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Mathematical model and optimization for underwater friction stir welding of a heat-treatable aluminum alloy
Highlights ► A mathematical model was developed for underwater FSW. ► The optimization of underwater FSW was conducted through the model. ► The intrinsic reason for strength improvement by underwater FSW was illustrated.
Abstract During the friction stir welding (FSW) of heat-treatable aluminum alloys, the welding thermal cycles tend to cause a local softening in the joints and thus lead to a degradation in joint properties. Underwater FSW has been demonstrated to be available for the strength improvement of normal joints. In order to obtain the optimum welding condition for underwater FSW, a 2219-T6 aluminum alloy was underwater friction stir welded and a mathematical model was developed to optimize the welding parameters for maximum tensile strength in the present study. The results indicate that a maximum tensile strength of 360MPa can be achieved through underwater FSW, higher than the maximum tensile strength obtained in normal condition.
Mathematical model and optimization for underwater friction stir welding of a heat-treatable aluminum alloy
Highlights ► A mathematical model was developed for underwater FSW. ► The optimization of underwater FSW was conducted through the model. ► The intrinsic reason for strength improvement by underwater FSW was illustrated.
Abstract During the friction stir welding (FSW) of heat-treatable aluminum alloys, the welding thermal cycles tend to cause a local softening in the joints and thus lead to a degradation in joint properties. Underwater FSW has been demonstrated to be available for the strength improvement of normal joints. In order to obtain the optimum welding condition for underwater FSW, a 2219-T6 aluminum alloy was underwater friction stir welded and a mathematical model was developed to optimize the welding parameters for maximum tensile strength in the present study. The results indicate that a maximum tensile strength of 360MPa can be achieved through underwater FSW, higher than the maximum tensile strength obtained in normal condition.
Mathematical model and optimization for underwater friction stir welding of a heat-treatable aluminum alloy
Zhang, Huijie (author) / Liu, Huijie (author)
2012-09-11
6 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2012
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