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Statements

Subject Item
n2:RIV%2F68407700%3A21340%2F13%3A00214497%21RIV14-TA0-21340___
rdf:type
skos:Concept n17:Vysledek
rdfs:seeAlso
http://www.scientific.net/AMM.486.3
dcterms:description
Advent of high power diode laser has substantially contributed to the popularity of laser welding in industry where its virtues such as low heat input and good weld strength are highly appreciated. However, one of the drawbacks of the laser welding is distortion of the welded bodies that is closely linked with the generation and/or redistribution of residual stresses in the vicinity of the weld. In this contribution, mapping of surface macroscopic residual stresses in two directions, i.e. parallel and perpendicular to the welds, were performed for two bodies. The first contained a weld created with the high power diode laser beam speed of 2 m/min and the second with the speed of 15 m/min. Our aim was to compare not only resulting fields of residual stresses, but also to perform qualitative assessment of the possible presence of crystallographic texture and gain a qualitative apprehension about the grain sizes in the vicinity of a laser weld joining two steel sheets. Larger distortion of the body with a laser weld is exhibited by the sample manufactured with approximately 8 times bigger speed of laser beam. This sample is in the immediate vicinity characterized by substantial compressive residual stresses in the direction perpendicular to the weld. Advent of high power diode laser has substantially contributed to the popularity of laser welding in industry where its virtues such as low heat input and good weld strength are highly appreciated. However, one of the drawbacks of the laser welding is distortion of the welded bodies that is closely linked with the generation and/or redistribution of residual stresses in the vicinity of the weld. In this contribution, mapping of surface macroscopic residual stresses in two directions, i.e. parallel and perpendicular to the welds, were performed for two bodies. The first contained a weld created with the high power diode laser beam speed of 2 m/min and the second with the speed of 15 m/min. Our aim was to compare not only resulting fields of residual stresses, but also to perform qualitative assessment of the possible presence of crystallographic texture and gain a qualitative apprehension about the grain sizes in the vicinity of a laser weld joining two steel sheets. Larger distortion of the body with a laser weld is exhibited by the sample manufactured with approximately 8 times bigger speed of laser beam. This sample is in the immediate vicinity characterized by substantial compressive residual stresses in the direction perpendicular to the weld.
dcterms:title
Residual Stress Surface Distribution in the Vicinity of Welds in Laser Welded Steel Sheets Residual Stress Surface Distribution in the Vicinity of Welds in Laser Welded Steel Sheets
skos:prefLabel
Residual Stress Surface Distribution in the Vicinity of Welds in Laser Welded Steel Sheets Residual Stress Surface Distribution in the Vicinity of Welds in Laser Welded Steel Sheets
skos:notation
RIV/68407700:21340/13:00214497!RIV14-TA0-21340___
n17:predkladatel
n19:orjk%3A21340
n3:aktivita
n10:P
n3:aktivity
P(TA02011004)
n3:cisloPeriodika
12
n3:dodaniDat
n9:2014
n3:domaciTvurceVysledku
n7:6426778 n7:4492188 n7:4397576 n7:6539599
n3:druhVysledku
n11:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
102588
n3:idVysledku
RIV/68407700:21340/13:00214497
n3:jazykVysledku
n16:eng
n3:klicovaSlova
laser welding; residual stresses; X-ray diffraction
n3:klicoveSlovo
n4:laser%20welding n4:residual%20stresses n4:X-ray%20diffraction
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[B2F26AF74554]
n3:nazevZdroje
Applied Mechanics and Materials
n3:obor
n15:JG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n8:TA02011004
n3:rokUplatneniVysledku
n9:2013
n3:svazekPeriodika
486
n3:tvurceVysledku
Čapek, Jiří Ganev, Nikolaj Kolařík, Kamil Pala, Zdeněk
s:issn
1662-7482
s:numberOfPages
6
n21:doi
10.4028/www.scientific.net/AMM.486.3
n14:organizacniJednotka
21340