Investigation of Roughness Properties of Fiberboard Cut with Different Parameters in Abrasive Water Jet System

Öz

In this study, it was aimed to determine the edge roughness properties of medium density fiberboard (MDF) samples cut with different processing parameters in the abrasive water jet (AWJ) system. Fiberboards with thicknesses of 18, 36 and 54 mm were cut with ASJ system at feed rates of 50, 100 and 200 mm/min; abrasive mass flow rates of 200, 300 and 450 g/min; cutting liquid pressures of 300 and 380 MPa. Cutting surface properties of the samples were determined by analyzing Ra, Rq and Rz roughness values. According to the results of the study, roughness properties increased due to the increase in fiberboard thickness and AWJ feed rate. On the other hand, roughness values generally showed a decreasing trend with the increase in abrasive amount and cutting liquid pressure. However, it was determined that the sheet thickness and AWJ feed rate parameters were of primary importance in the roughness properties of the samples, while the abrasive flow rate and cutting liquid pressure parameters were of less importance.

Anahtar Kelimeler

• Abrasive water jet
• cutting parameters
• fiberboard
• roughness properties

Aşındırıcı Su Jeti Sisteminde Farklı Parametrelerle Kesilmiş Lif Levhanın Pürüzlülük Özelliklerinin İncelenmesi

Öz

Bu çalışmada, aşındırıcı su jeti (ASJ) sisteminde farklı işleme parametreleri ile kesilen orta yoğunluklu lif levha (MDF) örneklerin kenar pürüzlülük özelliklerinin belirlenmesi amaçlanmıştır. 18, 36 ve 54 mm kalınlıklarında hazırlanmış olan lif levhalar, ASJ sistemi ile 50, 100 ve 200 mm/dk ilerleme hızı; 200, 300 ve 450 gr/dk aşındırıcı kütle akış oranı; 300 ve 380 MPa kesici sıvı basıncı uygulanarak kesilmiştir. Örneklerde kesim yüzeyi özellikleri Ra, Rq ve Rz pürüzlülük değerleri analiz edilerek belirlenmiştir. Çalışma sonuçlarına göre, lif levha kalınlığı ve ASJ ilerleme hızı artışına bağlı olarak pürüzlülük özellikleri de artmıştır. Diğer taraftan, aşındırıcı miktarı ve kesici sıvı basıncındaki artış ile pürüzlülük değerleri genel olarak azalma eğilimi göstermiştir. Ancak, örneklerin pürüzlülük özelliklerinde levha kalınlığı ve ASJ ilerleme hızı parametreleri birinci derecede öneme sahipken, aşındırıcı akış oranı ve kesici sıvı basıncı parametrelerinin daha az bir öneme sahip olduğu belirlenmiştir.

Anahtar Kelimeler

• Aşındırıcı su jeti
• kesme parametreleri
• lif levha
• pürüzlülük özellikleri

Kaynakça

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