Smoothed particle hydrodynamic modeling of additive frictions stir deposition manufacturing of aluminium alloy 6061
- Stubblefield G.G. ,
- Fraser K.A. ,
- Phillips B.J. ,
- et al
- Stubblefield G.G. ,
- Fraser K.A. ,
- Phillips B.J. ,
- Jordon J.B. and
- Allison P.G.
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With regard to the development of additive friction stir deposition (or MELD) as an additive manufacturing process, a mesh-free coupled thermomechanical approach was employed to model MELD by invoking smoothed particle hydrodynamics to discretise the set of continuum conservation equations, and data such as temperature, stress and plastic strain were calculated from the simulation which, when coupled with structure-process-property studies, facilitated optimisation of output material properties. MELD simulations were conducted on an AA 6061 aluminium alloy (Al, 1%Mg, 0.6%Si) with process parameters incorporating a rotational speed of 300-420 rpm and a traverse speed of 127-203 mm/s. To calibrate the model, experimental data such as phase characterisation and grain morphology correlated to plastic and thermal loading were gathered from thermomechanical simulations and MELD depositions.
12th International Symposium, 26-28 Jun 2018, Session 4A: FSW Tools, Paper 02
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