Numerical investigation of hot ultrasonic assisted turning of aviation alloys

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SOFUOĞLU M. A., ÇAKIR F. H., GÜRGEN S., ORAK S., KUŞHAN M. C.

Journal of the Brazilian Society of Mechanical Sciences and Engineering, cilt.40, sa.3, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 3
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s40430-018-1037-4
  • Dergi Adı: Journal of the Brazilian Society of Mechanical Sciences and Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Finite element modeling, Hot ultrasonic assisted machining, Titanium alloys, Ultrasonic assisted machining, Hot machining, Hastelloy-X, NICKEL-BASED ALLOYS, HASTELLOY-X, SIMULATION, TITANIUM, TOOL, MACHINABILITY, PARAMETERS, BEHAVIOR
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

© 2018, The Brazilian Society of Mechanical Sciences and Engineering.Aviation alloys exhibit superior properties such as high-strength-to-weight ratio and corrosion resistance but these alloys possess poor machinability. To overcome this disadvantage, new machining methods (Ultrasonic assisted machining, hot machining, etc.) are developed. Hot ultrasonic assisted turning (HUAT) is a new hybrid machining method which changes the cutting system between tool and workpiece, therefore, reduced cutting forces and better surface finish for workpiece are obtained. In this study, 2D finite element (FE) analysis is carried out to investigate the effects of these machining methods on titanium and Hastelloy-X alloys in terms of cutting forces, cutting tool temperatures and effective stresses. DEFORM-2D software is used during analyses. In addition, an experimental study is conducted to verify numerical results. During verification, cutting tool temperature is taken into consideration. It is confirmed that HUAT technique reduces cutting forces and effective stress significantly but cutting temperature increases compared to conventional and ultrasonic assisted turning.