Tool torque measurement based heat generation model of friction stir welding
- Su H. and
- Wu C.S.
- Su H. and
- Wu C.S.
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A 3D fully coupled computational fluid dynamics model was established to investigate the heat generation and material flow during friction stir welding, and the measured tool torque and axial force were used to characterise the contact conditions (friction coefficient and slip rate) by considering the various pressure conditions at the tool-workpiece interface. The mathematical model was developed by solving mass, momentum and energy conservation equations using the commercial software package FLUENT. Friction coefficients and slip rates were calculated for tool rotational speeds of 600-1000 rpm using the physical properties of 2024 aluminium alloys. Heat from interfacial friction and plastic deformation were taken into account.
10th International Symposium, 20-22 May 2014, Poster Session, Paper 15
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