MECHANICAL PROPERTIES LASER WELDING AUTOMOTIVE STEEL SHEETS
| Autor: | Róbert Kočiško, Lukáš Dragošek, Mária Mihaliková, Anna Lišková, Róbert Bidulský |
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| Rok vydání: | 2015 |
| Předmět: |
lcsh:TN1-997
Heat-affected zone Materials science microstructure Alloy Automotive industry Welding mechanical properties engineering.material Electric resistance welding law.invention high strength low alloy (HSLA) steels law Composite material tension test lcsh:Mining engineering. Metallurgy Tensile testing business.industry Metallurgy Metals and Alloys Laser beam welding Microstructure laser welding engineering interstitial free (IF) steels business |
| Zdroj: | Acta Metallurgica Slovaca, Vol 21, Iss 3 (2015) |
| ISSN: | 1338-1156 1335-1532 |
| Popis: | The experimental and theoretical investigation deals with laser welding of automotive thin steel sheets. As tested materials were used Interstitial Free Steel (IF) from type of Hight Strength Low Alloy (HSLA) and the second is S420 steel (Micro-Alloyed Steel). Weld quality has been measured with the help of microhardness test and microstructure. Changes of properties of these materials were carried out by static conditions. The tensile properties of the welded samples have been set in the both longitudinal directions. The structure of welded joints these two materials were investigated by metallographic analysis. Metallographic analysis confirmed the formation of favourable structure of weld metal and heat affected zone. Obtained results showed that by laser welding it is possible to create the high quality welded joints with positive mechanical properties on used in automotive industry. |
| Databáze: | OpenAIRE |
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