Analysis of Tool-wear and Cutting Force Components in Dry, Preheated, and Cryogenic Machining of NiTi Shape Memory Alloys


Kaynak Y. , Karaca H. E. , Noebe R. D. , Jawahir I. S.

14th CIRP Conference on Modeling of Machining Operations (CIRP CMMO), Torino, İtalya, 13 - 14 Haziran 2013, cilt.8, ss.498-503 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 8
  • Doi Numarası: 10.1016/j.procir.2013.06.140
  • Basıldığı Şehir: Torino
  • Basıldığı Ülke: İtalya
  • Sayfa Sayıları: ss.498-503

Özet

The present study focuses on tool-wear behaviour and cutting forces in machining of NiTi shape memory alloys (SMAs) under various machining conditions, namely dry, preheated, and cryogenic cooling at three different cutting speeds. Obtained results show that cryogenic cooling plays a significant role on reducing notch wear at higher cutting speeds in comparison with machining under dry and preheated conditions. It is also found that cryogenic cooling substantially decreases the cutting force requirement compared with machining under dry and preheated conditions. Chip thickness is not significantly affected by machining conditions. Based on these experimental findings, cryogenic machining is considered a promising approach for improving machining performance of NiTi shape memory alloys. (C) 2013 The Authors. Published by Elsevier B.V.