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Avoiding porosity a...
Avoiding porosity and spatter in hot-dip galvanized C-Mn steels by laser twin-spot welding
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- Hedegård, Joakim (author)
- RISE,KIMAB,Swerea KIMAB AB
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- Löthman, J. (author)
- Wire Sandviken AB
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- Kaplan, Alexander (author)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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(creator_code:org_t)
- Istanbul : Ridgeview Publishing Company, 2010
- 2010
- English.
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In: Proc. of the Int. Conf. on Advances in Welding Science and Technology for Construction, Energy and Transportation, AWST 2010, held in Conj. with the 63rd Annual Assembly of IIW 2010. - Istanbul : Ridgeview Publishing Company. - 9786056141911 ; , s. 325-329
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Abstract
Subject headings
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- During welding of zinc-coated materials, zinc trapped in the overlap of a lap joint expands violently because of vaporization, and therefore disturbs the laser keyhole. Laser twin-spot welding is a new approach for welding of thin sheet C-Mn steel. The dual beam principle creates a larger and more stabilized weld pool. Therefore welding of galvanized zero gap lap joints becomes possible. This opens a new joining approach for automotive and other industries to perform high speed laser welding. The possibility to laser weld steels with 20 μm zinc coating thickness with high speed and high quality is a technical breakthrough.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Keyword
- Blowholes
- Keyhole
- Laser process
- Porosity
- Spatter
- Steel
- Twin-spot galvanized
- Vaporization
- Welding
- Zinc-coated
- Manufacturing Systems Engineering
Publication and Content Type
- ref (subject category)
- kon (subject category)
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