Critical Gap distance in Laser Butt-welding

Claus Bagger, Flemming Ove Olsen

    Research output: Contribution to journalJournal articleResearch

    Abstract

    In a number of systematic laboratory experiments the critical gap distance that results in sound beads in laser butt welding is sought identified. By grinding the edges of the sheets, a number of "reference" welds are made and compared to the sheets with shear cut edges. In the tests the gap was set at 0.00, 0.02, 0.05, 0.08 and 0.10 mm. Mild steel (St 1203) with a thickness of 0.75 and 1.25 mm with and without zinc coating were analysed. A total of 120 welds were made at different welding speeds.As quality norm DIN 8563 was used to divide the welds into quality classes. A number of welds were also x-ray photographed.Of the weld combinations analysed 80 % were of high quality and 17 % of a non-acceptable quality. 90 % of the bad welds had a gap distance larger than 0.05 mm. The results showed that 85 % of the bad welds were shear cut and only 15 % grinded. Two third of the bad welds were zinc coated.
    Original languageEnglish
    JournalInternational SheetMetal review
    Volume1
    Issue number3
    Pages (from-to)48 - 52
    Publication statusPublished - 1999

    Cite this

    Bagger, C., & Olsen, F. O. (1999). Critical Gap distance in Laser Butt-welding. International SheetMetal review, 1(3), 48 - 52.
    Bagger, Claus ; Olsen, Flemming Ove. / Critical Gap distance in Laser Butt-welding. In: International SheetMetal review. 1999 ; Vol. 1, No. 3. pp. 48 - 52.
    @article{9ba2a813b92a49b39bd6847058d68308,
    title = "Critical Gap distance in Laser Butt-welding",
    abstract = "In a number of systematic laboratory experiments the critical gap distance that results in sound beads in laser butt welding is sought identified. By grinding the edges of the sheets, a number of {"}reference{"} welds are made and compared to the sheets with shear cut edges. In the tests the gap was set at 0.00, 0.02, 0.05, 0.08 and 0.10 mm. Mild steel (St 1203) with a thickness of 0.75 and 1.25 mm with and without zinc coating were analysed. A total of 120 welds were made at different welding speeds.As quality norm DIN 8563 was used to divide the welds into quality classes. A number of welds were also x-ray photographed.Of the weld combinations analysed 80 {\%} were of high quality and 17 {\%} of a non-acceptable quality. 90 {\%} of the bad welds had a gap distance larger than 0.05 mm. The results showed that 85 {\%} of the bad welds were shear cut and only 15 {\%} grinded. Two third of the bad welds were zinc coated.",
    author = "Claus Bagger and Olsen, {Flemming Ove}",
    year = "1999",
    language = "English",
    volume = "1",
    pages = "48 -- 52",
    journal = "International SheetMetal review",
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    Bagger, C & Olsen, FO 1999, 'Critical Gap distance in Laser Butt-welding', International SheetMetal review, vol. 1, no. 3, pp. 48 - 52.

    Critical Gap distance in Laser Butt-welding. / Bagger, Claus; Olsen, Flemming Ove.

    In: International SheetMetal review, Vol. 1, No. 3, 1999, p. 48 - 52.

    Research output: Contribution to journalJournal articleResearch

    TY - JOUR

    T1 - Critical Gap distance in Laser Butt-welding

    AU - Bagger, Claus

    AU - Olsen, Flemming Ove

    PY - 1999

    Y1 - 1999

    N2 - In a number of systematic laboratory experiments the critical gap distance that results in sound beads in laser butt welding is sought identified. By grinding the edges of the sheets, a number of "reference" welds are made and compared to the sheets with shear cut edges. In the tests the gap was set at 0.00, 0.02, 0.05, 0.08 and 0.10 mm. Mild steel (St 1203) with a thickness of 0.75 and 1.25 mm with and without zinc coating were analysed. A total of 120 welds were made at different welding speeds.As quality norm DIN 8563 was used to divide the welds into quality classes. A number of welds were also x-ray photographed.Of the weld combinations analysed 80 % were of high quality and 17 % of a non-acceptable quality. 90 % of the bad welds had a gap distance larger than 0.05 mm. The results showed that 85 % of the bad welds were shear cut and only 15 % grinded. Two third of the bad welds were zinc coated.

    AB - In a number of systematic laboratory experiments the critical gap distance that results in sound beads in laser butt welding is sought identified. By grinding the edges of the sheets, a number of "reference" welds are made and compared to the sheets with shear cut edges. In the tests the gap was set at 0.00, 0.02, 0.05, 0.08 and 0.10 mm. Mild steel (St 1203) with a thickness of 0.75 and 1.25 mm with and without zinc coating were analysed. A total of 120 welds were made at different welding speeds.As quality norm DIN 8563 was used to divide the welds into quality classes. A number of welds were also x-ray photographed.Of the weld combinations analysed 80 % were of high quality and 17 % of a non-acceptable quality. 90 % of the bad welds had a gap distance larger than 0.05 mm. The results showed that 85 % of the bad welds were shear cut and only 15 % grinded. Two third of the bad welds were zinc coated.

    M3 - Journal article

    VL - 1

    SP - 48

    EP - 52

    JO - International SheetMetal review

    JF - International SheetMetal review

    IS - 3

    ER -