Open AccessAnalysis of the structure and selected properties of welds obtained by the CMT and MAG method
Author(s) -
Szymon Kwiecień,
W. Pilarczyk,
Ewa Harapińska
Publication year - 2020
Publication title -
przegląd spawalnictwa
Language(s) - English
Resource type - Journals
eISSN - 2449-7959
pISSN - 0033-2364
DOI - 10.26628/wtr.v92i1.1038
Subject(s) - welding , penetrant (biochemical) , materials science , composite material , structural engineering , metallurgy , engineering , chemistry , organic chemistry
The article presents an analysis of the Cold Metal Transfer (CMT) method, including the process, advantages and application of the method. The joints made with low energy CMT method and classic MAG method were also compared. The paper presents the results of non-destructive penetrant tests of welded joints made of steel in the S235JR grade. Microscopic observations were made using optical microscopy and the hardness was measured in accordance with PN-EN ISO 6507-1:2007. The test results confirmed that the CMT process allows for the production of high-quality joints and a narrow heat-affected zone compared to the classic MAG welding method, and also provides good mechanical properties and elimination of spatter.