Investigation of Sloping Cuts in Abrasive Water Jet

Year 2019, Volume: 19 Issue: 2, 480 - 489, 17.09.2019

Mustafa Armağan , A. Armağan Arıcı

Abstract

Abrasive Water Jet (AWJ)
cutting method is a non-traditional material cutting method which has been
increasing its use in various branches of industries in recent years. The AWJ
method is usually used in the cutting of materials in the metal and mining
industries. In this study, polymer matrix composite materials ( glass fiber
reinforced vinyl ester composite) which is another type of material are cut by
AWJ method. AWJ nozzle is one of the main components of AWJ machine and the
effects of nozzle angle on the cutting performance were investigated by keeping
it at various slope angles. According to seven different slope angles, work
material was cut. The average surface roughness values of the cutting surfaces
were measured by optical profilometer. On the cutting surface, initial and zone
average surface roughness was defined. At 87.5° and 82.5° slope angles of
nozzle, it was found improvement effect for both surface roughness values. In
addition, the effects of slope angles were examined by SEM images and the
improvement effects of sloping cuts were shown.

Keywords

Abrasive water jet, Sloping cuts, ; Glass fiber reinforced vinyl ester composite, Surface roughness, Scanning electron microscope

Aşındırıcılı Su Jetinde Eğimli Kesimin İncelenmesi

Abstract

Çeşitli sanayi
kollarında son yıllarda kullanımı giderek artan Aşındırıcılı Su Jeti (ASJ) ile
işleme yöntemi, geleneksel olmayan (alışılmamış) bir malzeme işleme yöntemidir.
ASJ ile işleme yöntemi genellikle maden ve metal endüstrisinde malzemelerin
kesilmesinde kullanılmaktadır. Bu çalışmada diğer bir malzeme türü olan polimer
matrisli kompozit malzemeler (cam fiber takviyeli vinil ester kompozit) ASJ
yöntemi ile kesilmiştir. ASJ tezgâhının ana unsurlarından biri olan ASJ
nozulunun, çeşitli eğim açılarında tutulmasıyla kesme performansına etkileri
araştırılmıştır. Yedi farklı eğim açısına göre kesilen malzemenin kesme
yüzeylerinin ortalama yüzey pürüzlülükleri değerleri optik profilometre
aracılığıyla ölçülmüştür. Kesme yüzeyi üzerinde başlangıç ve bölge ortalama
yüzey pürüzlülüğü tanımlanmış, nozulun 87,5° ve 82,5° eğim açısında her iki
yüzey pürüzlülüğünü iyileştirici etkisi bulunmuştur. Ayrıca eğim açılarının
etkileri SEM görüntüleri ile incelenmiş, eğimli kesimin iyileştirici etkileri
gösterilmiştir. 

Keywords

Aşındırıcılı su jeti, Eğimli kesim, Cam fiber takviyeli vinil ester kompoziti, Yüzey pürüzlülüğü, Taramalı elektron mikroskobu

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