Effect of laser beam and arc power on weld bead geometry in Hybrid Laser Arc Welding of structural steel
Journal
Welding and welded structures
Date Issued
2024
Author(s)
Petrevski, Martin
Vrtanoski, Gligorche
Stankoski, Marko
Abstract
Hybrid Laser Arc Welding – HLAW combines the
advantages of Laser Beam Welding - LBW and
Gas Metal Arc Welding - GMAW, resulting in a
welding process of high welding speed, less heat
input, deeper penetration into the welding material,
and increased process efficiency compared to
conventional welding processes. The merger of the
two heat sources, laser beam and arc, in a single
welding process leads to a weld joint characterized
by two zones, an upper-wide zone or laser-arc
zone and a lower narrow zone or laser zone. This
study investigates the impact of laser beam and arc
currents on the weld bead geometry in the arcleading
hybrid laser arc welding process of 12 (mm)
structural steel. Through systematic
experimentation, single-pass hybrid laser arc welds
were performed in a butt joint configuration with
zero-gap at various power settings, laser beam
power range 10 - 13 (kW), and arc current range
340 - 400 (A) to determine their influence on weld
bead width, height, and depth. The quality level of
the hybrid laser arc welds was evaluated according
to ISO 12932.
advantages of Laser Beam Welding - LBW and
Gas Metal Arc Welding - GMAW, resulting in a
welding process of high welding speed, less heat
input, deeper penetration into the welding material,
and increased process efficiency compared to
conventional welding processes. The merger of the
two heat sources, laser beam and arc, in a single
welding process leads to a weld joint characterized
by two zones, an upper-wide zone or laser-arc
zone and a lower narrow zone or laser zone. This
study investigates the impact of laser beam and arc
currents on the weld bead geometry in the arcleading
hybrid laser arc welding process of 12 (mm)
structural steel. Through systematic
experimentation, single-pass hybrid laser arc welds
were performed in a butt joint configuration with
zero-gap at various power settings, laser beam
power range 10 - 13 (kW), and arc current range
340 - 400 (A) to determine their influence on weld
bead width, height, and depth. The quality level of
the hybrid laser arc welds was evaluated according
to ISO 12932.
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04-2024 CB.pdf
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Journal of Welding and welded structures vol.69 (4)
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