Advanced Technologies and Materials

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Vol. 36 No. 1 (2011): Journal for Technology of Plasticity
Original articles

One contribution to the friction investigation in bulk metal forming

Igor Kačmarčik
University of Novi Sad, Faculty of technical science, Serbia
Dejan Movrin
University of Novi Sad, Faculty of technical science, Serbia
Aljoša Ivanišević
University of Novi Sad, Faculty of technical science, Serbia

Published 2011-06-30

abstract views: 20 // Full text article (PDF): 14


Keywords

  • Friction models,
  • Ring test,
  • Friction calibration curves,
  • Double backward extrusion

How to Cite

Kačmarčik, I., Movrin, D., & Ivanišević, A. (2011). One contribution to the friction investigation in bulk metal forming. Advanced Technologies and Materials, 36(1), 35–48. Retrieved from https://jged.uns.ac.rs/index.php/atm/article/view/jtp.2011.36.1.5

Abstract

Friction is resistance to relative motion when one body slides over another. In metal forming operations, both sheet metal and bulk metal forming, friction is undesirable but also unavoidable occurrence. It has negative impact on main process parameters as well as on workpiece quality. In order to obtain accurate results in metal forming experiments or simulations, the precise value of friction has to be known. In this paper several methods for friction evaluations, such as ring test, forward bar extrusion, backward – forward hollow extrusion, twist extrusion are presented and analyzed. A new double backward extrusion model is proposed.

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