| Title |
Comparative analysis of microstructure and quality of gas metal arc welded and shielded metal arc welded joints |
| Authors |
Bendikienė, R ; Janušas, G ; Žižys, D |
| Full Text |
|
| Is Part of |
Mechanika.. Kaunas : KTU. 2015, vol. 21, no. 4, p. 323-328.. ISSN 1392-1207. eISSN 2029-6983 |
| Keywords [eng] |
grain size ; GMAW ; materials testing ; microstructure ; SMAW ; welding |
| Abstract [eng] |
In this work a comparative study of two metal arc welding methods Gas Metal Arc Welding (GMAW or MIG) and Shielded Metal Arc Welding (SMAW) were per-formed as well as quality and microstructure of welds were compared. The first one is the welding type with consuma-ble electrode and gas shielding, and the second one is the welding method with consumable, flux coated electrode especially used for repairing. To ensure the satisfactory performance of a welded structure, the quality of the welds was determined by adequate testing procedures. The tests were performed on specimens manufactured accord-ing to Lithuanian Standard Board requirements, specifical-ly LST EN 895:1998. Test pieces made of structural steel S235JR (LST EN 10027-1) were subjected to welding. Ob-tained microstructures revealed differences between two welding methods used for experiments, while the evalua-tion of grain size confirmed the former results of tensile strength tests. |
| Published |
Kaunas : KTU |
| Type |
Journal article |
| Language |
English |
| Publication date |
2015 |
| CC license |
|
