MRR, EWR and KERF Analysis in cold work tool steel machining in EDM method by copper and brass electrode

Ferhat Ceritbinmez; Elif Simay Gökkaya; Erdoğan Kanca

Makale detayları

MRR, EWR and KERF Analysis in cold work tool steel machining in EDM method by copper and brass electrode

Yazarlar:

Ferhat Ceritbinmez | Elif Simay Gökkaya | Erdoğan Kanca

Yayıncı:

Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar:

Makine Mühendisliği

Dergi:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.35-51

Belge Tipi:

Makale

Yayın Tarihi:

10/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001284828

pISSN:

2687-3729

Anahtar kelimeler:

Özet:

 In this study, holes were drilled on the Sleipner cold work tool steel with a hardness of 60-62 HRC by copper and brass electrodes using three different current values 50, 25, 12.5 A, pulse on times 3, 6, 9 μs and pulse off times 4, 6, 8 μs parameters in the EDM method; the effects of these working parameters on machining times, material removal rate MRR, electrode wear rate EWR, the hole inlet-outlet diameters of the machined parts, the kerf on workpiece and electrode were analyzed. As a result of the analyzes made, in the use of copper electrodes, the MRR increased by 311.25 on average compared to the use of brass electrodes, while the EWR and machining time decreased by 42.01 and 38.46, respectively. The increase in sparking and thermal effects between the workpiece and the electrode resulted in an increase in the MRR and a decrease in the machining time. In the use of copper and brass electrodes with different processing parameters, the inlet diameters of the drilled holes were found to be larger than the outlet diameters as well as an irregular kerf formation was observed due to debris evacuation due to worn electrodes.

 In this study, holes were drilled on the Sleipner cold work tool steel with a hardness of 60-62 HRC by copper and brass electrodes using three different current values 50, 25, 12.5 A, pulse on times 3, 6, 9 μs and pulse off times 4, 6, 8 μs parameters in the EDM method; the effects of these working parameters on machining times, material removal rate MRR, electrode wear rate EWR, the hole inlet-outlet diameters of the machined parts, the kerf on workpiece and electrode were analyzed. As a result of the analyzes made, in the use of copper electrodes, the MRR increased by 311.25 on average compared to the use of brass electrodes, while the EWR and machining time decreased by 42.01 and 38.46, respectively. The increase in sparking and thermal effects between the workpiece and the electrode resulted in an increase in the MRR and a decrease in the machining time. In the use of copper and brass electrodes with different processing parameters, the inlet diameters of the drilled holes were found to be larger than the outlet diameters as well as an irregular kerf formation was observed due to debris evacuation due to worn electrodes.

 In this study, holes were drilled on the Sleipner cold work tool steel with a hardness of 60-62 HRC by copper and brass electrodes using three different current values 50, 25, 12.5 A, pulse on times 3, 6, 9 μs and pulse off times 4, 6, 8 μs parameters in the EDM method; the effects of these working parameters on machining times, material removal rate MRR, electrode wear rate EWR, the hole inlet-outlet diameters of the machined parts, the kerf on workpiece and electrode were analyzed. As a result of the analyzes made, in the use of copper electrodes, the MRR increased by 311.25 on average compared to the use of brass electrodes, while the EWR and machining time decreased by 42.01 and 38.46, respectively. The increase in sparking and thermal effects between the workpiece and the electrode resulted in an increase in the MRR and a decrease in the machining time. In the use of copper and brass electrodes with different processing parameters, the inlet diameters of the drilled holes were found to be larger than the outlet diameters as well as an irregular kerf formation was observed due to debris evacuation due to worn electrodes.

 Bu çalışmada, 60-62 HRC sertliğe sahip Sleipner soğuk iş takım çeliğine EEİde bakır ve pirinç elektrotlarla üç farklı akım değeri 50, 25, 12,5 A, üç farklı ark süresi 3, 6, 9 μs ve bekleme süreleri 4, 6, 8 μs kullanılarak delikler delinmiş, bu çalışma parametrelerinin operasyon sürelerine, talaş kaldırma oranına TKO ve elektrot aşınma oranına EAO, işlenen parçaların delik giriş-çıkış çaplarına, iş parçası ve elektrot üzerindeki kerfe etkileri analiz edilmiştir. Yapılan analizler neticesinde, bakır elektrot kullanımında TKO pirinç elektrot kullanımına göre ortalama 311,25 artarken, EAO ve işleme süresi sırasıyla 42,01 ve 38,46 oranında azalmıştır. İş parçası ile elektrot arasındaki kıvılcımlanmanın ve termal etkilerin artması TKOnun artması ve işleme süresinin azalmasını sağlamıştır. Farklı işleme parametreleriyle bakır ve pirinç elektrot kullanımında delinen deliklerin giriş çaplarının çıkış çaplarından büyük olduğu görülmüş, aşınan elektrotlar sebebiyle debris tahliyesine bağlı olarak düzensiz bir kerf oluşumuna rastlanmıştır.

Makale detayları

MRR, EWR and KERF Analysis in cold work tool steel machining in EDM method by copper and brass electrode

Yazarlar:

Ferhat Ceritbinmez | Elif Simay Gökkaya | Erdoğan Kanca

Yayıncı:

Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar:

Makine Mühendisliği

Dergi:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.35-51

Belge Tipi:

Makale

Yayın Tarihi:

10/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001284828

pISSN:

2687-3729

EDM

MRR

EWR

KERF

SLEİPNER

EEİ

TKO

EAO

KERF

SLEİPNER

Sayı

Makale detayları

Yazarlar: Ferhat Ceritbinmez | Elif Simay Gökkaya | Erdoğan Kanca

Yayıncı: Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar: Makine Mühendisliği

Dergi: Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.35-51

Belge Tipi: Makale

Yayın Tarihi: 10/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001284828

pISSN: 2687-3729

Sayı

Yazarlar:

Ferhat Ceritbinmez | Elif Simay Gökkaya | Erdoğan Kanca

Yayıncı:

Osmaniye Korkut Ata Üniversitesi

Ana Başlıklar:

Makine Mühendisliği

Dergi:

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.6 Issue 1, pp.35-51

Belge Tipi:

Makale

Yayın Tarihi:

10/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001284828

pISSN:

2687-3729