Reibkoeffizientenermittlung in der Zerspanung auf Basis von Hochgeschwindigkeitsaufnahmen

verfasst von

Benjamin Bergmann, Berend Denkena, Gerhard Poll, Florian Pape, Haichao Liu, Lars Ellersiek

Abstract

The friction at the cutting wedge has a significant in¬fluence on tool wear. Due to the strong local variance of temperatures and stresses at the cutting wedge, the friction conditions differ significantly locally. In this work, a method is presented with which normal stresses, tangential stresses and local friction coeffi¬cients at the cutting wedge can be determined based on experimental investigations. For this purpose, high-speed recordings and force measurements are conducted on a planing test rig. In addition to dry cutting processes, investigations are carried out on the test rig using emulsion and oil as metal working fluid. The results show a reduction of the coefficients of friction when oil is used as metal working fluid. However, when emulsion is used as metal working fluid, the coefficient of friction changes only slightly compared to dry machining. This can be attributed to low film-forming ability of the emulsion.

Organisationseinheit(en)

Institut für Fertigungstechnik und Werkzeugmaschinen

Typ

Artikel

Journal

Tribologie und Schmierungstechnik

Band

69

Seiten

21-27

Anzahl der Seiten

7

ISSN

0724-3472

Publikationsdatum

12.2022

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffmechanik, Maschinenbau, Oberflächen und Grenzflächen, Oberflächen, Beschichtungen und Folien

Elektronische Version(en)

https://doi.org/10.24053/TuS-2022-0041 (Zugang: Geschlossen)