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Vliv ochranné atmosféry na vlastnosti svaru při kondukčním laserovém svařování plechů z konstrukční uhlíkové oceli / Influence of shielding gas on weld properties of conductive laser welding of sheet from carbon steel

In the thesis are analysed influences of three shield gases, based on literary pursuit. Compared was influence of the gas consisting of pure Ar, mixture Ar with 3vol.% CO2 and the mixture Ar with 18vol.% CO2 on mechanical properties of conduction laser welded blunt welds made from structural steel DC01 and S235JR with thickness 3mm and 2mm. Compared were strength properties of the welds in tension, weld hardness and hardness of the heat affected area under the low stress. Further was observed and compared stream of the gases during welding process and its influences on the appearance of the trial welds. On the metallographical cuts of the welds were evaluated mistakes and dimensions of the welds.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:399298
Date January 2019
CreatorsKotrík, Marcel
ContributorsSigmund, Marian, Mrňa, Libor
PublisherVysoké učení technické v Brně. Fakulta strojního inženýrství
Source SetsCzech ETDs
LanguageSlovak
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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