TY - GEN
T1 - Thermal deformation in micro-welding of thin stainless steel sheet by single-mode fiber laser
AU - Okamoto, Yasuhiro
AU - Matsuoka, Satoshi
AU - Ismail, Mohd Idris Shah
AU - Okada, Akira
PY - 2012/12/1
Y1 - 2012/12/1
N2 - In this study, the thermal deformation of thin stainless steel sheet in laser micro-welding were experimentally and numerically investigated. The welding deformation was experimentally evaluated using a single-mode CW fiber laser with a high-speed scanning system. The numerical simulation was developed to calculate the temperature, stress and deformation fields. It was clarified that the laser irradiation condition has a significant effect on the welding mode and stress field. In addition, the thermal deformation was influenced by the weld bead geometry and residual stress distributions, and the final deformation was formed by residual stress and plastic deformation. It was found that the tensile stress was generated around the molten zone and balanced by the compressive stress in the base material.
AB - In this study, the thermal deformation of thin stainless steel sheet in laser micro-welding were experimentally and numerically investigated. The welding deformation was experimentally evaluated using a single-mode CW fiber laser with a high-speed scanning system. The numerical simulation was developed to calculate the temperature, stress and deformation fields. It was clarified that the laser irradiation condition has a significant effect on the welding mode and stress field. In addition, the thermal deformation was influenced by the weld bead geometry and residual stress distributions, and the final deformation was formed by residual stress and plastic deformation. It was found that the tensile stress was generated around the molten zone and balanced by the compressive stress in the base material.
KW - Fiber laser
KW - Finite element model
KW - High-speed scanning
KW - Micro-welding
KW - Thermal deformation
UR - http://www.scopus.com/inward/record.url?scp=84888180543&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:84888180543
SN - 9781629930565
T3 - 10th International Conference on Progress of Machining Technology, ICPMT 2012
SP - 144
EP - 147
BT - 10th International Conference on Progress of Machining Technology, ICPMT 2012
T2 - 10th International Conference on Progress of Machining Technology, ICPMT 2012
Y2 - 25 September 2012 through 27 September 2012
ER -