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Title

THICK STRIP CUTTING AND WELDING WITH HIGH POWER SOLID-STATE LASER: TECHNOLOGY BREAKTHROUGH

Authorship

Vallee, Thomas; Mauuary, Stanislas; Maillard, Sebastien; Georges, Stephane; Gouttebroze, Stephane; Yagi, Takahiro; Kaga, Shinichi

Vallee, Thomas

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Mauuary, Stanislas

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Maillard, Sebastien

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Georges, Stephane

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Gouttebroze, Stephane

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Yagi, Takahiro

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Kaga, Shinichi

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DOI

10.5151/9785-9785-32250

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Abstract

Steel strip manufacturing ever reinvents proposing new grades, requiring to tackle technical limitations of production systems. Primetals Technologies breaks through strip welding by expanding the welder LW21L “Asolid” technology used on low gauges for high-end market such as automotive CAL/CGL. Addressing the usual drawbacks in maintenance, operation and safety of current welding system based on mechanical cutting and CO2 laser welding, the newly developped LW21H “Asolid” technology processes thicker strips up to 7 mm with solid-state laser cutting and welding. This new welder is brought to reality through a scale 1:1 pilot developed, manufactured and tested in Primetals Technologies workshop.

Keywords

thick strip cutting, thick strip welding, high power solid-state laser