Optimization of process parameters to maximize ultimate tensile strength of friction stir welded dissimilar aluminum alloys using response surface methodology
来源期刊：中南大学学报(英文版)2013年第11期
论文作者：R. Palanivel P. Koshy Mathews N.Murugan
文章页码：2929 - 2938
Key words：frictions stir welding; dissimilar aluminum alloy; tool pin profile; design of experiments; RSM; material flow behavior; optimization
Abstract: Aluminium alloys generally present low weldability by traditional fusion welding process. Development of the friction stir welding (FSW) has provided an alternative improved way of producing aluminium joints in a faster and reliable manner. The quality of a weld joint is stalwartly influenced by process parameter used during welding. An approach to develop a mathematical model was studied for predicting and optimizing the process parameters of dissimilar aluminum alloy (AA6351 T6-AA5083 H111) joints by incorporating the FSW process parameters such as tool pin profile, tool rotational speed welding speed and axial force. The effects of the FSW process parameters on the ultimate tensile strength (UTS) of friction welded dissimilar joints were discussed. Optimization was carried out to maximize the UTS using response surface methodology (RSM) and the identified optimum FSW welding parameters were reported.
R. Palanivel1, P. Koshy Mathews2, N.Murugan3
(1. Kalaivani College of Technology, Coimbatore 641105, India;
2. Kalaivani College of Technology, Coimbatore 641105, India;
3. Coimbatore Institute of Technology, Coimbatore 641014, India)
Abstract:Aluminium alloys generally present low weldability by traditional fusion welding process. Development of the friction stir welding (FSW) has provided an alternative improved way of producing aluminium joints in a faster and reliable manner. The quality of a weld joint is stalwartly influenced by process parameter used during welding. An approach to develop a mathematical model was studied for predicting and optimizing the process parameters of dissimilar aluminum alloy (AA6351 T6-AA5083 H111) joints by incorporating the FSW process parameters such as tool pin profile, tool rotational speed welding speed and axial force. The effects of the FSW process parameters on the ultimate tensile strength (UTS) of friction welded dissimilar joints were discussed. Optimization was carried out to maximize the UTS using response surface methodology (RSM) and the identified optimum FSW welding parameters were reported.
Key words:frictions stir welding; dissimilar aluminum alloy; tool pin profile; design of experiments; RSM; material flow behavior; optimization
