Yazar "Sofuoğlu, Mehmet Alper" seçeneğine göre listele

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  • Küçük Resim
    Yayın
    Experimental investigation and optimization of hybrid turning of Ti6Al7Nb alloy under nanofluid based MQL by TOPSIS method
    (Yildiz Technical University, 2023) Duman, Erkin; Yapan, Yusuf Furkan; Sofuoğlu, Mehmet Alper
    The present work aims to decide on machining parameters and enhance machinability of the biomedical Ti6Al7Nb alloy using nanofluid MQL with nanoparticles of graphene (NMQL) and ultrasonic vibration assisted (UVA) machining methods were applied both separately and in a hybrid manner. Consequently, for the chosen cutting parameters, when compared to the conventional turning (CT) with vegetable cutting oil-based MQL, the UVA-NMQL hybrid method has achieved a reduction in cutting forces ranging from approximately 11% to 23%, a decrease in cutting temperatures by around 9% to 17%, and an enhancement in average surface roughness by roughly 15% to 53% across all the analyzed results compare to vegetable oil based conventional MQL turning conditions. Additionally, using the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) method, the optimum cutting parameters were determined as UVA-NMQL cutting condition, 130 m/min cutting speed, and 0.1 mm feed value.
  • Kapalı Erişim
    Yayın
    Ultrasonic vibration-assisted machining with minimum quantity lubrication for aerospace materials
    (Springer Nature, 2024) Duman, Erkin; Yapan, Yusuf Furkan; Uysal, Alper; Sofuoğlu, Mehmet Alper
    This chapter offers an insightful examination of the advancements in machining aerospace materials, focusing on ultrasonic vibration-assisted (UVA) machining and minimum quantity lubrication (MQL) techniques. It begins with an introduction to the unique challenges associated with machining these advanced materials and how UVA machining and MQL have emerged as innovative solutions to address these challenges. The chapter then systematically explores the effects of these techniques on various aspects of the machining process. It discusses how UVA machining and MQL influence cutting forces, leading to potential reductions in tool wear and energy consumption. The impact on surface quality is also examined, highlighting improvements in terms of both physical appearance and structural integrity. The chapter further discusses the changes in chip morphologies that result from employing UVA machining and MQL, which are crucial for understanding the material removal mechanisms and overall machining efficiency. Finally, it addresses the implications of these techniques on tool wear, emphasizing their potential to extend tool life and maintain machining accuracy. This chapter not only synthesizes current research but also provides practical insights for industry professionals seeking to optimize machining processes for aerospace materials.