Temperature field evolution during flash butt welding of railway rails

Leonhard Weingrill*, Jörg Krutzler, Norbert Enzinger

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

Flash butt welding (FBW) of railway rails was investigated in this work. For this purpose samples of R260 rail steel and 60E1 profile were instrumented and subsequently welded on a Schlatter GAA 100 welding machine under industrial conditions. The intention is to gain in depth process knowledge by more accurately depicting thermal cycles for an entire welding sequence in the immediate proximity of the weld as well as in the heat affected zone (HAZ). A detailed characterization of the single stages of the heat up phase of the process is important. Additionally, the secondary welding voltage was measured simultaneously during the experiments to characterize the transient heat input. Moreover, these data were used in the analysis of the temperature signals to better cope with electrical interferences. Additionally, a finite element (FE) model of this FBW process was developed in the present work. Its implementation and solution is realized with the help of ESI’s FE-software SYSWELD. A strong coupled thermo-electrokinetical and metallurgical calculation routine was used. The model comprises the transition resistance at the welding surfaces as the main heat source to the process. Temperature dependent material properties and a corresponding metallurgical model based on an experimental CCT diagram of the rail steel R350HT are implemented in the simulation as well.

Originalspracheenglisch
TitelTHERMEC 2016
Herausgeber (Verlag)Trans Tech Publications Ltd.
Seiten2088-2093
Seitenumfang6
Band879
ISBN (Print)9783035711295
DOIs
PublikationsstatusVeröffentlicht - 2017
Veranstaltung9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 - Graz, Österreich
Dauer: 29 Mai 20163 Jun 2016

Publikationsreihe

NameMaterials Science Forum
Band879
ISSN (Print)0255-5476

Konferenz

Konferenz9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016
LandÖsterreich
OrtGraz
Zeitraum29/05/163/06/16

ASJC Scopus subject areas

  • !!Materials Science(all)
  • !!Condensed Matter Physics
  • !!Mechanics of Materials
  • !!Mechanical Engineering

Fingerprint Untersuchen Sie die Forschungsthemen von „Temperature field evolution during flash butt welding of railway rails“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren