları

Yazarlar: Atakan Uğraş | Fırat Kafkas

Yayıncı: Gazi University

Ana Başlıklar: Kaynak Teknolojileri | İmalat Süreçleri ve Teknolojileri | Makine İle İşleme

Dergi: Politeknik Dergisi Vol.27 Issue 6, pp.2151-2159

Belge Tipi: Makale

Yayın Tarihi: 12/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001333520

pISSN: 2147-9429

Sayı

Yazarlar:

Atakan Uğraş | Fırat Kafkas

Yayıncı:

Gazi University

Ana Başlıklar:

Kaynak Teknolojileri | İmalat Süreçleri ve Teknolojileri | Makine İle İşleme

Dergi:

Politeknik Dergisi Vol.27 Issue 6, pp.2151-2159

Belge Tipi:

Makale

Yayın Tarihi:

12/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001333520

pISSN:

2147-9429