AN EXPERIMENTAL STUDY ON THE EFFECT OF PREHEATING TEMPERATURE ON HARDNESS OF EXTRUDED AA6060 PROFILES
Öz
In aluminum alloys, hardness values are an important reference for the machinability of the material. 6xxx series aluminum alloys are the most widely used alloy type in the extrusion industry. The billet preheating temperature plays an important role for improving the visual and mechanical properties of 6060 alloys. The preheating temperature directly affects the extrusion temperature. By precisely controlling the extrusion temperature and using appropriate heat treatment processes, the desired hardness values and mechanical properties can be achieved. In this experimental study using AA6060 alloy, the effect of billet preheating temperatures on hardness in the extrusion process was experimentally investigated. As a result of the study, the highest hardness values were measured at 430.3 °C (59.07 HB) and 440.2 °C (60.14 HB). In this case, it is shown that there is no practical benefit of increasing the preheating temperatures above 440.2 °C for this study. Considering the energy and cost relationship for heating, there is practically no need to increase the preheating temperature after 440.2 °C, because there is no significant increase in the hardness results. Therefore, this study demonstrates the importance of preheating temperature analysis for extrusion profile plants, especially when large quantities are produced.
Anahtar Kelimeler
Proje Numarası
Kaynakça
- Akyüz, B. and Şenaysoy, S. (2014) Alüminyum alaşımlarında yaşlandırma işleminin mekanik özellikler ve işlenebilirlik üzerindeki etkisi, Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi, 1(1), 1-9.
- Al-saadı, H. I. A. and Tunay, R. F. (2017) Suni yaşlandirma işleminin alüminyum alaşiminin sertliği üzerine etkisi, Mühendislik Bilimleri ve Tasarım Dergisi, 5(3), 525-532.
- Amado, M. N. and Daroqui, F. (2015) Revision of the solvus limit of Al-Mg2Si pseudo binary phase diagram, Procedia Materials Science, 8, 1079-1088. https://doi.org/10.1016/j.mspro.2015.04.171
- Ammu, V. V., Raju, I., Chouhan, R. N. and Agnihotri, A. (2024) Effect of ram speed on surface quality and mechanical properties during extrusion of AA2024 alloy, Materials Today: Proceedings, 113, 258-263. https://doi.org/10.1016/j.matpr.2023.09.146
- Bjørnbakk, E. B., Sæter, J. A., Reiso, O. and Tundal, U. (2002) The influence of homogenisation cooling rate, billet preheating temperature and die geometry on the T5-properties for three 6xxx alloys extruded under industrial conditions, Materials Science Forum, 396, 405-410.
- Clausen, A. H., Tryland, T. and Remseth, S. (2001) An investigation of material properties and geometrical dimensions of aluminium extrusions. Materials & Design, 22(4), 267-275. https://doi.org/10.1016/S0261-3069(00)00092-3
- Darıdereli, Y. (2010) Alüminyum alaşımlarının mikroyapı, mekanik özellikler ve aşınma direncine yaşlanmanın etkisi, Msc Thesis, İ.Ü., Fen Bilimleri Enstitüsü, İstanbul.
- Doruk, E., Yılmazoğlu, G., Ayaz, Z., Başer, T. and Durgun, İ. (2018) Yaşlandırma parametrelerinin farklı geometrilere sahip alüminyum ekstrüzyon ezilme kutularında darbe performansına etkileri, Makina Tasarım ve İmalat Dergisi, 14(1), 17-22.
Ayrıntılar
Birincil Dil
İngilizce
Konular
Makine Mühendisliği (Diğer)
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
4 Ağustos 2026
Gönderilme Tarihi
1 Ağustos 2025
Kabul Tarihi
13 Mayıs 2026
Yayımlandığı Sayı
Yıl 2026 Cilt: 31 Sayı: 2