Yeni Sıcak Ultrasonik Yardımlı İmalat Ünitesi Tasarımı ve Ekonomik Analizi

Yıl 2019, Cilt: 22 Sayı: 2, 277 - 282, 01.06.2019

M. Alper Sofuoğlu Selim Gürgen Fatih H. Çakır Sezan Orak Melih C. Kuşhan

https://doi.org/10.2339/politeknik.523697

Öz

Ultrasonik yardımlı işleme, takıma
veya iş parçasına belirli bir titreşim uygulanarak iş parçasının işlenmesi
süreci olup son işlem uygulamalarında yüzey özelliklerinin iyileşmesi, kesme
kuvvetlerinin azalması ve takım ömrünü arttırılması amacıyla uygulanır. Sıcak
işleme ise talaş kaldırması zor olan malzemelerin termal yumuşamasını
sağlayarak kesme işleminin kolaylaştırılmasını amaçlayan bir işlemdir. Bu işlem
sayesinde kesme kuvvetlerinde azalma ve takım ömründe artış görülmektedir.
İşlenebilirliği zor malzemeler için son yıllarda ortaya çıkan en önemli melez
yöntemlerden biri ise sıcak titreşim yardımlı talaşlı işlemedir. Bu işlem
ultrasonik yardımlı işleme ile sıcak işlemeyi birleştiren yeni bir melez imalat
yöntemidir. Bu çalışma kapsamında ülkemizde yaygın olmayan bu üretim tekniği
için yeni bir imalat ünitesi tasarımı yapılmıştır. Bu yeni üretim yöntemi ile
özellikle savunma ve havacılık sektöründe işlenebilirliği düşük olan
süperalaşım, paslanmaz çelik gibi malzemeler hem yüzey kalitesi arttıralarak imal
edilebilecek hem de takım maliyeti gibi masraflar azaltılacaktır. Yöntemin
hayata geçmesiyle de savunma ve havacılık gibi kritik bir alanlarda ileri
teknoloji edinilerek milli bir birikim sağlanmış olacaktır. Tasarlanan imalat
ünitesi üniversal torna tezgahlarına ilave bir modül olarak eklenebilmekte ve
ileride CNC tezgahlar için de yaygınlaştırılabilme potansiyeline sahiptir.  

Anahtar Kelimeler

Ultrasonik yardımlı işleme, sıcak işleme, melez yöntemler, ultrasonik sistem tasarımı

Design and Economic Analysis of a Novel Hot Ultrasonic Machining System

Öz

Ultrasonic assisted machining uses vibrational cutting
generally for finishing operations to improve surface properties of the
workpiece, reduce cutting force and enhance tool life. On the other side, hot
machining takes advantage of thermal softening of difficult-to-cut materials
during operations. This process reduces cutting forces and increases tool life.
As a hybrid manufacturing method, hot ultrasonic machining is a high-rank
important process emerging in the last years. This method brings vibrational
cutting and hot machining together to be benefited from both techniques. Within
the scope of this study, a new manufacturing system was designed for this
production technique which is not common in Turkey. With this new production
method, materials such as superalloys and stainless steels, which are
particularly hard to machine materials in the defense and aerospace sectors,
can be manufactured both by increasing the surface quality and by reducing
costs such as tooling costs. With the realization of the method, advanced
technology will be gained in  critical
areas such as defense and aviation. The designed manufacturing system is able
to integrated into universal turning lathes and has a potential to be adapted
to CNC machines in the near future.

Anahtar Kelimeler

Ultrasonic assisted machining, hot machining, hybrid methods, ultrasonic system design

Kaynakça

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