Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
}
TY - GEN
T1 - Net shape laser butt welding of mild steel sheets
AU - Eghlio, R. M.
AU - Pinkerton, A. J.
AU - Li, Lin
PY - 2010
Y1 - 2010
N2 - In laser welding, the weld bead is normally extended above or below the parent material surfaces due to melt flow and rapid solidification. This paper presents a study of achieving net shape (i.e. weld bead is flat to the parent material surfaces) butt welding of 1.5 mm mild steel sheets using a continuous wave single mode fibre laser (maximum 1 kW) at a range of laser powers, welding speeds and laser focal point positions. A series of experiments were performed using statistical design of experiment (DoE) techniques and analysis of variance (ANOVA) to identify significant variables and their interactions affecting the weld characteristics. The work shows that it is possible to obtain net shape welds on either the upper and lower surfaces of the material studied. There is an approximately linear relationship between upper surface weld bead offset from the surface and the welding speed. A welding speed of above 100 mm/sec is required for achieving net-shape butt welding at 500-550 W laser power.
AB - In laser welding, the weld bead is normally extended above or below the parent material surfaces due to melt flow and rapid solidification. This paper presents a study of achieving net shape (i.e. weld bead is flat to the parent material surfaces) butt welding of 1.5 mm mild steel sheets using a continuous wave single mode fibre laser (maximum 1 kW) at a range of laser powers, welding speeds and laser focal point positions. A series of experiments were performed using statistical design of experiment (DoE) techniques and analysis of variance (ANOVA) to identify significant variables and their interactions affecting the weld characteristics. The work shows that it is possible to obtain net shape welds on either the upper and lower surfaces of the material studied. There is an approximately linear relationship between upper surface weld bead offset from the surface and the welding speed. A welding speed of above 100 mm/sec is required for achieving net-shape butt welding at 500-550 W laser power.
U2 - 10.1007/978-1-84996-432-6_61
DO - 10.1007/978-1-84996-432-6_61
M3 - Conference contribution/Paper
SN - 978-1-84996-431-9
SP - 267
EP - 270
BT - Proceedings of the 36th International Matador Conference
A2 - Hinduja, Srichand
A2 - Li, Lin
PB - Springer
CY - London
ER -