A simple methodology to define conical tool geometry and welding parameters in friction stir welding
- Gratecap F. ,
- Racineux G. and
- Marya S.
- Gratecap F. ,
- Racineux G. and
- Marya S.
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Description
A methodology is presented to define conical tool geometry and process parameters for friction stir welding (FSW) of thin plates. A calculation algorithm integrating a basic thermal model, tool geometry and process kinematics is proposed, the process window is defined, and experimental investigations on AA 2017-T4 alloys using a shouldered unthreaded conical tool are reported. The methodology was based on a concept that the tool geometry and process parameters should satisfy four heuristics: a thermal condition and rules relevant to volume, surface and material flow. An optimisation algorithm for the selection of process parameters and tool geometry was implemented in "Matlab". Experimental results are reported to validate the thermal model and various rules. A window of operating parameters is discussed.
7th International Symposium, 20-22 May 2008, 10A: Process/Control 4, Paper 02
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