Skip to the main content

Review article

Selection of the optimal hard facing (HF) technology of damaged forging dies based on cooling time t8/5

D. Arsić ; Faculty of Engineering Sciences, University of Kragujevac, Serbia
V. Lazić ; Faculty of Engineering Sciences, University of Kragujevac, Serbia
A. Sedmak ; Faculty of Mechanical Engineering, University of Belgrade, Belgrade, Serbia
R. Nikolić ; Faculty of Engineering Sciences, University of Kragujevac, Serbia; Research Center, University of Žilina, Žilina, Slovakia
S. Aleksandrović ; Faculty of Engineering Sciences, University of Kragujevac, Serbia
M. Djordjević ; Faculty of Engineering Sciences, University of Kragujevac, Serbia
R. Bakić ; Tutin High School, Serbia


Full text: english pdf 486 Kb

page 103-106

downloads: 799

cite


Abstract

In exploitation, the forging dies are exposed to heating up to very high temperatures, variable loads: compressive, impact and shear. In this paper, the reparatory hard facing of the damaged forging dies is considered. The objective was to establish the optimal reparatory technology based on cooling time t8/5 . The verification of the adopted technology was done by investigation of the hard faced layers microstructure and measurements of hardness within the welded layers’ characteristic zones. Cooling time was determined theoretically, numerically and experimentally.

Keywords

Forging dies; hard facing; cooling time t<sub>8/5</sub>; hardness; microstructure

Hrčak ID:

141847

URI

https://hrcak.srce.hr/141847

Publication date:

1.1.2016.

Visits: 1.317 *