Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Characterization of weld bead geometry in fibre laser butt welding of mild steel sheets by means of statistical modelling
AU - Eghlio, R. M.
AU - Pinkerton, A. J.
AU - Li, L.
PY - 2012
Y1 - 2012
N2 - This paper presents the effect of process parameters on the geometry characteristics in butt welding of 1.5 mm mild steel sheets using a I kW single mode fibre laser at a range of laser powers, welding speeds and laser focal point position. Experiments were planned using the statistical design of experiment (DoE) technique for optimizing the above selected welding parameters and statistical modelling technique was employed to understand their interactions and significance. Suitable parameters to achieve net-shape welds were identified. Experimental methodology and results are detailed and the results are discussed. Micro-hardness measurements and tensile stress testing were carried out. It has been shown that laser net-shape welded samples have superior mechanical properties.
AB - This paper presents the effect of process parameters on the geometry characteristics in butt welding of 1.5 mm mild steel sheets using a I kW single mode fibre laser at a range of laser powers, welding speeds and laser focal point position. Experiments were planned using the statistical design of experiment (DoE) technique for optimizing the above selected welding parameters and statistical modelling technique was employed to understand their interactions and significance. Suitable parameters to achieve net-shape welds were identified. Experimental methodology and results are detailed and the results are discussed. Micro-hardness measurements and tensile stress testing were carried out. It has been shown that laser net-shape welded samples have superior mechanical properties.
KW - Fibre laser
KW - mild steel
KW - welding
KW - geometry
KW - net-shape
KW - strength
KW - statistical modelling
KW - design of experiment (DoE) technique
M3 - Journal article
VL - 22
SP - 281
EP - 298
JO - Lasers in Engineering
JF - Lasers in Engineering
SN - 0898-1507
IS - 5-6
ER -