Open AccessRESEARCH OF THE RESISTANCE OF CONTACT WELDING JOINT OF R65 TYPE RAIL / R65 TIPO BĖGIO KONTAKTINIO SUVIRINIMO JUNGTIES TYRIMAS
Author(s) -
Kęstutis Dauskurdis,
Vitalijus Rudzinskas
Publication year - 2015
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2014.770
Subject(s) - welding , indentation hardness , materials science , joint (building) , metallurgy , structural engineering , mechanical engineering , microstructure , engineering
In the article the R65 type rail joints that were welded by resistance welding are analysed. Survey methodology of the research consists of the following parts: visual inspection of welded joint, ultrasonic rail inspection, hardness test of upper part of the rail, fusion area research, the measurement hardness test of heat-softened area, the measurement microhardness test, microstructure research of the welded joint, impact strength experiments, chemical analysis of welded joint, wheel-rail interaction research using the finite element method (FEM). The results of the research are analysed and the quality of weld is evaluated. The conclusion is based on the results of this research