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On the Friction Test for Metal Forming Applications

  • Sergei AlexandrovEmail author
  • Marko Vilotic
  • Dragisa Vilotic
Conference paper
  • 58 Downloads
Part of the Structural Integrity book series (STIN, volume 16)

Abstract

The ring compression test is a conventional test for identifying the friction law for metal forming applications. This test is very widely used but has a significant disadvantage. In particular, if the friction stress is high, then a sticking region occurs over a part of the friction surface. In this case, the interpretation of experimental results is difficult because the friction law at sliding is not valid over the sticking region. If the friction stress is very high, then this region occupies the entire friction surface. In this case, the process becomes insensitive to the friction factor at sliding at all. In order to overcome this difficulty and keep the conventional procedure for identifying the friction law, it is proposed to carry out the compression test between fat and conical dies. The geometry of the conical die should be chosen such that no sticking region occurs on the friction surface.

Keywords

Friction Sticking Metal forming 

Notes

Acknowledgments

This work was carried out within the framework of the international project supported by grants RFBR-18-51-76001 (Russia) and BULKSURFACE – 359 (Ministry of education, science and technological development, Serbia).

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Sergei Alexandrov
    • 1
    • 2
    Email author
  • Marko Vilotic
    • 3
  • Dragisa Vilotic
    • 3
  1. 1.School of Mechanical Engineering and AutomationBeihang UniversityBeijing ShiChina
  2. 2.Ishlinsky Institute for Problems in Mechanics, Russian Academy of SciencesMoscowRussia
  3. 3.Faculty of Technical SciencesUniversity of Novi SadNovi SadSerbia

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