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Experiments and eff...
Experiments and efficient simulations of distortions of laser beam–welded thin-sheet close beam steel structures
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- Andersson, Oscar (författare)
- KTH,Industriell produktion,XPRES, Excellence in production research,KTH Royal Institute of Technology, Department of Production Engineering and XPRES, Stockholm, Sweden
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- Fahlström, Karl (författare)
- Högskolan Väst,RISE,KIMAB,University West, Sweden,Univ West, Dept Engn Sci, Trollhättan, Sweden.;Swerea KIMAB, Stockholm, Sweden.,Forskningsmiljön produktionsteknik(PTW),Swerea Group,PTW
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- Melander, Arne, 1948- (författare)
- KTH,RISE,KIMAB,KTH Royal Institute of Technology, Department of Production Engineering and XPRES, Stockholm, Sweden,XPRES, Excellence in production research,Industriell produktion,Swerea KIMAB, Stockholm, Sweden.
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(creator_code:org_t)
- 2018-01-03
- 2019
- Engelska.
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Ingår i: Proceedings of the Institution of mechanical engineers. Part B, journal of engineering manufacture. - : SAGE Publications. - 0954-4054 .- 2041-2975. ; 233:3, s. 787-796
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Abstract
Ämnesord
Stäng
- In this article, geometrical distortions of steel structures due to laser beam welding were analyzed. Two 700-mm-long U-beam structures were welded in overlap configurations: a double U-beam structure and a U-beam/flat structure. The structures were in different material combinations from mild steel to ultrahigh-strength steel welded with different process parameters. Different measures of distortions of the U-beam structures were evaluated after cooling. Significant factors of the welding process and the geometry of the structures were identified. Furthermore, welding distortions were modeled using two predictive finite element simulation models. The previously known shrinkage method and a newly developed time-efficient simulation method were evaluated. The new model describes the effects of expansion and shrinkage of the weld zone during welding and material plasticity at elevated temperatures. The new simulation method has reasonable computation times for industrial applications and improved agreement with experiments compared to the often used so-called shrinkage method.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Produktionsteknik, arbetsvetenskap och ergonomi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Production Engineering, Human Work Science and Ergonomics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- distortions
- finite element simulations
- Laser beam welding
- thin-sheet structures
- ultrahigh-strength steel
- Distortion (waves)
- High strength steel
- Laser beams
- Shrinkage
- Steel structures
- Thermal barrier coatings
- Welds
- Efficient simulation
- Expansion and shrinkage
- Finite element simulation model
- Geometrical distortion
- Material combination
- Ultra high strength steel
- Finite element method
- Manufacturing and materials engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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