Journal
OPTICS AND LASER TECHNOLOGY
Volume 126, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2020.106072
Keywords
Laser penetration welding; Steel-Al dissimilar alloys; Response surface methodology
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Funding
- National Natural Science Foundation of China [51675104]
- Guangzhou Municipal Special Fund Project for Scientific and Technological Innovation and Development [202002020430100004]
- Innovation Team Project, Department of Education of Guangdong Province, China [2017KCXTD010]
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A laser welding of DP780 steel to Al5052 joint has been investigated to optimize the weld width and lap-shear force. Four types of steel-Al welded joints and fracture model have been proposed. Response surface methodology and central composite design were applied to develop mathematical relationships between the control parameters and the responses. Then, the validation and optimization experiments were carried out to check the models adequacy. The results show that there exists good consistency between the predicted and actual value. This indicates the developed models could predict the weld width and lap-shear force within the limits of the process parameters.
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