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Influence of cutting parameters on surface roughness and strain hardening during milling NiTi shape memory alloy

  • Guijie Wang
  • Zhanqiang LiuEmail author
  • Weimin Huang
  • Bing Wang
  • Jintao Niu
ORIGINAL ARTICLE
  • 28 Downloads

Abstract

Nitinol is well known as one difficult-to-machine alloy due to its poor machinability, which requires a large amount of cutting force and cutting temperature, resulting in poor surface roughness and strain hardening. The influence of the milling parameters on the surface roughness and strain hardening with orthogonal experiment is studied in this paper. It is found that cutting speed and feed rate have important influence on the surface roughness and strain hardening. When the cutting speed becomes larger, the surface roughness decreases, while the work hardening decreases first and then gets bigger. The surface roughness and work hardening increase gradually when the feed rate increases. However, the width of cut has little effect on the above surface roughness and strain hardening. The research shows that the medium range of cutting speed selection is better for the milling of NiTi shape memory alloy as used as medical implant materials that can achieve the minimal work hardening and smaller surface roughness.

Keywords

NiTi shape memory alloy Surface roughness Strain hardening Milling Cutting parameters 

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Notes

Acknowledgments

This research was funded by the National Natural Science Foundation of China grant numbers 51425503 and 91860207, Taishan Scholar Foundation of Shandong Province grant number TS20130922. The authors would also like to acknowledge the support from Collaborative Innovation Center for Shandong’s Main Crop Production Equipment and Mechanization.

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Guijie Wang
    • 1
    • 2
  • Zhanqiang Liu
    • 1
    • 2
    Email author
  • Weimin Huang
    • 1
    • 2
  • Bing Wang
    • 1
    • 2
  • Jintao Niu
    • 1
    • 2
  1. 1.School of Mechanical EngineeringShandong UniversityJinanPeople’s Republic of China
  2. 2.Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE/Key National Demonstration Center for Experimental Mechanical Engineering EducationJinanPeople’s Republic of China

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