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Joining metals by combining mechanical stirring and thermomechanical treatment to form a globular weld structure
, Article 9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006, Busan, 11 September 2006 through 13 September 2006 ; Volume 116-117 , 2006 , Pages 397-401 ; 10120394 (ISSN); 3908451264 (ISBN); 9783908451266 (ISBN) ; Aashuri, H ; Kokabi, A ; Gharacheh, M. A ; Mola, J ; Sharif University of Technology
Trans Tech Publications Ltd
2006
Abstract
A method for joining metals in the semisolid state is presented. A model alloy Sn-15%Pb was used to demonstrate the concept. By presented process, dendritic microstructure of the weld zone can be avoided. Moreover, near-weld zone of the cold worked substrates which is affected by heat would have a globular structure due to a thermomechanical treatment. The two substrates were heated up locally in the joint line to the semisolid temperature range. At this point a stirrer was introduced into the weld seam in order to mix the two sides into a single uniform joint. Localized mechanical properties of different zones were examined using Shear Punch Test (SPT), showing a good strength in the weld...
Joining metals by combining mechanical stirring and thermomechanical treatment to form a globular weld structure
, Article Solid State Phenomena ; Volume 116-117 , 2006 , Pages 397-401 ; 10120394 (ISSN) ; Aashuri, H ; Kokabi, A. H ; Abbasi Gharacheh, M ; Mola, J ; Sharif University of Technology
Trans Tech Publications Ltd
2006
Abstract
A method for joining metals in the semisolid state is presented. A model alloy Sn-15%Pb was used to demonstrate the concept. By presented process, dendritic microstructure of the weld zone can be avoided. Moreover, near-weld zone of the cold worked substrates which is affected by heat would have a globular structure due to a thermomechanical treatment. The two substrates were heated up locally in the joint line to the semisolid temperature range. At this point a stirrer was introduced into the weld seam in order to mix the two sides into a single uniform joint. Localized mechanical properties of different zones were examined using Shear Punch Test (SPT), showing a good strength in the weld...