Azim GÖKÇE, Fehim FINDIK, Ali Osman KURT

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Alüminyum ve Alaşımlarının Toz Metalurjisi İşlemleri

Toz metalurjisi (TM), üreticilere diğer imal usullerine göre büyük avantajlar sunan bir üretim yöntemidir. Bu yöntemin aşamaları olan toz üretimi, toz işleme, presleme, sinterleme ve sinterleme sonrası işlemlerdeki küçük farklılıklar nihai ürün özelliklerini büyük oranda etkilemektedir. Alüminyum alaşımları günümüzde en çok kullanılan ikinci mühendislik alaşımıdır. Günümüzde otomotiv sektöründe bazı alüminyum parçalar TM uygulamaları ile üretilmektedir. Yüksek dayanımlı alüminyum TM alaşımlarının geliştirilmesi ile ileride daha fazla sayıda parçanın bu yöntemle üretilmesi beklenmektedir. Bu çalışmada, alüminyum alaşımlarından TM ile parça üretimi hakkında bilgi verilmiş, özellikle mühendislik uygulamalarında sıklıkla kullanılan Al-Cu, Al-Si ve Al-Mg alaşımlarıyla ilgili literatürdeki bir takım sonuçlardan örnekler sunulmuştur. Farklı alaşımların sinterlenmesi sonucu elde edilen özellikler hakkında bilgi verilmiştir.  
Anahtar Kelimeler:

Toz metalurjisi, alüminyum alaşımları, sinterleme

Powder Metallurgy Processing of Aluminum Alloys

Powder metallurgy (PM) is a production method that offers manufacturers great advantages over other manufacturing processes. Little changes in the production steps of powder metallurgy method such as powder manufacture, powder processing, pressing, sintering affect the properties of the final product significantly. Aluminum alloys are second most used alloy in the engineering applications. Nowadays some parts in the automotive sector are produced with aluminum PM alloys. In the future, it is expected that more Al-PM parts will be produced with the development of new high strength Al based PM alloys. In this study, information about the production of the Al-PM parts is given and some examples about the sintering of Al-Cu, Al-Si and Al-Mg PM alloys from the relevant literature are presented. Properties of the various sintered PM Aluminum alloys are highlighted. 
Keywords:

Powder metallurgy, aluminium alloys, sintering,

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Mühendis ve Makina-Cover
  • ISSN: 1300-3402
  • Yayın Aralığı: Yılda 4 Sayı
  • Başlangıç: 1957
  • Yayıncı: TMMOB MAKİNA MÜHENDİSLERİ ODASI
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